id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
|---|---|---|---|---|---|---|
astro-ph/9509054 | A Theory of Non-Local Mixing Length Convection. III. Comparing Theory
and Numerical Experiment | We solve the nonlocal convection equations. The solutions for four model
problems are compared with results of GSPH simulations. In each case we test
two closure schemes: 1) where third moments are defined by the diffusion
approximation; and 2) where the full third moment equations are used and fourth
moments are defin... | 1995-09-08 | 2015-06-24 | [
"astro-ph"
] | Scott Grossman (Northwestern University) |
astro-ph/9509049 | Warm Inflation | Assuming a first order phase transition during inflation, a model scenario is
described which does not require a tiny coupling constant. Thermal equilibrium
is closely maintained as inflation commences. No large scale reheating is
necessary. Solutions for $N> 70$ are found for any $\delta \rho / \rho$ in the
range $10^... | 1995-09-08 | 2008-11-26 | [
"astro-ph",
"hep-ph"
] | Arjun Berera (Penn State) |
astro-ph/9509039 | Medium Resolution Near Infrared (2.15micron--2.35micron) Spectroscopy of
Late-type Main Sequence stars | We present an atlas of moderate resolution ($\lambda/\Delta\lambda\sim$1380)
2.15~\micron\ to 2.39~\micron\ spectra of 33 luminosity class V stars of
spectral type F3 to M6 in the MK classification system. We find that the
equivalent widths of several spectral features vary significantly with
temperature and typically ... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | B. Ali, John S. Carr, D. L. DePoy, Jay A. Frogel & K. Sellgren |
astro-ph/9509047 | Loop Corrections in Non-Linear Cosmological Perturbation Theory | Using a diagrammatic approach to Eulerian perturbation theory, we
analytically calculate the variance and skewness of the density and velocity
divergence induced by gravitational evolution from Gaussian initial conditions,
including corrections *beyond* leading order. Except for the power spectrum,
previous calculation... | 1995-09-07 | 2011-09-30 | [
"astro-ph"
] | Roman Scoccimarro and Joshua Frieman (Fermilab and Univ. of Chicago) |
astro-ph/9509044 | The Statistics of Nearly On-Axis Gravitational Lensing Events | A small volume of space, nearly on-axis behind a gravitational lens with
respect to a given source, will receive a greatly increased radiation flux. In
the idealized case of a point mass lens acting on a point source in complete
isolation, the volume will approach zero only as the flux tends to infinity; in
fact, the v... | 1995-09-07 | 2011-04-12 | [
"astro-ph"
] | Yun Wang (Fermilab) |
astro-ph/9509040 | Variations of the Selective Extinction Across the Galactic Bulge -
Implications for the Galactic Bar | We propose a new method to investigate the coefficient of the selective
extinction, based on two band photometry. This method uses red clump stars as a
means to construct the reddening curve. We apply this method to the OGLE
color-magnitude diagrams to investigate the variations of the selective
extinction towards vari... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | P. R. Wozniak and K. Z. Stanek |
astro-ph/9509043 | The Angular Two Point Correlation Function for the FIRST Radio Survey -
Initial Results | The angular two-point correlation function is calculated for the first 300
square degrees of the FIRST radio survey. Results for various subsamples are
also obtained. Double-lobed sources are shown to have a higher clustering
amplitude than the sample as a whole. Small differences in the correlation
function from one r... | 1995-09-07 | 2008-02-03 | [
"astro-ph"
] | C.M.Cress, D.J.Helfand, R.H.Becker, R.L.White, M.D.Gregg |
astro-ph/9509046 | Toward a Unified View of Black Hole High Energy States | We present here a review of high energy (> 1 keV) observations of seven black
hole candidates, six of which have estimated masses. In this review we focus on
two parameters of interest: the ratio of ``non-thermal" to total luminosity as
a function of the total luminosity divided by the Eddington luminosity, and the
roo... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | Michael A. Nowak (JILA) |
astro-ph/9509035 | CMB Anisotropies, Large-Scale Structure and the Future | We are now beginning to learn detailed information about cosmological
parameters from the shapes of the matter and radiation power spectra, together
with their relative normalization. As more high quality data are gathered from
galaxy surveys and from microwave anisotropies, the range of allowed models is
expected to g... | 1995-09-07 | 2007-05-23 | [
"astro-ph"
] | Douglas Scott |
astro-ph/9509042 | Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear
Case | For a given source and lens pair, there is a thin on-axis tube-like volume
behind the lens in which the radiation flux from the source is greatly
increased due to gravitational lensing. Any objects (such as dust grains) which
pass through such a thin tube will experience strong bursts of radiation, i.e.,
Extreme Gravit... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | Yun Wang and Edwin L. Turner |
astro-ph/9509037 | The Observational Appearance of Slim Accretion Disks | We reexamine the hypothesis that the optical/UV/soft X-ray continuum of
Active Galactic Nuclei is thermal emission from an accretion disk. Previous
studies have shown that fitting the spectra with the standard, optically thick
and geometrically thin accretion disk models often led to luminosities which
contradict the b... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | Ewa Szuszkiewicz (SISSA), Matthew A. Malkan (ULCA), Marek A.
Abramowicz (Goeteborg University) |
astro-ph/9509036 | The internal dynamics of very flattened normal galaxies: Stellar
distribution functions for NGC 4697 | Using the photometry and the kinematic data, part of which acquired with the
NTT, we constructed a 2-integral and a 3-integral distribution function for NGC
4697. We detected a nuclear dust lane at $3.4''$ or 0.4 kpc from the centre. A
comparison of the Lucy-deprojection method and the multi-gaussian expansion
method s... | 1995-09-07 | 2007-05-23 | [
"astro-ph"
] | H. Dejonghe, V. De Bruyne, P. Vauterin and W.W. Zeilinger |
astro-ph/9509045 | The Wiener-Filtered COBE DMR Data and Predictions for the Tenerife
Experiment | We apply a Wiener filter to the two-year COBE DMR data. The resulting sky map
has significantly reduced noise levels compared to the raw data: the most
prominent hot and cold spots are significant at the 4-sigma level. Furthermore,
the entire covariance matrix of the errors in the filtered sky map is known,
and it is t... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | Emory F. Bunn, Yehuda Hoffman, and Joseph Silk |
astro-ph/9509038 | Starbursts and Star Clusters in the Ultraviolet | Hubble Space Telescope ultraviolet (UV) images of nine starburst galaxies
reveal them to be highly irregular, even after excluding compact sources
(clusters and resolved stars). Most (7/9) are found to have a similar intrinsic
effective surface brightnesses, suggesting that a negative feedback mechanism
is setting an u... | 1995-09-07 | 2009-10-28 | [
"astro-ph"
] | G.R. Meurer, T.M. Heckman, C. Leitherer, A. Kinney, C. Robert and D.R.
Garnett |
astro-ph/9509048 | The origin of soft X-rays in luminous AGN | We predict that the UV bump spectrum of quasars extends into the soft X-ray
range with a steep power law. For radio-louds, the spectral index is alpha_s ~
1.7 (S_nu = S_o nu^-alpha), and for radio-quiets it should be somewhat steeper
alpha_s >~ 1.7. The prediction is based on a simple scenario in which all
quasars, rad... | 1995-09-07 | 2007-05-23 | [
"astro-ph"
] | K. Mannheim, M. Schulte, and J. Rachen |
astro-ph/9509041 | Strange matter and its stability in presence of magnetic field | We study the effect of a magnetic field on the interacting quark matter and
apply to strange star. We considere the low temperature approximation to
strange matter. We find that the interacting strange quark matter is more
stable compare to free quark gas in presence of strong external magnetic field
with zero and fini... | 1995-09-07 | 2008-02-03 | [
"astro-ph"
] | Pradip K Sahu |
astro-ph/9509034 | Galaxy Cluster Virial Masses and Omega | To re-examine the rich cluster $\Omega$ value the CNOC Cluster Survey has
observed 16 high X-ray luminosity clusters in the redshift range 0.17 to 0.55,
obtaining approximately 2600 velocities in their fields. Directly adding all
the K and evolution corrected $r$ band light to $M_r(0)=-18.5$, about
$0.2L_\ast$, and cor... | 1995-09-06 | 2009-10-28 | [
"astro-ph"
] | Carlberg, Yee, Ellingson, Abraham, Gravel, Morris & Pritchet |
astro-ph/9509028 | HST and MERLIN Observations of the Jet in 3C273 | We present red and blue images of the jet of the quasar 3C273 obtained with
the WFPC2 on the Hubble Space Telescope as well as a new radio map made with
the MERLIN array. The images are of significantly better quality than that of
previous data. The two maps are aligned to an accuracy of 0.020$''$; this
accuracy is ach... | 1995-09-06 | 2009-10-28 | [
"astro-ph"
] | J. N. Bahcall, S. Kirhakos, and D. P. Schneider, R. J. Davis, T. W. B.
Muxlow, S. T. Garrington, R. G. Conway, and S. C. Unwin |
astro-ph/9509029 | Effect of Sub-Structure in Clusters on the Local Weak-Shear Field | Weak shear maps of the outer regions of clusters have been successfully used
to map the distribution of mass at large radii. The effects of substructure in
clusters on such reconstructions of the total mass have not been systematically
studied. We propose a new method to study the effect of perturbers (bright
cluster g... | 1995-09-06 | 2007-05-23 | [
"astro-ph"
] | Priyamvada Natarajan and Jean-Paul Kneib |
astro-ph/9509030 | The Merging History of the Milky Way | The age distribution, and chemical elemental abundances, of stars in the halo
of the Milky Way provide constraints on theories of galaxy formation. As one
specific example, the accretion of satellite galaxies similar to the present
retinue of dwarf spheroidals (dSphs) would provide an observable metal-poor,
intermediat... | 1995-09-06 | 2015-06-24 | [
"astro-ph"
] | M. Unavane, R.F.G. Wyse, G.F. Gilmore |
astro-ph/9509033 | Aspects of Scaling in Gravitational Clustering | The scaling ansatz of Hamilton et al. effectively extends the idea of
self-similar scaling to initial power spectra of any generic shape.
Applications of this ansatz have provided a semi-empirical analytical
description of gravitational clustering which is extremely useful. This
contribution examines the two theoretica... | 1995-09-06 | 2007-05-23 | [
"astro-ph"
] | Bhuvnesh Jain |
astro-ph/9509027 | Formation of MACHO-Primordial Black Holes in Inflationary Cosmology | As a nonbaryonic explanation of massive compact halo objects, a
phenomenological model is presented which predicts formation of primordial
black holes at a desired mass scale. The required feature of initial density
fluctuation is realized making use of the primordially isocurvature fluctuation
generated in an inflatio... | 1995-09-06 | 2011-05-23 | [
"astro-ph"
] | Jun'ichi Yokoyama (YITP Uji Research Center, Kyoto U.) |
astro-ph/9509032 | Wavelet Space-Scale-Decomposition Analysis of QSO's Ly$\alpha$
Absorption Lines: Spectrum of Density Perturbations | A method for measuring the spectrum of a density field by a discrete wavelet
space-scale decomposition (SSD) has been studied. We show how the power
spectrum can effectively be described by the father function coefficients (FFC)
of the wavelet SSD. We demonstrate that the features of the spectrum, such as
the magnitude... | 1995-09-06 | 2007-05-23 | [
"astro-ph"
] | Jesus Pando and Li-Zhi Fang |
astro-ph/9509031 | The Apparently Normal Galaxy Hosts for Two Luminous Quasars | HST images (with WFPC2) of PHL~909\ ($z = 0.171$) and PG~0052$+$251\ ($z =
0.155$) show that these luminous radio-quiet quasars each occur in an
apparently normal host galaxy. The host galaxy of PHL~909 is an elliptical
galaxy ($\sim$ E4) and the host of PG~0052$+$251 is a spiral ($\sim$~Sb). Both
host galaxies are sev... | 1995-09-06 | 2016-08-30 | [
"astro-ph"
] | John N. Bahcall, Sofia Kirhakos, and Donald P. Schneider |
astro-ph/9509020 | Identification of the soft X-ray excess in Cygnus X-1 with disc emission | We present results of a study of the soft X-ray excess in the black hole
candidate Cygnus X-1 made with the {\it Rosat PSPC}, using observations taken
during persistent emission at orbital phases close to 0.5. The soft excess can
be well fitted as a blackbody with temperature $\rm {kT_{bb}}$ = $\rm {0.13\pm
0.02}$ keV.... | 1995-09-05 | 2007-05-23 | [
"astro-ph"
] | M. Balucinska-Church, T. Belloni, M. J. Church and G. Hasinger |
astro-ph/9509021 | Observations of the X-ray Nova GRO~J0422+32: II: Optical Spectra
Approaching Quiescence | We present results obtained from a series of 5~\AA\ resolution spectra of the
X-ray Nova GRO~J0422+32 obtained in 1993~October, when the system was
approximately 2 magnitudes above quiescence, with ${\rm R \sim 19}$. The data
were obtained in an effort to measure the orbital radial velocity curve of the
secondary, but ... | 1995-09-05 | 2009-10-28 | [
"astro-ph"
] | Michael R. Garcia, Paul J. Callanan, Jeffrey E. McClintock, Ping Zhao |
astro-ph/9509024 | Formation and Radiation Acceleration of Pair Plasmoids Near Galactic
Black Holes | We study quantitatively the formation and radiation acceleration of
electron-positron pair plasmoids produced by photon-photon collisions near
Galactic black holes (GBHs). The terminal ejecta velocity is found to be
completely determined by the total disk luminosity, proton loading factor and
disk size, with no depende... | 1995-09-05 | 2009-10-28 | [
"astro-ph"
] | Hui Li (LANL) & Edison P. Liang (Rice University) |
astro-ph/9509018 | Dynamics of Subcritical Bubbles in First Order Phase Transition | We derivate the Langevin and the Fokker-Planck equations for the radius of
$O(3)$-symmetric subcritical bubbles as a phenomenological model to treat
thermal fluctuation. The effect of thermal noise on subcritical bubbles is
examined. We find that the fluctuation-dissipation relation holds and that in
the high temperatu... | 1995-09-05 | 2009-10-28 | [
"astro-ph",
"hep-ph"
] | Tetsuya Shiromizu, Masahiro Morikawa and Jun'ichi Yokoyama |
astro-ph/9509023 | EGRET Observations of Gamma Rays from Point Sources with Galactic
Latitude +10(degrees) < b < +40(degrees) | The EGRET instrument aboard the Compton Gamma Ray Observatory (CGRO) has
completed the first all-sky survey in high-energy gamma rays and has repeatedly
viewed selected portions of the sky. Analysis of the region with galactic
latitude $+10\arcdeg < b < +40\arcdeg$ indicates the presence of nineteen point
sources, incl... | 1995-09-05 | 2009-10-28 | [
"astro-ph"
] | P. L. Nolan (Stanford University) et al |
astro-ph/9509025 | Astrophysical signals of P and T violation by gravity | We study the observational consequences of the leading order P and T
violating gauge invariant graviton-photon interactions. Such interactions give
rise to gravitational birefringence - the velocity of light signals depends
upon their polarisation, which is absent in Einstein's gravity. Using
experimentally established... | 1995-09-05 | 2007-05-23 | [
"astro-ph"
] | A.R. Prasanna and Subhendra Mohanty |
astro-ph/9509022 | Cerenkov radiation by charged particles in an external gravitational
field | Charged particles in the geodesic trajectory of an external gravitational
field do not emit electromagnetic radiation. This is expected from the
application of the equivalence principle. We show here that charged particles
propagating in an external gravitational field with non-zero components of the
Ricci tensor can e... | 1995-09-05 | 2009-10-28 | [
"astro-ph"
] | Anshu Gupta, Subhendra Mohanty and Manoj K. Samal |
astro-ph/9509019 | Weak Gravitational Lensing: Current Status and Future Prospects | In this review I will describe progress that has been made in determining
masses of galaxy clusters using `weak lensing' and how this technique my be
applied in the future to determine the dark matter distribution both on
supercluster scales and on the scale of galaxy haloes. | 1995-09-05 | 2007-05-23 | [
"astro-ph"
] | Nick Kaiser (CITA, Toronto; on leave at AAO, Sydney) |
astro-ph/9509013 | Faint Blue Galaxies as a Probe of the X-ray Background at High Redshift | We present a formalism describing the physical content of cross-correlation
functions between a diffuse background and a population of discrete sources.
The formalism is used to interpret cross-correlation signals between the
unresolved X-ray background and a galaxy population resolved to high redshift
in another spect... | 1995-09-04 | 2015-06-24 | [
"astro-ph"
] | M.A. Treyer, O. Lahav |
astro-ph/9509017 | The Great Circle Camera: A New Drift Scanning Instrument | We discuss the design, construction, and use of a new class of scanning
camera that eliminates a critical limitation of standard CCD drift-scan
observations. A standard scan, which involves no correction for the
differential drift rates and curved stellar paths across the field-of-view,
suffers from severe image degrad... | 1995-09-04 | 2009-10-28 | [
"astro-ph"
] | Dennis Zaritsky (UCO/Lick Obs., UCSC), Stephen A. Shectman (Carnegie
Obs.), and Gregory Bredthauer (Carnegie Obs.) |
astro-ph/9509015 | The discovery of a high redshift type 2 QSO | We report the discovery of a high redshift, narrow emission-line galaxy
identified in the optical follow-up of deep ROSAT fields. The object has a
redshift of z=2.35 and its narrow emission lines together with its high optical
and X-ray luminosity imply that this is a rare example of a type 2 QSO. The
intrinsic X-ray a... | 1995-09-04 | 2007-05-23 | [
"astro-ph"
] | O. Almaini, B.J. Boyle, R.E. Griffiths, T. Shanks, G.C. Stewart, I.
Georgantopoulos |
astro-ph/9509012 | Global Aspects of Elliptical Instability in Tidally Distorted Accretion
Disks | Tidally distorted accretion disks in binary star systems are subject to a
local hydrodynamic instability which excites $m=1$ internal waves. This
instability is three dimensional and approximately incompressible. We study the
global aspects of this local instability using equations derived under the
shearing sheet appr... | 1995-09-04 | 2009-10-28 | [
"astro-ph"
] | Dongsu Ryu, Jeremy Goodman, and Ethan T. Vishniac |
astro-ph/9509014 | Applications of Minkowski Functionals to the Statistical Analysis of
Dark Matter Models | A new method for the statistical analysis of 3D point processes, based on the
family of Minkowski functionals, is explained and applied to modelled galaxy
distributions generated by a toy-model and cosmological simulations of the
large-scale structure in the Universe. These measures are sensitive to both,
geometrical a... | 1995-09-04 | 2007-05-23 | [
"astro-ph"
] | Michael Platzoeder and Thomas Buchert |
astro-ph/9509011 | Prominence and flare fine structure from cross-field thermal conduction | Thermal conduction across a magnetic field is strongly suppressed compared
with conduction along the field. However, if a flare is heated by a highly
filamented beam directed along the field, then the array of heated cells in a
cross-section of the flare will result in both small spatial scales (with
consequently large... | 1995-09-04 | 2016-08-30 | [
"astro-ph"
] | Norman Gray and John C Brown (University of Glasgow) |
astro-ph/9509016 | Study of the dynamics of the core of A2218 | We report the results of an attempt to study the velocity structure of the
core of the cluster A2218 in order to probe its dynamical state. The aim is to
understand if the core is indeed virialized? relaxed? or in hydrodynamic
equilibrium? We use cluster lensing data in conjunction with the optical galaxy
data to solve... | 1995-09-04 | 2007-05-23 | [
"astro-ph"
] | Priyamvada Natarajan |
astro-ph/9509010 | Using Tidal Tails to Probe Dark Matter Halos | We use simulations of merging galaxies to explore the sensitivity of the
morphology of tidal tails to variations of the halo mass distributions in the
parent galaxies. Our goal is to constrain the mass of dark halos in well-known
merging pairs. We concentrate on prograde encounters between equal mass
galaxies which rep... | 1995-09-04 | 2008-11-26 | [
"astro-ph"
] | John Dubinski, J. Christopher Mihos, and Lars Hernquist |
astro-ph/9509008 | The Topology of The Cosmic Microwave Background Anisotropy on The Scale
1 degree | In this paper we develop the theory of clusterization of peaks in a Gaussian
random field. We have obtained new mathematical results from this theory and
the theory of percolation and have proposed a topological method of analysis of
sky maps based on these results. We have simulated $10^o\times10^o$ sky maps of
the co... | 1995-09-02 | 2009-10-28 | [
"astro-ph"
] | D.I. Novikov and H.E. Jorgensen |
astro-ph/9509009 | Theory of Pixel Lensing | Pixel lensing, gravitational microlensing of unresolved stars, is potentially
much more sensitive and much more widely applicable than is generally
recognized. I give explicit expressions for the pixel noise induced by a
time-variable PSF, by photometric and geometric misalignment, and by discrete
pixelization, and I s... | 1995-09-02 | 2008-11-26 | [
"astro-ph"
] | Andrew Gould |
astro-ph/9509003 | Models of Soft X-Ray Transients and Dwarf Novae | Models of Soft X--ray Transients are presented and compared with
observations. The importance of inner advection--dominated flows in quiescent
transient sources is discussed, as well as the problem of global stability of
the standard outer accretion disc. A comparison is made with similar problems
in dwarf nova models. | 1995-09-01 | 2016-01-27 | [
"astro-ph"
] | J.P. Lasota |
astro-ph/9509004 | Dwarf Novae at Low Mass Transfer Rates | We show that if the inner regions of accretion discs in quiescent dwarf nova
systems are removed by magnetic disruption or evaporated by siphon flows, the
remaining disc is globally stable for mass transfer rates $\lta 10^{15}$ g
s$^{-1}$. This implies that (super)outbursts in these systems have to be
triggered by an e... | 1995-09-01 | 2011-05-23 | [
"astro-ph"
] | J.P. Lasota, J.M. Hameury and J.M. Hure |
astro-ph/9508159 | Formation of Structure in the Universe | An introduction to modern theories for the origin of structure in the
Universe is given. After a brief review of the growth of cosmological
perturbations in an expanding Universe and a summary of some important
observational results, the lectures focus on the inflationary Universe scenario
and on topological defect mod... | 1995-09-01 | 2008-02-03 | [
"astro-ph",
"hep-ph"
] | Robert H. Brandenberger (Brown University and Univ. of British
Columbia) |
astro-ph/9509001 | Colour Gradients in the Optical and Near-IR | For many years broadband colours have been used to obtain insight into the
contents of galaxies, in particular to estimate stellar and dust content.
Broadband colours are easy to obtain for large samples of objects, making them
ideal for statistical studies. In this paper I use the radial distribution of
the colours in... | 1995-09-01 | 2019-07-31 | [
"astro-ph"
] | Roelof S. de Jong (University of Durham) |
astro-ph/9508158 | BATSE Gamma-Ray Burst Line Search: IV. Line Candidates from the Visual
Search | We evaluate the significance of the line candidates identified by a visual
search of burst spectra from BATSE's Spectroscopy Detectors. None of the
candidates satisfy our detection criteria: an F-test probability less than
10^-4 for a feature in one detector and consistency among the detectors which
viewed the burst. M... | 1995-09-01 | 2009-10-28 | [
"astro-ph"
] | D. L. Band, S. Ryder, L. A. Ford, J. L. Matteson (UCSD), D. M. Palmer,
B. J. Teegarden (NASA/GSFC), M. S. Briggs, W. S. Paciesas, G. N. Pendleton,
R. D. Preece (UAH) |
astro-ph/9509005 | Lagrangian Perturbation Approach to the Formation of Large-scale
Structure | The present lecture notes address three columns on which the Lagrangian
perturbation approach to cosmological dynamics is based: 1. the formulation of
a Lagrangian theory of self--gravitating flows in which the dynamics is
described in terms of a single field variable; 2. the procedure, how to obtain
the dynamics of Eu... | 1995-09-01 | 2007-05-23 | [
"astro-ph",
"gr-qc"
] | T. Buchert |
astro-ph/9509007 | Chemistry and Kinematics in the Solar Neighborhood: Implications for
Stellar Populations and for Galaxy Evolution | The immediate Solar neighborhood should be a fair sample of the local Galaxy.
However, the chemical abundance distribution of long-lived disk stars very near
the Sun contains a factor of five to ten more metal-poor stars, $-1 \simlt {\rm
[Fe/H]} \simlt -0.4$ dex, than is consistent with modern star-count models of
larg... | 1995-09-01 | 2011-05-05 | [
"astro-ph"
] | Rosemary F.G. Wyse (JHU; IoA, Cambridge; CfPA, Berkeley) and Gerard
Gilmore (IoA, Cambridge) |
astro-ph/9509006 | Coalescing Neutron Stars -- a Step Towards Physical Models. I.
Hydrodynamic Evolution and Gravitational-Wave Emission | We investigate the dynamics and evolution of coalescing neutron stars.
Although the code (Piecewise Parabolic Method) is purely Newtonian, we do
include the emission of gravitational waves and their backreaction on the
hydrodynamic flow. The properties of neutron star matter are described by the
physical equation of st... | 1995-09-01 | 2008-11-26 | [
"astro-ph"
] | M. Ruffert, H.-Th. Janka, G. Schaefer |
astro-ph/9509002 | Mechanisms for Dwarf Nova Outbursts and Soft X-Ray Transients | I review models trying to explain dwarf-nova outbursts and soft X-ray
transients. The disc-instability model for dwarf-novae is still in its
preliminary state of development: its predictions depend very strongly on the
unknown viscosity mechanism. It is also doubtful that a {\sl pure}
disc-instability phenomenon will b... | 1995-09-01 | 2011-04-15 | [
"astro-ph"
] | J.P. Lasota |
astro-ph/9508153 | New Results on the Coma cluster: Revealing the Primary Component | Recent observations of the Coma cluster of galaxies in its central region
have provided approximately 250 new redshifts - allowing a good membership
criterion to be established for brighter galaxies - and magnitudes for 8000
objects in the same region derived from photometric data complete up to
V$_{26.5}$=22.5. A thor... | 1995-08-31 | 2007-05-23 | [
"astro-ph"
] | F. Durret, A. Biviano, D. Gerbal, O. Le Fevre, C. Lobo, A. Mazure, E.
Slezak |
astro-ph/9508149 | The Kinematics of Emission-Line Galaxies in Clusters from ENACS | By using the ENACS data, we have studied the properties of emission-line
galaxies (ELG) in clusters. The fraction of ELG in clusters is 16~%; this
fraction is slightly dependent on the cluster velocity dispersion, being larger
for ``colder'' systems. ELG tend to occur more frequently than other cluster
galaxies in subs... | 1995-08-31 | 2007-05-23 | [
"astro-ph"
] | A. Biviano, P. Katgert, A. Mazure, M. Moles, R. den Hartog, P. Focardi |
astro-ph/9508152 | Small Groups of Galaxies: a Clue to a Critical Universe | We study the formation and the evolution of galaxy groups in a critical
universe, showing the importance of secondary infall for their dynamical
evolution. Merging is only slightly accelerated if galaxies have massive halos,
because the mass initially associated to the individual galaxies is soon
tidally stripped. Stri... | 1995-08-31 | 2009-10-28 | [
"astro-ph"
] | Fabio Governato, Paolo Tozzi and Alfonso Cavaliere (Univ. Tor Vergata) |
astro-ph/9508157 | Why Not Consider Closed Universes? | We consider structure formation and CMB anisotropies in a closed universe,
both with and without a cosmological constant. The CMB angular power spectrum
and the matter transfer function are presented, along with a discussion of
their relative normalization. This represents the first full numerical
evolution of density ... | 1995-08-31 | 2009-08-18 | [
"astro-ph"
] | Martin White & Douglas Scott |
astro-ph/9508150 | A non-parametric and scale-independent method for cluster analysis II:
the multivariate case | A general method is described for detecting and analysing galaxy systems. The
multivariate geometrical structure of the sample is studied by using an
extension of the method which we introduced in a previous paper. The method is
based on an estimate of the probability density underlying a data sample. The
density is es... | 1995-08-31 | 2015-06-24 | [
"astro-ph"
] | Armando Pisani |
astro-ph/9508154 | Minkowski Functionals in Cosmology | Minkowski functionals provide a novel tool to characterize the large-scale
galaxy distribution in the Universe. Here we give a brief tutorial on the basic
features of these morphological measures and indicate their practical
application for simulation data and galaxy redshift catalogues as examples. | 1995-08-31 | 2008-02-03 | [
"astro-ph"
] | J. Schmalzing, M. Kerscher, T. Buchert |
astro-ph/9508148 | The Cosmological Density and Ionization of Hot Gas: Oxygen VI Absorption
in Quasar Spectra | We have conducted the first survey for Oxygen VI $\lambda\lambda 1032,1038$
absorption lines in QSO spectra. We used medium resolution ($R \approx 1300$)
high signal-to-noise ($\approx 20$) Faint Object Spectrograph spectra of 11
QSOs ($0.53\leq$\zem$\leq2.08$) from the Hubble Space Telescope Archive. We use
simulated ... | 1995-08-31 | 2009-10-28 | [
"astro-ph"
] | Scott Burles & David Tytler (CASS, University of California at San
Diego) |
astro-ph/9508151 | Stellar Orbits in Barred Galaxies with Nuclear Rings | We investigate the dynamical response of stellar orbits in a rotating barred
galaxy potential to the perturbation by a nuclear gaseous ring. The change in
3D periodic orbit families is examined as the gas accumulates near the inner
Lindblad resonance. It is found that the x2/x3 loop extends to higher Jacobi
energy and ... | 1995-08-31 | 2007-05-23 | [
"astro-ph"
] | C.H. Heller and I. Shlosman |
astro-ph/9508155 | Gamma Ray Pulsars: Emission from Extended Polar Cap Cascades | We have used a Monte Carlo simulation of a Polar Cap (PC) model of gamma-ray
pulsars to estimate light curves and phase-resolved spectra for sources whose
rotational and magnetic axes are oriented so that only one of the magnetic
poles produces emission directed at the Earth. In this Single Polar Cap (SPC)
scenario, ev... | 1995-08-31 | 2009-10-28 | [
"astro-ph"
] | Joseph K. Daugherty (UNCA) & Alice K. Harding (NASA/GSFC) |
astro-ph/9508156 | Faint Blue Galaxies and the Epoch of Dwarf-Galaxy Formation | Both theoretical and observational lines of reasoning suggest that the very
faint (B > 24) galaxies seen in deep images of the sky are small low-mass
galaxies that experienced starburst at 0.5<z<1 and have since faded into low
luminosity, low surface brightness objects. We scrutinize this hypothesis in
order to determi... | 1995-08-31 | 2009-06-19 | [
"astro-ph"
] | Arif Babul and Henry C. Ferguson |
astro-ph/9508146 | A Self-Consistent Dynamical Model for the {\sl COBE} Observed Galactic
Bar and Its Application to Microlensing | A self-consistent stellar dynamical model for the Galactic bar is constructed
from about 500 numerically computed orbits with an extension of the
Schwarzschild technique. The model fits the {\sl COBE} found asymmetric boxy
light distribution and the observed stellar kinematics of the bulge. The model
potential is also ... | 1995-08-30 | 2007-05-23 | [
"astro-ph"
] | HongSheng Zhao |
astro-ph/9508147 | Shell Masers | We present the analytical solution of a maser shaped like a spherical shell.
We determine the general condition on the size of the central cavity at which a
sphere becomes a shell maser, and derive the intensity, beaming angle and
observed size of both unsaturated and saturated shells. | 1995-08-30 | 2011-05-23 | [
"astro-ph"
] | Moshe Elitzur (University of Kentucky), V. Bujarrabal (Yebes
Observatory, Spain) |
astro-ph/9508145 | A Sharp Event in the Image a Light Curve of the Double Quasar 0957+561
and Prediction of the 1996 Image B Light Curve | CCD photometry of the gravitational lens system 0957+561A,B in the g and r
bands was obtained on alternate nights, weather permitting, from December 1994
through May 1995 using the Double Imaging Spectrograph (DIS) on the Apache
Point Observatory (APO) 3.5-meter telescope. The remote observing and fast
instrument chang... | 1995-08-30 | 2012-08-27 | [
"astro-ph"
] | T. Kundic, W.N. Colley, J.R. Gott, III, S. Malhotra, U. Pen, J.E.
Rhoads, K.Z. Stanek, E.L. Turner, J.Wambsganss |
astro-ph/9508144 | Implications of New JHK Photometry and a Deep Infrared Luminosity
Function for the Galactic Bulge | We present deep near-IR photometry for Galactic bulge stars in Baade's
Window, $(l,b) = (1.0\deg, -3.9\deg),$ and another minor axis field at $(l,b) =
(0^\circ,-6^\circ)$. We combine our data with previously published photometry
and construct a luminosity function over the range $5.5 \leq K_0 \leq 16.5$,
deeper than an... | 1995-08-30 | 2016-08-30 | [
"astro-ph"
] | Glenn P. Tiede, Jay A. Frogel, and D. M. Terndrup (Ohio State
University) |
astro-ph/9508143 | Peak statistics on COBE maps | We perform the stastistics of temperature maxima and minima in COBE-DMR
2-year maps. For power-law spectra the surface distribution of peaks implies an
amplitude consistent with more conventional analyses of COBE data (for
instance, we get $Q_{{\rm rms-PS}}=17\pm 3\ \mu $K for a spectral index $%
n=1),$ but not with th... | 1995-08-30 | 2011-05-10 | [
"astro-ph"
] | R. Fabbri and S. Torres |
astro-ph/9508138 | A physical distance indicator for spiral galaxies | In this paper we derive a Tully Fisher relation from measured I band
photometry and H$\alpha$ rotation curves of a large survey of southern sky
spiral galaxies, obtained in Persic \& Salucci (1995) by deprojecting and
folding the raw H$\alpha$ data of Mathewson, Ford \& Buchhorn (1992). We
calibrate the relation by com... | 1995-08-29 | 2007-05-23 | [
"astro-ph"
] | M. A. Hendry, S. Rauzy, P. Salucci, M. Persic |
astro-ph/9508139 | Distance Estimation in Cosmology | In this paper we outline the framework of mathematical statistics with which
one may study the properties of galaxy distance estimators. We describe, within
this framework, how one may formulate the problem of distance estimation as a
Bayesian inference problem, and highlight the crucial question of how one
incorporate... | 1995-08-29 | 2009-10-28 | [
"astro-ph"
] | M.A. Hendry, J.F.L. Simmons |
astro-ph/9508142 | Self-similarity and scaling behavior of scale-free gravitational
clustering | We measure the scaling properties of the probability distribution of the
smoothed density field in $N$-body simulations of expanding universes with
scale-free initial power-spectra, with particular attention to the predictions
of the stable clustering hypothesis. We concentrate our analysis on the ratios
$S_Q(\ell)\equ... | 1995-08-29 | 2009-10-28 | [
"astro-ph"
] | S. Colombi, F.R. Bouchet and L. Hernquist |
astro-ph/9508136 | Thresholds on star formation and the chemical evolution of galactic
discs: cosmochronology and the age of the galaxy | In this paper we analyse different chronometers based on the models of
chemical evolution developed in Chamcham, Pitts \& Tayler (1993; hereafter CPT)
and Chamcham \& Tayler (1994; hereafter CT). In those papers we discussed the
ability of our models to reproduce the observed G-dwarf distribution in the
solar neighbour... | 1995-08-29 | 2015-06-24 | [
"astro-ph"
] | K. Chamcham and M. A. Hendry |
astro-ph/9508137 | Combined stellar structure and atmosphere models for massive stars II.
Spectral evolution on the main sequence | In Schaerer et al. (1995, Paper I) we have presented the first "combined
stellar structure and atmosphere models" (CoStar) for massive stars, which
consistently treat the entire mass loosing star from the center out to the
outer region of the stellar wind. The models use up-to-date input physics and
state-of-the-art te... | 1995-08-29 | 2007-05-23 | [
"astro-ph"
] | D. Schaerer, A. de Koter, W. Schmutz, A. Maeder |
astro-ph/9508133 | A Multi-Species Model for Hydrogen and Helium Absorbers in Lyman-Alpha
Forest Clouds | We have performed a multi-species hydrodynamical simulation of the formation
and evolution of Lyman alpha clouds in a flat CDM dominated universe with an
external flux of ionizing radiation. We solve the fully coupled non-equilibrium
rate equations for the following species: H, H^+, H^-, H_2, H_2^+, He, He^+,
He^{++}, ... | 1995-08-29 | 2009-10-28 | [
"astro-ph"
] | Yu Zhang, Peter Anninos and Michael L. Norman (NCSA) |
astro-ph/9508135 | Stellar Dynamics and the 3D Structure of Bars | Recent observational constraints restrict the strict applicability of stellar
dynamics in spirals to a few rotation periods. However, stellar dynamics
concepts such as periodic orbits are invaluable for understanding the various
dynamical processes occurring during much more periods. A distinction of two
instability ty... | 1995-08-29 | 2008-02-03 | [
"astro-ph"
] | D. Pfenniger |
astro-ph/9508140 | High Resolution BIMA Observations of CO, HCN, and 13CO in NGC 1068 | We present high-resolution CO, HCN, and 13CO maps of the inner arcminute of
NGC 1068 made with the BIMA interferometer. Several features appear in the CO
map which have not previously been observed: (1) a firm detection of CO line
emission from a compact region centered on the nucleus of the galaxy; (2) the
detection o... | 1995-08-29 | 2007-05-23 | [
"astro-ph"
] | Tamara T. Helfer and Leo Blitz (University of Maryland) |
astro-ph/9508134 | Combined stellar structure and atmosphere models for massive stars I.
Interior evolution and wind properties on the main sequence | We present the first "combined stellar structure and atmosphere models"
(CoStar) for massive stars, which consistently treat the entire mass loosing
star from the center out to the asymptotic wind velocity. The models use
up-to-date input physics and state-of-the-art techniques to model both the
stellar interior and th... | 1995-08-29 | 2007-05-23 | [
"astro-ph"
] | D. Schaerer, A. de Koter, W. Schmutz, A. Maeder |
astro-ph/9508141 | Intracluster Globular Clusters | Globular cluster populations of supergiant elliptical galaxies are known to
vary widely, from extremely populous systems like that of UGC 9799, the
centrally dominant galaxy in Abell 2052, to globular-cluster-poor galaxies such
as NGC 5629 in Abell 2666. Here we propose that these variations point strongly
to the exist... | 1995-08-29 | 2009-10-28 | [
"astro-ph"
] | Michael J. West, Patrick Cote, Christine Jones, William Forman and
Ronald O. Marzke |
astro-ph/9508130 | New Observations and a New Interpretation of CO(3--2) in IRAS
F10214+4724 | New observations with the IRAM interferometer of CO(3--2) from the highly
luminous galaxy IRAS F10214+4724 show the source is 1.5'' x <= 0.9'' ; they
display no evidence of any velocity gradient. This size, together with optical
and IR data that show the galaxy is probably gravitationally lensed, lead to a
new model fo... | 1995-08-28 | 2009-10-28 | [
"astro-ph"
] | D. Downes, P.M. Solomon and S.R. Radford |
astro-ph/9508128 | Evolution of a Magnetic Flux Tube in a Sunspot Penumbra | The motion of an individual magnetic flux tube inside the penumbra of a
sunspot is studied numerically. Here, we present preliminary results. The thin
flux tube approximation together with a simplified radiative heat exchange with
the surroundings is used to study the evolution of a flux tube embedded into a
background... | 1995-08-28 | 2007-05-23 | [
"astro-ph"
] | K. Jahn, R. Schlichenmaier, H.U. Schmidt |
astro-ph/9508127 | The Near-Infrared Fundamental Plane of Elliptical Galaxies | We present results from a near-infrared $K$-band imaging survey of 59
elliptical galaxies in five nearby clusters. We measure photometric parameters
for each galaxy using surface photometry and draw velocity dispersions from the
literature. Three observables define a near-infrared Fundamental Plane (FP) of
elliptical g... | 1995-08-28 | 2009-10-28 | [
"astro-ph"
] | M. A. Pahre, S. G. Djorgovski, and R. R. de Carvalho (Palomar
Observatory, Caltech) |
astro-ph/9508129 | Evolution of the Ly$\alpha$ forest: a consistent picture | We study the evolution with redshift of the number density of Ly$\alpha$
clouds in a CDM model using numerical simulations including photo-ionization
and cooling of the baryonic component. The photo-ionizing flux is consistently
taken as proportional to the rate at which material cools below 5000~K in the
simulation. T... | 1995-08-28 | 2019-08-17 | [
"astro-ph"
] | Jan P. M\"ucket, Patrick Petitjean, Ronald E. Kates, R\"udiger
Riediger |
astro-ph/9508132 | Observational Evidence for a Bar in the Milky Way | Evidence from a variety of sources points towards the existence of a bar in
the central few kpc of the Galaxy. The measurements roughly agree on the
direction of the bar major axis, but other parameters (axis ratio, size,
pattern speed) are still poorly determined. Current dynamical models are
limited by the quality of... | 1995-08-28 | 2008-02-03 | [
"astro-ph"
] | Konrad Kuijken |
astro-ph/9508131 | New "Einstein Cross" Gravitational Lens Candidates in HST WFPC2 Survey
Images | We report the serendipitous discovery of ``Einstein cross'' gravitational
lens candidates using the Hubble Space Telescope. We have so far discovered two
good examples of such lenses, each in the form of four faint blue images
located in a symmetric configuration around a red elliptical galaxy. The high
resolution of H... | 1995-08-28 | 2009-10-28 | [
"astro-ph"
] | Kavan U. Ratnatunga, Eric J. Ostrander, Richard E. Griffiths, and
Myungshin Im (HST Medium Deep Survey, Johns Hopkins University, Baltimore,
MD) |
astro-ph/9508125 | A new method for accurate velocity statistics estimation | We introduce two new methods to obtain reliable velocity field statistics
from N-body simulations, or indeed from any general density and velocity
fluctuation field sampled by discrete points. These methods, the {\it Voronoi
tessellation method} and {\it Delaunay tessellation method}, are based on the
use of the Vorono... | 1995-08-26 | 2017-03-08 | [
"astro-ph"
] | Francis Bernardeau and Rien van de Weygaert |
astro-ph/9508124 | Modelling the Nonlinear Gravitational Clustering in the Expanding
Universe | The gravitational clustering of collisionless particles in an expanding
universe is modelled using some simple physical ideas. I show that it is indeed
possible to understand the nonlinear clustering in terms of three well defined
regimes: (1) linear regime (2) quasilinear regime which is dominated by
scale-invariant r... | 1995-08-26 | 2016-06-08 | [
"astro-ph"
] | T.Padmanabhan |
astro-ph/9508126 | Wandering in the Background: A CMB Explorer | We develop and examine the principles governing the formation of distortions
in the cosmic microwave background. Distortions in the frequency or spectral
distribution of the background probe the thermal history of the universe
whereas those in the angular temperature distribution probe its dynamics and
geometry. Stress... | 1995-08-26 | 2009-07-17 | [
"astro-ph"
] | Wayne Hu (UC Berkeley, Ias) |
astro-ph/9508123 | Infimum Microlensing Amplification of the Maximum Number of Images of
$n$-point Lens Systems | The total amplification of a source inside a caustic curve of a binary lens
is no less than 3. Here we show that the infimum amplification 3 is satisfied
by a family of binary lenses where the source position is at the mid-point
between the lens positions independently of the mass ratio which parameterizes
the family. ... | 1995-08-26 | 2016-08-30 | [
"astro-ph"
] | Sun Hong Rhie (IGPP/LLNL) |
astro-ph/9508121 | Structure formation: Models, Dynamics and Status | The constraints on the models for the structure formation arising from
various cosmological observations at different length scales are reviewed. The
status of different models for structure formation is examined critically in
the light of these observations. | 1995-08-25 | 2007-05-23 | [
"astro-ph"
] | T.Padmanabhan |
astro-ph/9508122 | Distances to Nearby Galaxies: Combining Fragmentary Data Using Four
Different Methods | The primary distance indicators are established in our Galaxy and the Local
Group. There are at least four different methods which give good distances:
methods using proper motions, RR Lyraes, Cepheid variables, and Type II
supernovae. However the data on independent distances is very fragmentary, due
partly to nature ... | 1995-08-25 | 2009-10-28 | [
"astro-ph"
] | Dragan Huterer (MIT), Dimitar D. Sasselov (CfA), and Paul L. Schechter
(MIT) |
astro-ph/9508117 | Inverse Dynamical Population Synthesis and Star Formation | We investigate the hypothesis that stars form in aggregates of binary systems
and that the dynamical evolution of these aggregates leads to the observed
properties of binary stars in the Galactic field. We assume that the initial
distribution of periods is flat in logP, where P is the orbital period in days,
and 3<logP... | 1995-08-25 | 2015-06-24 | [
"astro-ph"
] | Pavel Kroupa |
astro-ph/9508118 | Fast Rotation of Neutron Stars | We show that for realistic equations of state of dense matter, the universal
proportionality factor relating the maximum rotation rate of neutron stars due
to mass-shedding limit to the mass and radius of maximum allowable mass
configuration of non-rotating models results from a universal proportionality
between masses... | 1995-08-25 | 2009-10-28 | [
"astro-ph"
] | J.-P. Lasota, P. Haensel, and M.A. Abramowicz |
astro-ph/9508120 | Non-Flat Power Spectra in the CDM Model | Standard inflation with one scalar field produces primordial perturbations
with a nearly flat ('Harrison-Zeldovich') power spectrum. Here we consider
first, a double inflation spectrum, and second, a massive scalar field with an
interaction potential which mimics an early quartic interaction, but fading
away at a chara... | 1995-08-25 | 2016-08-30 | [
"astro-ph"
] | Lutz V. Semig, Volker Mueller |
astro-ph/9508116 | On the deprojection of axisymmetric bodies | Axisymmetric density distributions are constructed which are invisible when
viewed from a range of inclination angles $i$. By adding such distributions to
a model galaxy, it can be made either disky or boxy without in any way
affecting its projected image. As the inclination of a galaxy decreases from
edge-on to face o... | 1995-08-25 | 2015-06-24 | [
"astro-ph"
] | Ortwin Gerhard (Astron.Inst, Univ.Basel, CH) and James Binney
(Dpt.Theoret.Phys., Oxford, UK) |
astro-ph/9508115 | On the deprojection of the Galactic bulge | An algorithm is developed and tested for the problem posed by photometric
observations of the bulge of the Milky Way. The latter subtends a non-trivial
solid angle on the sky, and we show that this permits inversion of the
projected brightness distribution under the assumption that the bulge has three
orthogonal mirror... | 1995-08-25 | 2015-06-24 | [
"astro-ph"
] | James Binney (Dpt.Theoret.Phys., Oxford, UK) and Ortwin Gerhard
(Astron.Inst, Univ.Basel, CH) |
astro-ph/9508119 | Bar Formation, Evolution and Destruction | I review the various mechanisms for creating bars in rotating stellar disks,
and conclude that the swing-amplified feed-back loop, which produces rapidly
tumbling bars, remains the most probable. The bar continues to evolve after its
formation in a number of ways; here I discuss what appears to be inevitable
thickening... | 1995-08-25 | 2007-05-23 | [
"astro-ph"
] | J A Sellwood (Rutgers University) |
astro-ph/9508114 | Local Approximations to the Gravitational Collapse of Cold Matter | We investigate three different local approximations for nonlinear
gravitational instability in the framework of cosmological Lagrangian fluid
dynamics of cold dust. They include the Zel'dovich approximation (ZA), the
``non-magnetic'' approximation of Bertschinger \& Jain (1994, NMA), and a new
``local tidal'' approxima... | 1995-08-24 | 2011-07-19 | [
"astro-ph",
"gr-qc"
] | Lam Hui and Edmund Bertschinger |
astro-ph/9508109 | Simulation of microlensing lightcurves by combining contouring and
rayshooting | The contouring methods described by Lewis et al. (1993) and Witt (1993) are
very efficient and elegant for obtaining the magnification of a point source
moving along a straight track in the source plane. The method is, however, not
very efficient for extended sources, because the amplification needs to be
computed for ... | 1995-08-24 | 2007-05-23 | [
"astro-ph"
] | S. V. H. Haugan (Institute of Theoretical Astrophysics, University of
Oslo) |
astro-ph/9508108 | A Rigorous Proof of the Inflationary Spectrum | Fundamental formulae representing the density perturbation spectrums
generated in inflationary scenarios are rigorously proved. Quantum fluctuations
as initial conditions for structure generation in some inflationary era can be
calculated in general scale. Thus, we could avoid the matching of the large and
the small sc... | 1995-08-24 | 2008-11-26 | [
"astro-ph",
"gr-qc"
] | J. Hwang |
astro-ph/9508113 | Low threshold particle arrays | While atmospheric Cherenkov telescopes have a small field of view and a small
duty fraction, arrays of particle detectors on ground have a 1\,sr field of
view and a 100% duty fraction. On the other hand, particle detector arrays have
a much higher energy threshold and an inferior hadron rejection as compared to
Cherenk... | 1995-08-24 | 2009-10-28 | [
"astro-ph"
] | K. Bernl\"ohr (Max-Planck-Institut f\"ur Kernphysik, Heidelberg) |
astro-ph/9508107 | The MACHO Data Pipeline | The MACHO experiment is searching for dark matter in the halo of the Galaxy
by monitoring more than 20 million stars in the LMC and Galactic bulge for
gravitational microlensing events. The hardware consists of a 50 inch
telescope, a two-color 32 megapixel ccd camera, and a network of computers. On
clear nights the sys... | 1995-08-24 | 2007-05-23 | [
"astro-ph"
] | T. S. Axelrod (MSSSO and LLNL), R. A. Allsman (ANUSF), P. J. Quinn
(ESO), D. P. Bennett (CfPA), K. C. Freeman, B.A. Peterson, A. W. Rodgers
(MSSSO), C. Alcock, K. H. Cook (LLNL), K. Griest (UCSD), S. L. Marshall, M.
R. Pratt, C. W. Stubbs (UW), and W. Sutherland (Oxford) |
astro-ph/9508112 | Separating intrinsic and microlensing variability using parallax
measurements | In gravitational lens systems with 3 or more resolved images of a quasar, the
intrinsic variability may be unambiguously separated from the microlensing
variability through parallax measurements from 3 observers when there is no
relative motion of the lens masses (Refsdal 1993). In systems with fewer than 3
resolved im... | 1995-08-24 | 2007-05-23 | [
"astro-ph"
] | S. V. H. Haugan (Institute of Theoretical Astrophysics, University of
Oslo) |
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