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/9305013 | Molecular Clouds Close to the Galactic Center | We demonstrate that the accretion disk model for the Galactic Center region
by Linden et al (1993a) is applicable for at least one order of magnitude in
radius from the Galactic Center (10 ... 100 pc). The viscosity $\nu$ is shown
to be weakly dependent on the radius $s$: $\nu \sim s^{0.4}$. Finally, we
discuss the inf... | 1993-05-12 | 2007-05-23 | [
"astro-ph"
] | Peter L. Biermann, Wolfgang J. Duschl, Susanne von Linden |
astro-ph/9305012 | The Discovery of Two FU Orionis Objects in L1641 | We have obtained spectra of the reflection nebulosity illuminated by two
heavily embedded IRAS sources in the L1641 molecular cloud, Re 50 and IC 430
(V883 Ori). Examination of these spectra in combination with their other
properties indicates that these objects are FU Orionis objects. Our spectrum of
L1551 IRS 5 confi... | 1993-05-11 | 2009-10-22 | [
"astro-ph"
] | Karen M. Strom and Stephen E. Strom |
astro-ph/9305010 | Mixed Dark Matter from Axino Distribution | We study the possibility of mixed dark matter obtained through the phase
space distribution of a single particle. An example is offered in the context
of SUSY models with a Peccei-Quinn symmetry. Axinos in the 100 keV range can
naturally have both thermal and non-thermal components. The latter one arises
from the light... | 1993-05-11 | 2009-10-22 | [
"astro-ph"
] | S.A. Bonometto, F. Gabbiani, A. Masiero |
astro-ph/9305009 | Testing for Gaussianity Through the Three Point Temperature Correlation
Function | One of the crucial aspects of density perturbations that are produced by the
standard inflation scenario is that they are Gaussian where seeds produced by
topological defects tend to be non-Gaussian. The three point correlation
function of the temperature anisotropy of the cosmic microwave background
radiation (CBR) pr... | 1993-05-09 | 2009-10-22 | [
"astro-ph"
] | Xiaochun Luo and D.N. Schramm |
astro-ph/9305007 | Large-Scale Clustering in Bubble Models | We analyze the statistical properties of bubble models for the large-scale
distribution of galaxies. To this aim, we realize static simulations, in which
galaxies are mostly randomly arranged in the regions surrounding bubbles. As a
first test, we realize simulations of the Lick map, by suitably projecting the
three-di... | 1993-05-07 | 2015-06-24 | [
"astro-ph"
] | Luca Amendola & Stefano Borgani |
astro-ph/9305008 | Statistics of N-body Simulations I. Equal Masess Before Core Collapse | We study the dynamical evolution of idealised stellar systems by averaging
results from many $N$-body simulations, each having modest numbers of stars.
For isolated systems with stars of uniform mass, we discuss aspects of
evolution up to the point of core collapse: relaxation and its $N$-dependence,
the evolution of t... | 1993-05-07 | 2015-06-24 | [
"astro-ph"
] | Mirek Giersz and Douglas C. Heggie |
astro-ph/9305006 | A Hydrodynamical Analysis of the Burning of a Neutron Star | The burning of a neutron star by strange matter is analyzed using
relativistic combustion theory with a planar geometry. It is shown that such
burning is probably neither slow combustion nor simple detonation. Fast
combustion without detonation is possible under certain circumstances, but
would involve very efficient h... | 1993-05-07 | 2009-10-22 | [
"astro-ph"
] | H. T. Cho, K. -W. Ng, and Achilles D. Speliotopoulos |
astro-ph/9305005 | AGN and galactic sites of cosmic ray origin | We review recent progress in our understanding of the physics of energetic
particles in our Galaxy, in active galaxies such as starburst galaxies, in
active galactic nuclei and in the jets and radio hot spots of powerful radio
galaxies and radioloud quasars. We propose that cosmic rays originate mainly in
three sites, ... | 1993-05-06 | 2016-10-26 | [
"astro-ph"
] | Peter L. Biermann (Max-Planck-Institut fuer Radioastronomie, Bonn,
Germany) |
astro-ph/9305003 | Cosmic Rays, II. Evidence for a magnetic rotator Wolf Rayet star origin | Based on 1) a conjecture about the mean free path for particle scattering in
perpendicular shock geometries, and 2) a model for Wolf Rayet star winds, we
argue that explosions of Wolf Rayet stars can lead through diffusive particle
acceleration to particle energies up to 3 10^9 GeV. As a test we first
demonstrate that ... | 1993-05-06 | 2007-05-23 | [
"astro-ph"
] | Peter L. Biermann (1) and Joseph P. Cassinelli (2) ((1)
Max-Planck-Institut fuer Radioastronomie, Bonn, Germany, (2) Department for
Astronomy, University of Wisconsin, Madison WI, USA) |
astro-ph/9305002 | Visibility of Gravitational Lenses and the Cosmological Constant Problem | Recent observations suggest appreciable star formation activity in early-type
galaxies down to redshift $z\sim 0.5$. If so, there is likely to be dust in
these galaxies. We consider the possibility that obscuration by dust can
reconcile the observed frequency of gravitational lensing of quasar images with
the considera... | 1993-05-06 | 2007-05-23 | [
"astro-ph"
] | M. Fukugita and P. J. E. Peebles |
astro-ph/9305004 | Modelling Non-Axisymmetric Bow Shocks | I present an extension of the thin layer approximation to non-axisymmetric
bow shocks. By choosing a suitable set of curvilinear coordinates that matches
the geometry of a generally distorted bow shock surface, I derive the fluid
equations for the flow. Analytical expansions are given for the matter flow
near the bow s... | 1993-05-06 | 2007-05-23 | [
"astro-ph"
] | Rino Bandiera |
astro-ph/9305001 | Large-scale Polarization of the Cosmic Microwave Background Radiation | The anisotropy and polarization of the cosmic microwave background radiation
(CMBR) induced by the scalar and tensor metric perturbations are computed in
the long-wavelength limit. It is found that the large-scale polarization of
CMBR induced by the decaying tensor mode can reach a few percents. This is
different from ... | 1993-05-03 | 2009-10-22 | [
"astro-ph"
] | Ka Lok Ng and Kin-Wang Ng |
astro-ph/9304029 | Tidally Induced Elongation and Alignments of Galaxy Clusters | We show that tidal interaction among galaxy clusters can account for their
observed alignments and very marked elongation and, consequently, that these
characteristics of clusters are actually consistent with them being formed in
hierarchical clustering. The well-established distribution of projected axial
ratios of cl... | 1993-04-30 | 2014-10-13 | [
"astro-ph"
] | Eduard Salvador-Sole and Jose M. Solanes |
astro-ph/9304028 | Mass Spectrum and Velocity Dispersions During Planetesimals Accumulation
- II - Fragmentation | Fragmentation of the planetesimals is found to play a role whose importance
is greater than previously believed and depends on the average characteristic
size of the primordial planetesimals but not on their mass distribution. In the
small size range the mass spectrum is strongly modified with the formation of a
small ... | 1993-04-29 | 2009-10-22 | [
"astro-ph"
] | P. Barge and R. Pellat |
astro-ph/9304027 | Hydrodynamic Instability and Coalescence of Binary Neutron Stars | We study the importance of hydrodynamic effects on the evolution of
coalescing binary neutron stars. Using an approximate energy functional
constructed from equilibrium solutions for polytropic binary configurations, we
incorporate hydrodynamic effects into the calculation of the orbital decay
driven by gravitational w... | 1993-04-28 | 2009-10-22 | [
"astro-ph"
] | D. Lai, F. A. Rasio, and S. L. Shapiro |
astro-ph/9304025 | Lensing of Invisible Stars by Brown Dwarfs | To detect brown dwarfs in the dark galactic halo through gravitational
lensing, experiments follow the luminosity of millions of stars to observe a
few lensing events par year. The luminosity of a star too faint to be
continuously followed can be temporarily increased above the detection limit by
a lensing. The detecti... | 1993-04-28 | 2007-05-23 | [
"astro-ph"
] | Alain Bouquet |
astro-ph/9304026 | Kinematic Signature of a Rotating Bar Near a Resonance | There have been several recent suggestions that the Milky Way has rotating
bar-like features based on HI and star count data. In this paper, I show that
such features cause distinctive stellar kinematic signatures near OLR and ILR.
The effects of these resonances may be observable far from the peak density of
the patte... | 1993-04-28 | 2009-10-22 | [
"astro-ph"
] | Martin D. Weinberg |
astro-ph/9304024 | Eigenfrequencies of Radial Pulsations of Strange Quark Stars | We calculate the range of eigenfrequencies of radial pulsations of stable
strange quark stars, using the general relativistic pulsation equation and
adopting realistic equation of state for degenerate strange quark matter. | 1993-04-27 | 2009-10-22 | [
"astro-ph"
] | B. Datta, Pradip K. Sahu, J. D. Anand and A. Goyal |
astro-ph/9304023 | MACHOs in a Flattened Halo | If massive compact halo objects (\ms) are detected in ongoing searches, then
\tsmctlmc, the ratio of the optical depth toward the Small and Large Magellanic
Clouds, will be a robust indicator of the flattening of the Galactic dark
matter halo. For a spherical halo, \tsmctlmc\ is about 1.45, independent of
details of th... | 1993-04-26 | 2009-10-22 | [
"astro-ph"
] | Penny D. Sackett and Andrew Gould |
astro-ph/9304022 | Power Spectrum Analysis of Three-Dimensional Redshift Surveys | We develop a general method for power spectrum analysis of three dimensional
redshift surveys. We present rigorous analytical estimates for the statistical
uncertainty in the power and we are able to derive a rigorous optimal weighting
scheme under the reasonable (and largely empirically verified) assumption that
the l... | 1993-04-26 | 2011-05-05 | [
"astro-ph"
] | Hume A. Feldman, Nick Kaiser and John A. Peacock |
astro-ph/9304021 | Quark Neutron Layer Stars | Typical nuclear equations of state and a quark bag model, surprisingly, allow
compact stars with alternate layers of neutrons and quarks. One can determine
on the basis of the Gibbs free energy which phase, nuclear or quark, is
energetically favorable. Using the nuclear equation of state of Wiringa, and a
quark equatio... | 1993-04-24 | 2009-10-22 | [
"astro-ph"
] | Philip A. Carinhas |
astro-ph/9304020 | Neutrino Emissivity of Degenerate Quark Matter | An exact numerical calculation of neutrino emissivity of two and three
flavour quark matter have been carried out. We find that the neutrino
emissivity obtained from the Iwamoto formula is in qualitative agreement with
our calculation for two flavour quark matter. For three flavour case, on the
other hand we find that ... | 1993-04-22 | 2007-05-23 | [
"astro-ph"
] | Sanjay K. Ghosh, S. C. Phatak and Pradip K. Sahu |
astro-ph/9304019 | Quark Stars in Chiral Colour Dielectric Model | The nonlinear chiral extension of colour dielectric model has been used in
the present work to study the properties of quark stars. Assuming that the
square of meson fields develop nonzero expectation value, the thermodynamic
potential for charge neutral interacting two and three flavour quark matter, in
beta equilibri... | 1993-04-22 | 2015-06-24 | [
"astro-ph"
] | Sanjay K. Ghosh and Pradip K. Sahu |
astro-ph/9304018 | The Fundamental Plane of Galaxy Clusters | Velocity dispersion $\sigma$, radius $R$ and luminosity $L$ of elliptical
galaxies are known to be related, leaving only two degrees of freedom and
defining the so-called ``fundamental plane". In this {\em Letter} we present
observational evidence that rich galaxy clusters exhibit a similar behaviour.
Assuming a relati... | 1993-04-20 | 2016-06-08 | [
"astro-ph"
] | R. Schaeffer, S. Maurogordato, A. Cappi, F. Bernardeau |
astro-ph/9304017 | Inflation and Mixed Dark Matter Models | Recent large scale structure observations, including COBE, have prompted many
authors to discuss modifications of the standard Cold Dark Matter model. Two of
these, a tilted spectrum and a gravitational wave contribution to COBE, are at
some level demanded by theory under the usual assumption that inflation
generates t... | 1993-04-18 | 2015-06-24 | [
"astro-ph",
"hep-ph"
] | Andrew R Liddle and David H Lyth |
astro-ph/9304015 | Indications for Gamma-Ray Bursts Originating within an Extended Galactic
Halo ? | If a substantial fraction of the observed gamma-ray bursts originates within
an extended Galactic halo then their spatial distribution should deviate
slightly from spherical symmetry in a very particular way which involves
features both in the bursts' angular and radial distributions.
This conclusion is based on vari... | 1993-04-16 | 2007-05-23 | [
"astro-ph"
] | Eyal Maoz |
astro-ph/9304016 | On the Bimodal Distribution of Gamma-Ray Bursts | Kouveliotou et al. (1993) recently confirmed that gamma-ray bursts are
bimodal in duration. In this paper we compute the statistical properties of the
short ($\le 2$~s) and long ($>2$~s) bursts using a method of analysis that
makes no assumption regarding the location of the bursts, whether in the Galaxy
or at a cosmol... | 1993-04-16 | 2009-10-22 | [
"astro-ph"
] | Shude Mao, Ramesh Narayan and Tsvi Piran |
astro-ph/9304014 | The First Data from the MACHO Experiment | MAssive Compact Halo Objects such as brown dwarfs, Jupiters, and black holes
are prime candidates to comprise the dark halo of our galaxy. Paczynski noted
that objects (dubbed MACHOs) with masses in the range $10^{-6}M_\odot < M
\simlt 100 M_\odot$. can be detected via gravitational microlensing of stars in
the Magella... | 1993-04-15 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | D. P. Bennett |
astro-ph/9304013 | A Green Function for Metric Perturbations due to Cosmological Density
Fluctuations | We study scalar perturbations to a Robertson-Walker cosmological metric in
terms of a pseudo-Newtonian potential, which emerges naturally from the
solution of the field equations. This potential is given in terms of a Green
function for matter density fluctuations of arbitrary amplitude whose time and
spatial dependenc... | 1993-04-14 | 2009-10-22 | [
"astro-ph"
] | Mark W Jacobs, Eric V Linder, and Robert V Wagoner |
astro-ph/9304011 | Mass Loss In M67 Giants: Evidence From Isochrone Fitting | We present a study of the stellar content of the open cluster M67. We have
computed new evolutionary sequences of stellar models with solar abundance that
cover all phases of evolution from the Zero-Age Main Sequence to the bright end
of the Asymptotic Giant Branch (AGB). We examine the fit between the calculated
and t... | 1993-04-12 | 2009-10-22 | [
"astro-ph"
] | Michael J. Tripicco, Ben Dorman and Roger A. Bell |
astro-ph/9304012 | Inflation After COBE: Lectures on Inflationary Cosmology | In these lectures I review the standard hot big-bang cosmology, emphasizing
its successes, its shortcomings, and its major challenge---a detailed
understanding of the formation of structure in the Universe. I then discuss the
motivations for---and the fundamentals of---inflationary cosmology,
particularly emphasizing t... | 1993-04-12 | 2007-05-23 | [
"astro-ph",
"hep-ph"
] | Michael S. Turner |
astro-ph/9304010 | Errata in Binney and Tremaine, "Galactic Dynamics" | This paper contains all known errata in the book "Galactic Dynamics". | 1993-04-10 | 2007-05-23 | [
"astro-ph"
] | J. Binney and S. Tremaine |
astro-ph/9304009 | The Mass Function of Nearby Galaxy Clusters | We present the distribution of virial masses for nearby galaxy clusters, as
obtained from a data-set of 75 clusters, each having at least 20 galaxy members
with measured redshifts within 1 Abell radius. After having accounted for
problems of incompleteness of the data-set, we fitted a power-law to the
cluster mass dist... | 1993-04-08 | 2009-10-22 | [
"astro-ph"
] | A. Biviano, M. Girardi, G. Giuricin, F. Mardirossian, and M. Mezzetti |
astro-ph/9304008 | The 9 Aurigae System | The F0 V star 9 Aur A exhibits an irregular variability of amplitude $\approx
$0.1 magnitude at optical wavelengths. The variations are too slow for it to be
a $\delta$ Scuti-type star. There is no evidence for a close, interacting
companion or ring of dust, either from infrared, ultraviolet, or speckle data.
The photo... | 1993-04-07 | 2015-06-24 | [
"astro-ph"
] | K. Krisciunas, C. Aspin, T. R. Geballe, H. Akazawa, C. F. Claver, E.
F. Guinan, H. J. Landis, K. D. Luedeke, N. Ohkura, O. Ohshima, and D. R.
Skillman |
astro-ph/9304007 | The Neutrino Ball Model of a Quasar | It is suggested that the nonorthodox model of a quasar as a neutrino ball
described in terms of the standard model extended by adding right-handed
neutrinos and the Majorana scalar field can be presented in order to explain a
quasar as a body of weak interacting neutrinos. Neutrino interaction with the
scalar Majorana ... | 1993-04-07 | 2019-08-17 | [
"astro-ph"
] | R.Manka, I.Bednarek, D.Karczewska |
astro-ph/9304005 | Element Diffusion in the Solar Interior | We study the diffusion of helium and other heavy elements in the solar
interior by solving exactly the set of flow equations developed by Burgers for
a multi-component fluid, including the residual heat-flow terms. No
approximation is made concerning the relative concentrations and no restriction
is placed on the numbe... | 1993-04-06 | 2009-10-22 | [
"astro-ph"
] | Anne A. Thoul, John N. Bahcall and Abraham Loeb |
astro-ph/9304006 | M51 Stripped To Its Bones | We present optical and IR surface photometry of M51 (NGC~5194) at B~V~R~I~J~K
and CO$(2.3\mu )$. These data are used to establish whether K-band ($2.2\mu$)
images of spiral galaxies provide reliable maps of stellar surface mass density
features such as massive spiral arms or bars. The main distorting agents in the
mapp... | 1993-04-06 | 2007-05-23 | [
"astro-ph"
] | Hans-Walter Rix and Marcia J. Rieke |
astro-ph/9304004 | Deep Kinematics and Dynamics of Edge-on S0 Galaxies. I. NGC 3115 | As a first step of a program aimed to the detection of dark matter (or radial
variations of M/L) in early-type galaxies, we report deep spectroscopic
observations of the bulge-dominated edge-on S0 galaxy NGC 3115, made at ESO, La
Silla, using EFOSC at the 3.6m telescope and EMMI at NTT. Such observations
allow measurem... | 1993-04-05 | 2007-05-23 | [
"astro-ph"
] | M. Capaccioli, E. Cappellaro, E.V. Held, and M. Vietri |
astro-ph/9304002 | Higher Order Moments of the Matter Distribution in Scale--Free
Cosmological Simulations with Large Dynamic Range | We calculate reduced moments $\overline \xi_q$ of the matter density
fluctuations, up to order $q=5$, from counts in cells produced by
Particle--Mesh numerical simulations with scale--free Gaussian initial
conditions. We use power--law spectra $P(k) \propto k^n$ with indices
$n=-3,~-2,~-1,~0,~1$. Due to the supposed ab... | 1993-04-02 | 2009-10-22 | [
"astro-ph"
] | F. Lucchin, S. Matarrese, A.L. Melott and L. Moscardini |
astro-ph/9304003 | Multiwavelength Monitoring of the BL Lac Object PKS 2155-304 I. The IUE
Campaign | Daily monitoring of PKS 2155-304 with the IUE satellite throughout November
1991 has revealed dramatic, large-amplitude, rapid variations in the
ultraviolet flux of this BL Lac object. Many smaller, rapid flares are
superimposed on a general doubling of the intensity. During the five-day period
when sampling was roughl... | 1993-04-02 | 2009-10-22 | [
"astro-ph"
] | C.M. Urry, et al |
astro-ph/9304001 | Do Observations Exclude Gamma-ray Bursts Originating In the Oort Cloud
Of Comets? | As long as there is no distance indicator to the sources of gamma-ray bursts
all possible sources which are isotropically distributed should remain under
consideration. This is why the Oort cloud of comets is kept on the list. We use
the available data on the bursts' distribution of (the BATSE catalogue), and
the Catal... | 1993-04-01 | 2009-10-22 | [
"astro-ph"
] | Eyal Maoz |
astro-ph/9303019 | The Cold Dark Matter Density Perturbation | This is a review of the Cold Dark Matter model of structure formation, and
its variants. The approach is largely from first principles, the main aim being
to impart a basic understanding of the relevant theory with an eye to the
likely intense activity of the next few years, but the current observational
status of the ... | 1993-03-31 | 2010-11-30 | [
"astro-ph",
"gr-qc",
"hep-ph"
] | Andrew R Liddle and David H Lyth |
astro-ph/9303018 | Laser Interferometric Detectors of Gravitational Waves | A laser interferometric detector of gravitational waves is studied and a
complete solution (to first order in the metric perturbation) of the coupled
Einstein-Maxwell equations with appropriate boundary conditions for the light
beams is determined. The phase shift, the light deflection and the rotation of
the polarizat... | 1993-03-31 | 2010-04-06 | [
"astro-ph"
] | F. I. Cooperstock and V. Faraoni |
astro-ph/9303020 | Null Geodesics in Perturbed Spacetimes | We present a generalization and refinement of the Sachs-Wolfe technique which
unifies many of the approaches taken to date and clarifies both the physical
and the mathematical character of the method. We illustrate the formalism with
a calculation of the behavior of light passing a moving lens on a Minkowski
background... | 1993-03-31 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Ted Pyne and Mark Birkinshaw |
astro-ph/9303017 | Properties of High-Redshift Lyman Alpha Clouds II. Statistical
Properties of the Clouds | Curve of growth analysis, applied to the Lyman series absorption ratios
deduced in our previous paper, yields a measurement of the logarithmic slope of
distribution of \Lya\ clouds in column density $N$. The observed exponential
distribution of the clouds' equivalent widths $W$ is then shown to require a
broad distribu... | 1993-03-29 | 2009-10-22 | [
"astro-ph"
] | William H. Press and George B. Rybicki |
astro-ph/9303016 | Properties of High-Redshift Lyman Alpha Clouds I. Statistical Analysis
of the SSG Quasars | Techniques for the statistical analysis of the \Lya\ forest in high redshift
quasars are developed, and applied to the low resolution (25 \AA) spectra of 29
of the 33 quasars in the Schneider-Schmidt-Gunn (SSG) sample.We find that the
mean absorption increases with $z$ approximately as a power law
$(1+z)^{\gamma+1}$ wi... | 1993-03-29 | 2009-10-22 | [
"astro-ph"
] | William H. Press, George B. Rybicki, and Donald P. Schneider |
astro-ph/9303015 | Determination of pseudo-Goldstone boson-photon coupling by the
differential time delay of pulsar signals | Pseudo-Goldstone bosons couple with photons through a P and T violating
interaction of the form ${\cal {L_I}}=g_{a\gamma \gamma}~ a F\tilde F$. Strong
magnetic fields in rotating compact stars induce a non-zero ${\vec E}\cdot{\vec
B}$ outside the stellar surface which acts as a source for the pseudo-scalar
field. Pulsa... | 1993-03-27 | 2009-10-22 | [
"astro-ph"
] | Subhendra Mohanty and S.N.Nayak |
astro-ph/9303014 | The Imprint of Gravitational Waves on the Cosmic Microwave Background | Long-wavelength gravitational waves can induce significant temperature
anisotropy in the cosmic microwave background. Distinguishing this from
anisotropy induced by energy density fluctuations is critical for testing
inflationary cosmology and theories of large-scale structure formation. We
describe full radiative tran... | 1993-03-26 | 2009-09-25 | [
"astro-ph",
"hep-ph"
] | R. Crittenden, J.R. Bond, R.L. Davis, G. Efstathiou, P.J. Steinhardt |
astro-ph/9303013 | Cosmic Rays, III. The CR spectrum between 1 GeV and 10^4 GeV and the
radio emission from supernova remnants | We develop a theory to account for the cosmic ray spectrum between 1 GeV and
10^4 GeV following the earlier papers of this series. We use the basic concept
that the cosmic ray particles are accelerated in a supernova shock that travels
through the interstellar medium. Physically important ingredients besides the
presen... | 1993-03-25 | 2007-05-23 | [
"astro-ph"
] | Peter L. Biermann (1) and Richard G. Strom (2) ((1)
Max-Planck-Institut f"ur Radioastronomie, Bonn, Germany, (2) Netherlands
Foundation for Research in Astronomy, Radiosterrenwacht, Dwingeloo,
Netherlands) |
astro-ph/9303012 | Dynamics with a non-standard inertia-acceleration relation: an
alternative to dark matter | We investigate particle laws of motion derived from nonstandard kinetic
actions of a special form. We are guided by a phenomenological scheme--the
modified dynamics (MOND)--that imputes the mass discrepancy observed in
galactic systems to a departure from Newtonian dynamics below a certain
acceleration scale a0. In the... | 1993-03-23 | 2008-11-26 | [
"astro-ph",
"gr-qc"
] | M. Milgrom |
astro-ph/9303011 | Perturbation Spectra from Intermediate Inflation | We investigate models of `intermediate' inflation, where the scale factor
$a(t)$ grows as $a(t) = \exp (A t^f)$, $0 < f < 1$, $A$ constant. These
solutions arise as exact analytic solutions for a given class of potentials for
the inflaton $\phi$. For a simpler class of potentials falling off as a power
of $\phi$ they a... | 1993-03-23 | 2009-12-30 | [
"astro-ph"
] | John D Barrow and Andrew R Liddle |
astro-ph/9303010 | Approximate Self-Consistent Models for Tidally Truncated Star Clusters | This paper generalises King's models for tidally truncated star clusters by
including approximately the non-spherical symmetry of the tidal field and the
resulting non-spherical distortion of the cluster. | 1993-03-19 | 2007-05-23 | [
"astro-ph"
] | D.C. Heggie & N. Ramamani |
astro-ph/9303009 | Cosmic Variance in CMB Anisotropies: From $1^{\circ}$ to COBE | Cosmic Microwave Background (CMB) anisotropies that result from quantum
fluctuations during inflation are explored and the impact of their ``cosmic
variance'' on the ability to use existing data to probe inflationary models is
studied. We calculate the rms temperature fluctuation, and its cosmic variance,
for a number ... | 1993-03-19 | 2016-08-30 | [
"astro-ph",
"hep-ph"
] | Martin White, Lawrence M. Krauss and Joseph Silk |
astro-ph/9303008 | Threshold Star Formation Effects in the Peculiar Galaxy Arp~10 (=~VV
362) | We present images of the peculiar galaxy Arp~10 which reveal two rings of
concurrent star formation. Apart from a bright ring visible on early
photographs of the system, an even brighter inner ring of \ion{H}{2} regions is
found within the nuclear bulge of the galaxy. A very faint ring-arc of
\ion{H}{2} regions is also... | 1993-03-17 | 2014-10-13 | [
"astro-ph"
] | V. Charmandaris, P. N. Appleton, and A. P. Marston |
astro-ph/9303007 | The Local Galaxy Density and the Bars of Spiral Galaxies | Using a variety of parameters of local galaxy density, we have examined the
effects of the environmental density on the presence of bar structures in
spiral galaxies of various morphological types. For an extensive sample of
nearby galaxies, listed in the ``Nearby Galaxies Catalogue'' (Tully, 1988a), we
have found that... | 1993-03-15 | 2009-10-22 | [
"astro-ph"
] | G. Giuricin, F. Mardirossian, M. Mezzetti, P. Monaco |
astro-ph/9303006 | Cosmic Rays IV. The spectrum and chemical composition above $10^4$ GeV | Using the concept developed in earlier papers, that the cosmic rays originate
in three different main sites, a) the normal supernova explosions into the
interstellar medium, b) the supernova explosions into a stellar wind, and c)
powerful radio galaxies, we demonstrate in this paper that the spectrum and
chemical abund... | 1993-03-11 | 2007-05-23 | [
"astro-ph"
] | T. Stanev, P.L. Biermann, T.K. Gaisser |
astro-ph/9303005 | A Semi-Analytical Analysis of Texture Collapse | This study presents a simplified approach to studying the dynamics of global
texture collapse. We derive equations of motion for a spherically symmetric
field configuration using a two parameter ansatz. Then we analyse the effective
potential for the resulting theory to understand possible trajectories of the
field con... | 1993-03-10 | 2010-11-19 | [
"astro-ph",
"hep-ph"
] | Andrew T. Sornborger (Brown) |
astro-ph/9303004 | Early Cosmic Formation of Massive Black Holes | The evolution of nonlinear density fluctuations around the Jeans mass shortly
after cosmological recombination is analyzed using a 3D
hydrodynamics/dark--matter code. The Cosmic Background Radiation (CBR) exerts
Compton friction on free electrons due to peculiar velocities. The dynamics
therefore depends strongly on th... | 1993-03-09 | 2009-10-22 | [
"astro-ph"
] | M. Umemura, A. Loeb, and E. L. Turner |
astro-ph/9303003 | Blue Stragglers as Tracers of Globular Cluster Evolution | Blue stragglers are natural phenomena in star clusters. They originate
through mass transfer in isolated binaries, as well as through encounters
between two or more stars, in a complex interplay between stellar dynamics and
stellar evolution. While this interplay cannot be modeled quantitatively at
present, we will be ... | 1993-03-08 | 2007-05-23 | [
"astro-ph",
"hep-lat"
] | Piet Hut |
astro-ph/9303002 | The Masses of Two Binary Neutron Star Systems | The measurement or constraint of the masses of neutron stars and their binary
companions tests theories of neutron star structure and of pulsar formation and
evolution. We have measured the rate of the general relativistic advance of the
longitude of periastron for the pulsar PSR B1802$-$07:
$\dot\omega=0\fdg060\pm0\fd... | 1993-03-02 | 2009-10-22 | [
"astro-ph"
] | S. E. Thorsett (Caltech), Z. Arzoumanian (Princeton), M. M. McKinnon
(NRAO), and J. H. Taylor (Princeton) |
astro-ph/9303001 | Inflation and squeezed quantum states | The inflationary cosmology is analyzed from the point of view of squeezed
quantum states. As noted by Grishchuk and Sidorov, the amplification of quantum
fluctuations into macroscopic perturbations which occurs during cosmic
inflation is a process of quantum squeezing. We carefully develop the squeezed
state formalism ... | 1993-03-01 | 2010-04-08 | [
"astro-ph",
"gr-qc",
"hep-ph"
] | Andreas Albrecht, Pedro Ferreira, Michael Joyce and Tomislav Prokopec |
astro-ph/9302018 | Constraints on the Cosmic Rays in the Small Magellanic Cloud | We show that recent $\gamma$-ray observations of the Small Magellanic Cloud
with EGRET rule out a universal cosmic ray flux only at energies below $\approx
10$ GeV, while the observed diffuse X-ray and $\gamma$-ray background
radiations have already ruled out, by more than three orders of magnitude, a
universal extraga... | 1993-02-25 | 2009-10-22 | [
"astro-ph"
] | Arnon Dar, Ari Laor, and Abraham Loeb |
astro-ph/9302017 | The Rate of Supernovae. II. the Selection Effects and the Frequencies
Per Unit Blue Luminosity | We present new estimates of the observed rates of SNe determined with the
{\em control time} method applied to the files of observations of two long
term, photographic SN searches carried out at the Asiago and Sternberg
Observatories. Our calculations are applied to a galaxy sample extracted from
RC3, in which 65 SNe h... | 1993-02-25 | 2007-05-23 | [
"astro-ph"
] | E. Cappellaro, M. Turatto, Benetti, D.Yu. Tsvetkov, O.S. Bartunov and
I.N. Makarova |
astro-ph/9302016 | Angular Distribution of Clustersin Skewed CDM Models | We perform a detailed investigation of the statistical properties of the
projected distribution of galaxy clusters obtained in Cold Dark Matter (CDM)
models with both Gaussian and skewed primordial density fluctuations. We use
N-body simulations to construct a set artificial Lick maps. An objective
cluster--finding alg... | 1993-02-24 | 2015-06-24 | [
"astro-ph"
] | S.Borgani, P.Coles, L.Moscardini & M.Plionis |
astro-ph/9302015 | Skewness as a Test of Non-Gaussian Primordial Density Fluctuations | We investigate the evolution of the skewness of the distribution of density
fluctuations in CDM models with both Gaussian and non--Gaussian initial
fluctuations. We show that the method proposed by Coles \& Frenk (1991), which
uses the skewness of galaxy counts to test the hypothesis of Gaussian
primordial density fluc... | 1993-02-24 | 2015-06-24 | [
"astro-ph"
] | P. Coles, L. Moscardini, F. Lucchin, S. Matarrese, A. Messina |
astro-ph/9302014 | Angular Correlations of the X-Ray Background and Clustering of
Extragalactic X-Ray Sources | The information content of the autocorrelation function (ACF) of intensity
fluctuations of the X-ray background (XRB) is analyzed. The tight upper limits
set by ROSAT deep survey data on the ACF at arcmin scales imply strong
constraints on clustering properties of X-ray sources at cosmological distances
and on their co... | 1993-02-24 | 2009-10-22 | [
"astro-ph"
] | L. Danese, L. Toffolatti, A. Franceschini, J.M. Martin-Mirones and G.
De Zotti |
astro-ph/9302013 | On the Production of Scalar and Tensor Perturbations in Inflationary
Models | The amplitude and spectrum of the scalar and tensor perturbations depend upon
the shape of the inflationary potential in the small interval where the scalar
field responsible for inflation was between about 46 and 54 e-folds before the
end of inflation. By expanding the inflationary potential in a Taylor series in
this... | 1993-02-23 | 2008-11-26 | [
"astro-ph",
"hep-ph"
] | M.S. Turner |
astro-ph/9302012 | Large--Scale Angular Correlations in CDM Models | We generate artificial Lick maps using $N$--body simulations and compare the
angular correlation function, $w(\vartheta)$, measured from the simulations
with the APM correlation. For the Gaussian CDM model, neither the standard
biassed model nor a more evolved model (as suggested by the COBE data),
reproduce the correl... | 1993-02-23 | 2009-10-22 | [
"astro-ph"
] | L.Moscardini, S.Borgani, P.Coles, F.Lucchin, S.Matarrese and A.Messina |
astro-ph/9302011 | The 8-13 Micron Spectrum of Arp 299C | Arp 299C is a $5 \times 10^{10}$ \Lsun infrared source in the merging galaxy
system Arp 299. It is the most luminous object known that is not obviously
associated with a galaxy nucleus. Our data show that the 8--13 \mum spectrum of
Arp 299C has a strong \NeII emission line and emission features like those of
polycyclic... | 1993-02-19 | 2009-10-22 | [
"astro-ph"
] | C. C. Dudley and C. G. Wynn-Williams |
astro-ph/9302010 | The End for Extended Inflation? | This paper is based on a talk given by A R Liddle at the PASCOS/TEXAS meeting
in December 1992, and will appear in the proceedings. The central result is
that all known models of inflation which end in a first order phase transition
can be ruled out by combining galaxy surveys at a few tens of Mpc with the COBE
data (i... | 1993-02-18 | 2009-10-22 | [
"astro-ph",
"gr-qc",
"hep-ph"
] | A R Liddle and D H Lyth |
astro-ph/9302009 | Biasing and Hierarchical Statistics in Large-scale Structure | In the current paradigm there is a non-trivial bias expected in the process
of galaxy formation. Thus, the observed statistical properties of the galaxy
distribution do not necessarily extend to the underlying matter distribution.
Gravitational evolution of initially Gaussian seed fluctuations predicts that
the connect... | 1993-02-15 | 2009-10-22 | [
"astro-ph"
] | J.N.Fry and Enrique Gaztanaga |
astro-ph/9302008 | Gamma Ray Bursts and CETI | Gamma ray burst sources are isotropically distributed. They could be located
at distances $\sim 1000$ AU. (Katz \cite{JK92}) GRB signals have many narrow
peaks that are unresolved at the millisecond time resolution of existing
observations. \cite{JK87} CETI could use stars as gravitational lenses for
interstellar gamma... | 1993-02-10 | 2007-05-23 | [
"astro-ph"
] | Frank D. Smith Jr |
astro-ph/9302007 | The Least Action Principle And The Spin Of Galaxies In The Local Group | Using Peebles' least action principle, we determine trajectories for the
galaxies in the Local Group and the more massive galaxies in the Local
Neighbourhood. We deduce the resulting angular momentum for the whole of the
Local Group and study the tidal force acting on the Local Group and its
galaxies. Although Andromed... | 1993-02-10 | 2015-06-24 | [
"astro-ph"
] | A.M.Dunn and R.Laflamme |
astro-ph/9302006 | The Proton Blazar | Considering shock-accelerated protons in addition to electrons in a
synchrotron radio jet naturally produces the observed X- through gamma ray
continuum emission of flat-spectrum radio-loud AGN, whereas the corresponding
shock-accelerated electrons produce the infrared through optical continuum. All
of these emission c... | 1993-02-04 | 2008-02-03 | [
"astro-ph",
"hep-ph"
] | Karl Mannheim |
astro-ph/9302004 | Background Radiation | We present a short overview on the extragalactic background radiation from
radio to X-rays, with an eye to the relation to galaxy formation and
emphasizing on astrophysical backgrounds (as opposed to cosmological). As the
radio background, the wealth of data on source counts make possible reliable
estimations of the co... | 1993-02-04 | 2007-05-23 | [
"astro-ph"
] | G. De Zotti, A. Franceschini, L. Toffolatti, P. Mazzei and L. Danese |
astro-ph/9302005 | Extragalactic ultra high energy cosmic rays, II. Comparison with
experimental data | We compare the expected contribution of FR-II hot spots to the ultra-high
energy cosmic ray spectrum (Rachen & Biermann 1993, A&A in press, BB paper
astro-ph/9301010) to improved experimental results. We introduce a "world data
set" of UHE cosmic rays by comparing the data of various experiments,
extracting relative sy... | 1993-02-04 | 2011-05-12 | [
"astro-ph"
] | Joerg P. Rachen(1), Todor Stanev(2) and Peter L. Biermann(1) ((1)
Max-Planck-Institut f"ur Radiostronomie, Bonn, Germany; (2) Bartol Research
Institute, Newark DE, USA) |
astro-ph/9302003 | Dark Matter: Theoretical Perspectives | Talk presented at NAS Special Colloquium on Physical Cosmology | 1993-02-04 | 2015-06-24 | [
"astro-ph",
"hep-ph"
] | M.S. Turner |
astro-ph/9302002 | Dynamical Solutions to the Horizon and Flatness Problems | We discuss in some detail the requirements on an early-Universe model that
solves the horizon and flatness problems during the epoch of classical
cosmology ($t\ge t_i\gg 10^{-43}\sec$). We show that a dynamical resolution of
the horizon problem requires superluminal expansion (or very close to it) and
that a truly sati... | 1993-02-03 | 2009-12-30 | [
"astro-ph",
"hep-ph"
] | Yue Hu, Michael S. Turner, and Erick J. Weinberg |
astro-ph/9302001 | Angular Momentum Loss in Low Mass Accretion Disks | We review mechanisms for the transport of angular momentum in accretion disks
that are low mass, in the sense that the gravitational forces produced by the
material in these disks has a negligible effect on disk dynamics. There is no
established consensus on how this transport takes place. We note that for
phenomenolog... | 1993-02-03 | 2007-05-23 | [
"astro-ph"
] | ET Vishniac and PH Diamond |
astro-ph/9301012 | A Possible Forest of Emission Lines from Proto-galaxies | The possibility of detecting proto-galaxies in the UV band is pointed out,
assuming that galaxy formation occured at z $\sim 5-6$. It is shown that the
diffuse gas in collapsing galaxy sized objects with temperatures $\sim
10^{6\pm0.5}$ K, and with a modest amount of metallicity, should copiously
produce emission lines... | 1993-01-29 | 2016-06-08 | [
"astro-ph"
] | Biman Nath and David Eichler |
astro-ph/9301010 | Extragalactic ultra high energy cosmic rays, I. Contribution from hot
spots in FR-II galaxies | We consider the hot spots in FR-II galaxies as sites of first order Fermi
acceleration of protons to the highest energies observed in cosmic rays. We
estimate the attainable maximum energy in the hot spot region allowed by the
canonical physical conditions, which are found from radio-to-optical
observations (Meisenheim... | 1993-01-21 | 2011-05-23 | [
"astro-ph"
] | Joerg P. Rachen and Peter L. Biermann (Max-Planck-Institut fuer
Radioastronomie, Bonn, Germany) |
astro-ph/9301011 | Minimal Microwave Anisotropy from Perturbations Induced at Late Times | Aside from primordial gravitational instability of the cosmological fluid,
various mechanisms have been proposed to generate large-scale structure at
relatively late times, including, e.g., ``late-time'' cosmological phase
transitions. In these scenarios, it is envisioned that the universe is nearly
homogeneous at the ... | 1993-01-21 | 2009-10-22 | [
"astro-ph"
] | Andrew H. Jaffe, Albert Stebbins, and Joshua A. Frieman |
astro-ph/9301009 | Extended Co(7-6) Emission from Warm Gas in Orion | We mapped quiescent 807 GHz CO(7-6) emission from Orion along a strip in RA
extending from 0.7 pc west to 1.2 pc east of Ori theta 1C. The lines arise in
warm gas with T > 40 K. The line brightness temperature is > 160 K in the di-
rection of theta 1C, more than twice the dust temperature, and still exceeds 35
K more t... | 1993-01-18 | 2009-10-22 | [
"astro-ph"
] | J.E. Howe, D.T. Jaffe, E.N. Grossman, W.F. Wall, J.G. Mangum, and G.J.
Stacey |
astro-ph/9301008 | Cosmic Rays I.: The cosmic ray spectrum between 10 TeV and 3 EeV | I develop a theory to account for the cosmic ray spectrum. The essential
assumption is that, due to fast convective motions, the free mean path
perpendicular to the magnetic field is independent of energy and has the scale
of the thickness of the shocked layer. I use the basic concept, that the
energetic Cosmic Ray par... | 1993-01-15 | 2007-05-23 | [
"astro-ph"
] | Peter L. Biermann (Max Planck Institut fuer Radioastronomie, Bonn,
Germany) |
astro-ph/9301006 | The Evolution of the Globular Cluster System in a Triaxial Galaxy: Can a
Galactic Nucleus Form by Globular Cluster Capture? | Dynamical friction due to field stars and tidal disruption caused by a
central nucleus are crucial in determining the evolution of the globular
cluster system in an elliptical galaxy. In this paper I examine the possibility
that some of galactic nuclei have been formed by frictionally decayied globular
clusters moving ... | 1993-01-14 | 2009-10-22 | [
"astro-ph"
] | R. Capuzzo-Dolcetta |
astro-ph/9301007 | Gasdynamics of Relativistically Expanding Gamma-Ray Burst Sources:
Kinematics, Energetics, Magnetic Fields and Efficiency | We calculate both analytically and numerically the evolution of a highly
relativistic fireball through the stages of free expansion and coasting, and
determine the dependence of the thermodynamic and radiation variables in the
comoving and laboratory frames. Magnetic fields may have been important in the
original impul... | 1993-01-14 | 2009-10-22 | [
"astro-ph"
] | P. M\'esz\'aros, P. Laguna and M.J. Rees |
astro-ph/9301005 | Constraints on Dirac Neutrinos from SN 1987A | The Livermore Supernova Explosion Code was used to calculate the effect of a
massive Dirac neutrino on neutrino emission from SN 1987A in a fully
self-consistent manner. Spin-flip interactions lead to the copious emission of
sterile, right-handed neutrinos and cool the core faster than the observed
neutrino emission ti... | 1993-01-13 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | R. Mayle, D.N. Schramm, M.S. Turner, J. Wilson |
astro-ph/9301004 | Hydrodynamics of Relativistic Fireballs | We examine analytically and numerically the evolution of a relativistic
fireball. We show that, after an early rearrangement phase, most of the matter
and energy in the fireball is concentrated within a narrow shell. The shell
propagates at nearly the speed of light, with a frozen radial profile and
according to a simp... | 1993-01-12 | 2015-06-24 | [
"astro-ph"
] | Tsvi Piran, Amotz Shemi and Ramesh Narayan |
astro-ph/9301003 | Similarity of the variability patterns in the Exosat and Ginga folded
light curves of the Seyfert galaxy NGC 6814 | The Seyfert galaxy NGC 6814 is known to show periodic variation of its X-ray
luminosity. We found that the sequences of peaks (variability patterns) in the
folded X-ray light curves constructed from the {\it Exosat} and {\it Ginga}
data are remarkably similar when one ignores amplitudes of the peaks and
considers only ... | 1993-01-08 | 2007-05-23 | [
"astro-ph"
] | M.A. Abramowicz, G. Bao, V. Karas and A. Lanza |
astro-ph/9301001 | The Peculiar Balmer Line Profiles of OQ 208 | We present spectrophotometric observations of the Broad Line Radio Galaxy OQ
208 (Mrk 668, 1404+286) obtained between 1985 and 1991. We show that the Balmer
line fluxes and profile shapes undergo remarkable changes. The ratio of
intensities between the broad and narrow components of Hbeta increased
monotonically from 1... | 1993-01-07 | 2009-10-22 | [
"astro-ph"
] | P. Marziani, J.W. Sulentic, M. Calvani, E. Perez, M. Moles, & M. V.
Penston |
astro-ph/9301002 | Microwave Anisotropies in the Light of COBE | The recent COBE measurement of anisotropies in the cosmic microwave
background and the recent South Pole experiment of Gaier {\it et al.} offer an
excellent opportunity to probe cosmological theories. We test a class of
theories in which the Universe today is flat and matter dominated, and
primordial perturbations are ... | 1993-01-07 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | Scott Dodelson and Jay M. Jubas |
chao-dyn/9312008 | The Dynamics Of Vortex Structures And States Of Current In Plasma-Like
Fluids And The Electrical Explosion Of Conductors: 1. The model of a
non-equilibrium phase transition | A set of equations according to which the conducting medium consists of two
fluids - laminar and vortex, has been obtained in the present paper by
transforming MHD equations. In a similar way, an electronic fluid is assumed to
consist of a laminar and a vortex fluid. This system allows one to study the
formation and th... | 1993-12-21 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | N.B. Volkov and A.M. Iskoldsky (Russian Academy of Science, Ural
Division, Institute of Electrophysics, 34, Komsomolskaya St., Ekaterinburg,
620219, Russia) |
chao-dyn/9312007 | Bifurcations and Spatial Chaos in an Open Flow Model | It is shown that a coupled map model for open flow may exhibit spatial chaos
and spatial quasiperiodicity with temporal periodicity. The locations of these
patterns, which cover a substantial part of parameter space, are indicated in a
comprehensive phase diagram. In order to analyze the encountered phenomena, a
novel ... | 1993-12-21 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Frederick H. Willeboordse (University of Tokyo), Kunihiko Kaneko
(University of Tokyo) |
chao-dyn/9312006 | The Limits of Mathematics---Course Outline and Software | A remarkable new definition of a self-delimiting universal Turing machine is
presented that is easy to program and runs very quickly. This provides a new
foundation for algorithmic information theory. This new universal Turing
machine is implemented via software written in Mathematica and C. Using this
new software, it... | 1993-12-12 | 2008-02-03 | [
"chao-dyn",
"adap-org",
"nlin.AO",
"nlin.CD"
] | G. J. Chaitin (IBM Research Division) |
chao-dyn/9312005 | Noise-Induced Linearisation and Delinearisation | It is demonstrated, by means of analogue electronic simulation and
theoretically, that external noise can markedly change the character of the
response of a nonlinear system to a low-frequency periodic field. In general,
noise of sufficient intensity {\it linearises} the response. For certain
parameter ranges in partic... | 1993-12-09 | 2008-02-03 | [
"chao-dyn",
"adap-org",
"nlin.AO",
"nlin.CD"
] | MI Dykman, DG Luchinsky, R Mannella, PVE McClintock, HE Short, ND
Stein and N G Stocks |
chao-dyn/9312004 | Self-Similarity of Friction Laws | The change of the friction law from a mesoscopic level to a macroscopic level
is studied in the spring-block models introduced by Burridge-Knopoff. We find
that the Coulomb law is always scale invariant. Other proposed scaling laws are
only invariant under certain conditions.} | 1993-12-06 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Maria de Sousa Vieira and Hans J. Herrmann |
chao-dyn/9312003 | Transport Properties of the Lorentz Gas in Terms of Periodic Orbits | We establish a formula relating global diffusion in a space periodic
dynamical system to cycles in the elementary cell which tiles the space under
translations. | 1993-12-05 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | P. Cvitanovi\'c (Niels Bohr Institute, Blegdamsvej 17, DK-2100
Copenhagen \O, Denmark), J.-P. Eckmann (D\'epartement de Physique
Th\'eorique, Universit\'e de Gen\`eve, CH-1211 Geneva 4, Switzerland), P.
Gaspard (Service de Chimie-Physique, Universit\'e Libre de Bruxelles, Campus
Plaine, B-1050 Brussels, Belgium... |
chao-dyn/9312001 | Universality in fully developed turbulence | We extend the numerical simulations of She et al. [Phys.\ Rev.\ Lett.\ 70,
3251 (1993)] of highly turbulent flow with $15 \le$ Taylor-Reynolds number
$Re_\lambda\le 200$ up to $Re_\lambda \approx 45000$, employing a reduced wave
vector set method (introduced earlier) to approximately solve the Navier-Stokes
equation. F... | 1993-12-03 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Siegfried Grossmann (1) and Detlef Lohse (2) ((1) Fachbereich Physik,
Philipps-Universit''at, Marburg, Germany (2) The James Franck Institute, The
University of Chicago, Chicago, IL) |
chao-dyn/9312002 | Effect of a magnetic flux line on the quantum beats in the
H\'enon-Heiles level density | The quantum density of states of the H\'enon-Heiles potential displays a
pronounced beating pattern. This has been explained by the interference of
three isolated classical periodic orbits with nearby actions and periods. A
singular magnetic flux line, passing through the origin, drastically alters the
beats even thoug... | 1993-12-03 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | M. Brack(1), R. K. Bhaduri(2), J. Law(3), Ch. Maier(1), and M. V. N.
Murthy ((1)Institute for Theoretical Physics, University of Regensburg,
D-93040 Regensburg, Germany. (2)Department of Physics and Astronomy, McMaster
University, Hamilton, Canada L8S 4M1. (3)Department of Physics, University of
Guelph, Guelph,... |
chao-dyn/9311011 | The Great Inequality In A Hamiltonian Planetary Theory | The Jupiter-Saturn 2:5 near-commensurability is analyzed in a fully analytic
Hamiltonian planetary theory. Computations for the Sun-Jupiter-Saturn system,
extending to the third order of the masses and to the 8th degree in the
eccentricities and inclinations, reveal an unexpectedly sensitive dependence of
the solution ... | 1993-11-30 | 2012-08-27 | [
"chao-dyn",
"nlin.CD"
] | F. Varadi, M. Ghil and W. M. Kaula (Institute of Geophysics and
Planetary Physics University of California, Los Angeles Los Angeles,CA)
Keywords: Hamiltonian systems, planetary motion, perturbation theory,
resonances |
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