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/9308003 | Fourier Analysis of Redshift Space Distortions and the Determination of
Omega | The peculiar velocities of galaxies distort the pattern of galaxy clustering
in redshift space, making the redshift space power spectrum anisotropic. In the
linear regime, the strength of this distortion depends only on the ratio $\beta
\equiv f(\Omega)/b \approx \Omega^{0.6}/b$, where $\Omega$ is the cosmological
dens... | 1993-08-04 | 2015-06-24 | [
"astro-ph"
] | Shaun Cole, Karl B. Fisher and David H. Weinberg |
astro-ph/9308001 | Energy Principles for Self-Gravitating Barotropic Flows: II. the
Stability of Maclaurin Flows | We analyze stability conditions of "Maclaurin flows" (self-gravitating,
barotropic, two dimensional, stationary streams moving in closed loops around a
point) by minimizing their energy, subject to fixing all the constants of the
motion including mass and circulations. Necessary and sufficient conditions of
stability a... | 1993-08-04 | 2015-06-24 | [
"astro-ph"
] | Asher Yahalom Joseph Katz and Shogo Inagaki |
astro-ph/9308006 | A Calculation of the Full Neutrino Phase Space in Cold+Hot Dark Matter
Models | This paper presents a general-relativistic N-body technique for evolving the
phase space distribution of massive neutrinos in linear perturbation theory.
The method provides a much more accurate sampling of the neutrino phase space
for the HDM initial conditions of N-body simulations in a cold+hot dark matter
universe ... | 1993-08-04 | 2009-10-22 | [
"astro-ph"
] | Chung-Pei Ma and Edmund Bertschinger |
astro-ph/9307040 | Small Scale Microwave Background Fluctuations from Cosmic Strings | The Cosmic Microwave Background (CMB) fluctuations at very small angular
scales (less than $10'$) induced by matter sources are computed in a simplified
way. The result corrects a previous formula appearing in the literature. The
small scale power spectrum from cosmic strings is then calculated by a new
analytic method... | 1993-07-30 | 2011-05-10 | [
"astro-ph",
"hep-ph"
] | Mark Hindmarsh |
astro-ph/9307038 | Evidence for Gaussian Initial Fluctuations from the 1.2 Jy IRAS Survey | We recover the one-point probability distribution function of the {\it
initial} density fluctuations (\ipdf) from the quasi-linear galaxy density
field of the 1.2 Jy \iras\ redshift survey smoothed by $10\hmpc$. The recovery,
using the laminar, Eulerian, Zel'dovich approximation of Nusser and Dekel, is
independent of $... | 1993-07-29 | 2009-09-25 | [
"astro-ph"
] | A. Nusser, A. Dekel, and A. Yahil |
astro-ph/9307039 | The Expected Dipole in the Distribution of Cosmological Gamma-Ray Bursts | If gamma-ray bursts originate at cosmological distances then their angular
distribution should exhibit a dipole in the direction of the solar motion
relative to the cosmic microwave background. This is due to the combined
effects of abberation, an anisotropic shift of the burst event rate, and an
angular variation in t... | 1993-07-29 | 2009-10-22 | [
"astro-ph"
] | Eyal Maoz |
astro-ph/9307037 | On the Distance Determination and Ionization of the High Velocity Clouds | We present a study of the ionization and thermal structure of neutral
hydrogen clouds located in the Galactic halo, immersed in the extragalactic
background radiation field, and supposed to be in pressure equilibrium with the
surrounding (presumably) hot medium. The problem is solved numerically, but an
useful analytic... | 1993-07-28 | 2009-10-22 | [
"astro-ph"
] | Andrea Ferrara & George B. Field |
astro-ph/9307035 | Recovering the Inflationary Potential | A procedure is developed for the recovery of the inflationary potential over
the interval that affects astrophysical scales ($\approx 1\Mpc - 10^4\Mpc$).
The amplitudes of the scalar and tensor metric perturbations and their
power-spectrum indices, which can in principle be inferred from large-angle CBR
anisotropy expe... | 1993-07-26 | 2013-11-13 | [
"astro-ph",
"hep-ph"
] | M.S. Turner |
astro-ph/9307036 | Peculiar Velocity, Cosmic Perturbation Theory and the CMB Anisotropy | This is a somewhat extended version of the original July 93 report. It is
proved that the cosmological density perturbation is associated with a peculiar
velocity field. This allows a simple formulation of cosmological perturbation
theory, which works entirely with quasi-Newtonian fluid flow equations. As an
illustrati... | 1993-07-26 | 2010-11-01 | [
"astro-ph",
"hep-ph"
] | Marco Bruni (School of Mathematical Sciences, Queen Mary and Westfield
College, University of London, Mile End Road, London E1 4NS, UK., and
Dipartimento di Astronomia, Universit\`a degli Studi di Trieste, via Tiepolo
11, 34131 Trieste, Italy) and David H. Lyth (School of Physics and Materials,
Lancaster Univer... |
astro-ph/9307034 | Dynamics of Conductive/Cooling Fronts: Cloud Implosion and Thermal
Solitons | We investigate the evolution of interfaces among phases of the interstellar
medium with different temperature. It is found that, for some initial
conditions, the dynamical effects related to conductive fronts are very
important even if radiation losses, which tend to decelerate the front
propagation, are taken into acc... | 1993-07-23 | 2009-10-22 | [
"astro-ph"
] | Andrea Ferrara & Yuri Shchekinov |
astro-ph/9307030 | Sequential Star Formation in Taurus Molecular Cloud 1 | We discuss the fragmentation of a filamentary cloud on the basis of a
1-dimensional hydrodynamical simulation of a self-gravitating gas cloud. The
simulation shows that dense cores are produced with a semi-regular interval in
space and time from one edge to the other. At the initial stage the gas near
one of the edges ... | 1993-07-22 | 2009-10-22 | [
"astro-ph"
] | Tomoyuki Hanawa, Satoshi Yamamoto and Yasuhiro Hirahara |
astro-ph/9307033 | Gravitational Instability of Cold Matter | We solve the nonlinear evolution of pressureless, irrotational density
fluctuations in a perturbed Robertson-Walker spacetime using a new Lagrangian
method based on the velocity gradient and gravity gradient tensors. Borrowing
results from general relativity, we obtain a set of Newtonian ordinary
differential equations... | 1993-07-22 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Edmund Bertschinger and Bhuvnesh Jain |
astro-ph/9307032 | Equilibrium, Stability and Orbital Evolution of Close Binary Systems | We present a new analytic study of the equilibrium and stability properties
of close binary systems containing polytropic components. Our method is based
on the use of ellipsoidal trial functions in an energy variational principle.
We consider both synchronized and nonsynchronized systems, constructing the
compressible... | 1993-07-22 | 2009-10-22 | [
"astro-ph"
] | D. Lai, F. A. Rasio, and S. L. Shapiro |
astro-ph/9307031 | The Quark-Hadron Phase Transition, QCD Lattice Calculations and
Inhomogeneous Big-Bang Nucleosynthesis | We review recent lattice QCD results for the surface tension at the finite
temperature quark-hadron phase transition and discuss their implications on the
possible scale of inhomogeneities. In the quenched approximation the average
distance between nucleating centers is smaller than the diffusion length of a
protron, s... | 1993-07-22 | 2009-10-22 | [
"astro-ph",
"hep-lat"
] | A.A. Coley and T. Trappenberg |
astro-ph/9307029 | Counter-Evolution of Faint Field Galaxies | We adopt a new approach to explore the puzzling nature of faint blue field
galaxies. Instead of assuming that the local luminosity function is well
defined, we first determine whether any non-evolving set of luminosity
functions for different spectral types of galaxies is compatible with the
observed marginal distribut... | 1993-07-21 | 2009-10-22 | [
"astro-ph"
] | D.C. Koo, C. Gronwall, and G. Bruzual |
astro-ph/9307028 | Hubble Space Telescope Images of the Subarcsecond Jet in DG Tau | We have applied a new restoration technique to archival [O~I], H$\alpha$, and
continuum HST images of DG~Tau. The restored [O~I] and H$\alpha$ images show
that DG~Tau has a jet with a projected length of 25~AU and width $\leq$10~AU,
and is already collimated at a projected distance of $\sim$~40~AU (0\farcs25)
from the ... | 1993-07-17 | 2009-10-22 | [
"astro-ph"
] | J. Kepner, P. Hartigan, C. Yang and S. Strom |
astro-ph/9307027 | Constraints on Neutrino Oscillations from Big Bang Nucleosynethesis | We discuss in detail the effect of neutrino oscillations in Big Bang
nucleosynthesis, between active and sterile neutrinos, as well as between
active and active neutrinos. We calculate the constraints on mixings between
active and sterile neutrinos from the present observation of the primordial
helium abundance and dis... | 1993-07-16 | 2009-10-22 | [
"astro-ph"
] | X. Shi, D. N. Schramm and B. D. Fields |
astro-ph/9307024 | Radio Transients from Gamma-Ray Bursters | The rapid time variability of gamma-ray bursts implies the sources are very
compact, and the peak luminosities are so high that some matter must be ejected
at ultra-relativistic speeds. The very large Lorentz factors of the bulk flow
are also indicated by the very broad and hard spectra. It is natural to expect
that wh... | 1993-07-15 | 2016-08-30 | [
"astro-ph"
] | Bohdan Paczynski and James E. Rhoads (Princeton University
Observatory) |
astro-ph/9307026 | NGC 6397: A case study in the resolution of post-collapse globular
cluster cores | Model surface brightness profiles based on Fokker-Planck simulations have
been used to assess the high resolution surface brightness profile of the
globular cluster NGC 6397 of Lauzeral et al. (1992). The profile is well fitted
by the model in the maximum-expansion phase of a gravothermal oscillation with
a core radius... | 1993-07-15 | 2015-06-24 | [
"astro-ph"
] | G. A. Drukier |
astro-ph/9307025 | Effect of Finite Nucleon Mass on Primordial Nucleosynthesis | We have modified the standard code for primordial nucleosynthesis to include
the effect of finite nucleon mass on the weak-interaction rates as calculated
by Seckel \cite{seckel}. We find a small, systematic increase in the $^4$He
yield, $\Delta Y \simeq 0.0057\,Y$, which is insensitive to the value of the
baryon-to-ph... | 1993-07-15 | 2007-05-23 | [
"astro-ph",
"hep-ph"
] | Geza Gyuk and Michael S. Turner (Univ. of Chicago/Fermilab) |
astro-ph/9307022 | An imaging K-band survey - I: The catalogue, star and galaxy counts | We present results from a large area (552\,\sqamin) imaging $K$-band survey
to a 5$\sigma$ limit of $K\simeq 17.3$. We have optical-infrared colours of
almost all the objects in the sample. Star-galaxy discrimination is performed
and the results used to derive the infrared star and galaxy counts. $K$-band
``no-evolutio... | 1993-07-14 | 2015-06-24 | [
"astro-ph"
] | Karl Glazebrook, J.A. Peacock, C.A. Collins and L. Miller |
astro-ph/9307023 | Masses of Multiquark Droplets | The mass formulae for finite lumps of strange quark matter with $u$, $d$ and
$s$ quarks, and non-strange quark matter consisting of $u$ and $d$ quarks are
derived in a non-relativistic potential model. The finite-size effects
comprising the surface, curvature and even, the Gauss curvature were
consistently obtained, wh... | 1993-07-14 | 2009-10-22 | [
"astro-ph"
] | L. Satpathy, P.K. Sahu and V.S. Uma Maheswari |
astro-ph/9307021 | The Infrared Tully-Fisher Relation in the Ursa-Major Cluster | We present new magnitudes derived from 1.65 micron images for 23 galaxies in
the Ursa Major cluster. Magnitudes now exist for all but one spiral meeting our
criteria for cluster membership and having HI velocity width greater than 187
km/s and inclination greater than 45 deg. These spirals fit a Tully-Fisher
relation w... | 1993-07-13 | 2009-10-22 | [
"astro-ph"
] | R.F. Peletier and S.P. Willner |
astro-ph/9307019 | The radio background: radio-loud galaxies at high and low redshifts | The majority of this paper is devoted to discrete radio sources, and their
consequences for cosmology. Three main issues are considered: (i) what makes a
galaxy radio loud?; (ii) what do we know about how the population of radio-loud
galaxies has changed with epoch?; and (iii) what can observations of
high-redshift rad... | 1993-07-12 | 2007-05-23 | [
"astro-ph"
] | John Peacock (Royal Observatory Edinburgh) |
astro-ph/9307020 | The Inflationary Energy Scale | The energy scale of inflation is of much interest, as it suggests the scale
of grand unified physics and also governs whether cosmological events such as
topological defect formation can occur after inflation. The COBE results are
used to limit the energy scale of inflation at around 60 $e$-foldings from the
end of inf... | 1993-07-12 | 2010-11-01 | [
"astro-ph",
"gr-qc"
] | Andrew R Liddle |
astro-ph/9307018 | Did the universe recombine? New spectral constraints on reheating | One still cannot conclusively assert that the universe underwent a neutral
phase, despite the new COBE FIRAS limit y<0.000025 on Compton y-distortions of
the cosmic microwave background. Although scenarios where the very early
(z=1000) ionization is thermal, caused by IGM temperatures exceeding 10000K,
are clearly rule... | 1993-07-09 | 2009-10-07 | [
"astro-ph"
] | Max Tegmark, Joseph Silk |
astro-ph/9307017 | On the inevitability of reionization: implications for cosmic microwave
background fluctuations | Early photoionization of the intergalactic medium is discussed in a nearly
model-independent way, in order to investigate whether early structures
corresponding to rare Gaussian peaks in a CDM model can photoionize the
intergalactic medium sufficiently early to appreciably smooth out the microwave
background fluctuatio... | 1993-07-09 | 2009-10-07 | [
"astro-ph"
] | Max Tegmark, Joseph Silk, Alain Blanchard |
astro-ph/9307016 | Classical and Quantum Theory of Perturbations in Inflationary Universe
Models | A brief introduction to the gauge invariant classical and quantum theory of
cosmological perturbations is given. The formalism is applied to inflationary
Universe models and yields a consistent and unified description of the
generation and evolution of fluctuations. A general formula for the amplitude
of cosmological p... | 1993-07-09 | 2007-05-23 | [
"astro-ph",
"hep-ph"
] | R. Brandenberger (Brown Univ.), H. Feldman (Univ. of Michigan) and V.
Mukhanov (ETH Zuerich) |
astro-ph/9307014 | Evidence for the Galactic Origin of Gamma-Ray Bursts | We investigate the angular distribution of the $\gamma$-ray bursts in the
publicly available BATSE catalogue, using the measures of burst brightness $B$
and short time scale ($\simless$ 0.3 s) variability $V$ which we introduced
earlier. We show that the 54 type I ($\log V \le -0.8$) bursts lying in the
middle brightne... | 1993-07-08 | 2016-06-08 | [
"astro-ph"
] | J.M. Quashnock and D.Q. Lamb |
astro-ph/9307015 | Evidence That Gamma-Ray Burst Sources Repeat | We investigate clustering in the angular distribution of the 260 $\gamma$-ray
bursts in the publicly available BATSE catalogue, using a nearest neighbour
analysis and the measures of burst brightness $B$ and short time scale
variability $V$ which we introduced earlier. We find that while all 260 bursts
are only modestl... | 1993-07-08 | 2016-06-08 | [
"astro-ph"
] | J.M. Quashnock and D.Q. Lamb |
astro-ph/9307013 | Solar Neutrino Experiments: New Physics? | Physics beyond the simplest version of the standard electroweak model is
required to reconcile the results of the chlorine and the Kamiokande solar
neutrino experiments. None of the 1000 solar models in a full Monte Carlo
simulation is consistent with the results of the chlorine or the Kamiokande
experiments. Even if t... | 1993-07-07 | 2009-09-25 | [
"astro-ph"
] | John N. Bahcall |
astro-ph/9307012 | Geometry of the HST Planetary Camera Field | We present a solution for the relative positions and orientations of the four
CCD chips on the Hubble Space Telescope (HST) Planetary Camera (PC). An
accurate solution is required when matching HST images with ground-based images
or with one another. The solution is accurate to about 1/4 PC pixel or about
$0{.\hskip-2p... | 1993-07-06 | 2009-10-22 | [
"astro-ph"
] | Andrew Gould and Brian Yanny |
astro-ph/9307007 | CBS - a Program for Close Binary System Light Curve Analysis | CBS is a new program for binary system light curve analysis, it generates
synthetic light curves for a binary system, accounting for eclipses, tidal
distortion, limb darkening, gravity darkening and reflection; it is also
possible to compute the light contribution and eclipses of an accretion disk.
The bolometric light... | 1993-07-05 | 2007-05-23 | [
"astro-ph"
] | Loretta Solmi and Marcello Galli |
astro-ph/9307010 | Sharp Hi Edges in the Outskirts of Disk Galaxies | Observations indicate that some extended outer disks have a sharp cut off in
the surface density of neutral hydrogen when this approaches the value of $\sim
2\times 10^{19}$ cm$^{-2}$. In this paper we model these HI edges as places
where the ratio of neutral to ionized hydrogen drops rapidly due to ionizing
radiation.... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | Edvige Corbelli and Edwin E. Salpeter |
astro-ph/9307006 | The Local Galaxy Density and the Arm Class of Spiral Galaxies | We have examined the effect of the environmental density on the arm
classification of an extensive sample of spiral galaxies included in the Nearby
Galaxy Catalog (Tully, 1988a). We have also explored the dependence of the arm
class of a galaxy on other factors, such as its blue absolute magnitude and its
disk-to-total... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | G. Giuricin, P. Monaco, F. Mardirossian, M. Mezzetti |
astro-ph/9307005 | The Environment of Lyman a Absorbers in the Sightline toward 3C273 | We present new ground-based data following up on the HST discovery of
low-redshift Lya absorption in the sight-line to the quasar 3C273. Narrow-band
filter observations show that there are no H II regions within a 12 kpc radius
of the line-of-sight to the quasar, at the velocities of three of the
absorbers. Broad-band ... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | S. L. Morris, R. J. Weymann, Alan Dressler, P. J. McCarthy, B. A.
Smith, R. J. Terrile, R. Gionvanelli and M. Irwin |
astro-ph/9307011 | Exteremely High Velocity Outflows | Extremely high velocity (EHV) wings, with full widths of 72 to 140 km/s, are
seen on the CO J=3-2 lines toward W3 IRS 5, GL 490, NGC 2071, W28 A2, GL 2591,
S140, and Cepheus A.
The results of our survey suggest that EHV wings are common around infrared
sources of moderate to high luminosity (500 to 4x10^5 Lsun) in de... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | Minho Choi, Neal J. Evans II, and Daniel T. Jaffe |
astro-ph/9307009 | Hi Spin Temperatures and Heating Requirements in Outer Regions of Disk
Galaxies | ABSRACT:We show how to use 21-cm emission and absorption studies to estimate
the heat inputs to the neutral gas in low pressure environments, such as in
outer disks of spiral galaxies, in galactic halos or in intergalactic space.
For a range of model parameters we calculate the gas kinetic and spin
temperatures ($T_K$ ... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | Edvige Corbelli and Edwin E. Salpeter |
astro-ph/9307008 | Neutral Hydrogen Absorption and Emission in the Quasar/Galaxy Pair
3C275.1/\NGC4651 | 3C275.1 and \NGC4651 make a particularly interesting quasar/galaxy pairing
because of the alignment of such a strong radio emitter behind the outer H\I
disk of a relatively undisturbed spiral galaxy. This provides an opportunity to
study the spin-temperature characteristics of atomic hydrogen at low column
densities, i... | 1993-07-05 | 2009-10-22 | [
"astro-ph"
] | Stephen E. Schneider and Edvige Corbelli |
astro-ph/9307003 | Linear Potentials and Galactic Rotation Curves - Representative Fitting | We present a simple, closed form expression for the potential of an
axisymmetric disk of stars interacting through gravitational potentials of the
form $V(r)=-\beta /r+\gamma r/2$, the potential associated with fundamental
sources in the conformal invariant fourth order theory of gravity which has
recently been advance... | 1993-07-02 | 2007-05-23 | [
"astro-ph",
"gr-qc",
"hep-ph"
] | Philip D. Mannheim (University of Connecticut) |
astro-ph/9307004 | Linear Potentials and Galactic Rotation Curves - Formalism | In the first paper in this series we presented a typical set of galactic
rotation curves associated with the conformal invariant fourth order theory of
gravity which has recently been advanced by Mannheim and Kazanas as a candidate
alternative to the standard second order Einstein theory. Reasonable agreement
with data... | 1993-07-02 | 2007-05-23 | [
"astro-ph",
"gr-qc",
"hep-ph"
] | Philip D. Mannheim (University of Connecticut) |
astro-ph/9307001 | Clustering in the 1.2 Jy IRAS Galaxy Redshift Survey I: The Redshift and
Real Space Correlation Functions | We present analyses of the two-point correlation function derived from an
all-sky redshift survey of 5313 galaxies extracted from the Infrared
Astronomical Satellite (IRAS) database. The redshift space correlation function
\xi(s) is well described by a power law, $\xi(s) = (s/4.53h^{-1}{\rm
Mpc})^{-1.28}$, on scales \s... | 1993-07-01 | 2015-06-24 | [
"astro-ph"
] | Karl B. Fisher, Marc Davis, Michael A. Strauss, Amos Yahil, and John
Huchra |
astro-ph/9307002 | Hybrid Inflation | Usually inflation ends either by a slow rolling of the inflaton field, which
gradually becomes faster and faster, or by a first-order phase transition. We
describe a model where inflation ends in a different way, due to a very rapid
rolling (`waterfall') of a scalar field $\sigma$ triggered by another scalar
field $\ph... | 1993-07-01 | 2009-09-29 | [
"astro-ph",
"gr-qc"
] | Andrei Linde |
astro-ph/9306030 | Extended Inflation with a Curvature-Coupled Inflaton | We examine extended inflation models enhanced by the addition of a coupling
between the inflaton field and the space-time curvature. We examine two types
of model, where the underlying inflaton potential takes on second-order and
first-order form respectively. One aim is to provide models which satisfy the
solar system... | 1993-06-30 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Andrew M Laycock and Andrew R Liddle |
astro-ph/9306029 | Tensor Perturbations in Inflationary Models as a Probe of Cosmology | In principle, the tensor metric (gravity-wave) perturbations that arise in
inflationary models can, beyond probing the underlying inflationary model,
provide information about the Universe: ionization history, presence of a
cosmological constant, and epoch of matter-radiation equality. Because tensor
perturbations give... | 1993-06-30 | 2009-08-18 | [
"astro-ph",
"hep-ph"
] | Michael S. Turner, Martin White, and James E. Lidsey |
astro-ph/9306028 | Collapse and Fragmentation of Magnetized Cylindrical Clouds | Gravitational collapse of the cylindrical elongated cloud is studied by
numerical magnetohydrodynamical simulations. In the infinitely long cloud in
hydrostatic configuration, small perturbations grow by the gravitational
instability. The most unstable mode indicated by a linear perturbation theory
grows selectively ev... | 1993-06-29 | 2009-10-22 | [
"astro-ph"
] | Kohji Tomisaka (Niigata University, Niigata, Japan) |
astro-ph/9306026 | N-Body Simulations of Star-Disc Captures in Globular Clusters | The presence of protostellar disks can greatly increase the dissipation
during close stellar encounters, leading to the formation of a significant
population of binaries during the initial collapse and virialization of a
cluster. We have used N-body simulations of collapsing globular clusters to
find the major factors ... | 1993-06-25 | 2015-06-24 | [
"astro-ph"
] | S. D. Murray and C. J. Clarke (Institute of Astronomy, Madingley Road,
Cambridge CB3 0HA, U.K.) |
astro-ph/9306027 | Polarization of the Microwave Background due to Primordial Gravitational
Waves | The contribution of gravitational wave (tensor metric) and energy density
(scalar metric) fluctuations to the cosmic microwave background polarization is
computed by numerically solving the relativistic radiation transfer equations.
We find that the tensor contribution is significant only at large angular
scales (multi... | 1993-06-25 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Robert Crittenden, Richard L. Davis, and Paul J. Steinhardt |
astro-ph/9306025 | Nonlinear Instabilities in Shock-Bounded Slabs | (substantial changes to section 3.2, otherwise minor) We present an analysis
of the hydrodynamic stability of a cold slab bounded by two accretion shocks.
Previous numerical work has shown that when the Mach number of the shock is
large the slab is unstable. Here we show that to linear order both the bending
and breath... | 1993-06-24 | 2009-10-22 | [
"astro-ph"
] | ET Vishniac |
astro-ph/9306024 | Vacuum-Polarization Corrections to Solar-Fusion Rates | The vacuum-polarization corrections to rates for nuclear-fusion reactions in
the $pp$ chain and in the CNO cycle are calculated. For the reactions of
particular importance to the solar-neutrino problem, the $\Hethree$, $\Hefour$,
$\Be$, and $\Ni$ reactions, we find the magnitude of the effect to be less than
2\%. The e... | 1993-06-24 | 2008-11-26 | [
"astro-ph",
"hep-ph",
"nucl-th"
] | Marc Kamionkowski and John N. Bahcall |
astro-ph/9306022 | The emission spectra of radioweak quasars. I. The farinfrared emission | We model farinfrared (FIR) spectra of radioweak quasars with the assumption
that the emission is from heated dust, and that the heating is due to the
central engine via energetic particles. These energetic particles are diffusing
from a postulated source near the central engine through a tenuous galactic
halo to arrive... | 1993-06-23 | 2007-05-23 | [
"astro-ph"
] | Martina Niemeyer and Peter L. Biermann (Max-Planck-Institut f"ur
Radioastronomie Bonn) |
astro-ph/9306023 | Dynamics of the Globular Cluster NGC 362 | In this paper we have examined the internal dynamics of the globular cluster
NGC 362. A V band surface brightness profile (SBP) was constructed from CCD
images, and, after it was determined that the cluster is not post
core-collapse, fit with single- and multi-mass King-Michie (KM) models. The
total cluster luminosity ... | 1993-06-23 | 2009-10-22 | [
"astro-ph"
] | P. Fischer, D.L. Welch, M. Mateo and P. C\^ot\'e |
astro-ph/9306021 | Late reionization by supernova-driven winds | A model is presented in which supernova-driven winds from early galaxies
reionize the intergalactic medium by z=5. This scenario can explain the
observed absence of a Gunn-Peterson trough in the spectra of high-redshift
quasars providing that the bulk of these early galaxies are quite small, no
more massive than about ... | 1993-06-23 | 2009-10-07 | [
"astro-ph"
] | Max Tegmark, Joseph Silk, August Evrard |
astro-ph/9306020 | Weakly Damped Modes in Star Clusters and Galaxies | A perturber may excite a coherent mode in a star cluster or galaxy. If the
stellar system is stable, it is commonly assumed that such a mode will be
strongly damped and therefore of little practical consequence other than
redistributing momentum and energy deposited by the perturber. This paper
demonstrates that this a... | 1993-06-22 | 2009-10-22 | [
"astro-ph"
] | Martin D. Weinberg |
astro-ph/9306019 | Almost Readily Detectable Time Delays from Gravity Waves? | When a source of gravity waves is conveniently placed between the Earth and
some source of light, preferably a pulsating source, the magnitude of time
delays induced by the gravity waves could, in optimal situations, be not too
far out of the reach of already existing technology. Besides the odd case of
near-to-perfect... | 1993-06-21 | 2010-11-01 | [
"astro-ph",
"gr-qc"
] | Redouane Fakir |
astro-ph/9306018 | The Three-point Function as a Probe of Models for Large-scale Structure | We analyze the consequences of models of structure formation for higher-order
($n$-point) galaxy correlation functions in the mildly non-linear regime.
Several variations of the standard $\Omega=1$ cold dark matter model with
scale-invariant primordial perturbations have recently been introduced to
obtain more power on... | 1993-06-20 | 2016-08-30 | [
"astro-ph"
] | Joshua A. Frieman and Enrique Gaztanaga |
astro-ph/9306017 | A Self-Consistent Model For The Long-Term Gamma-Ray Spectral Variability
of Cygnus X-1 | The long-term transitions of the black hole candidate Cygnus X-1 (between the
states gamma_1, gamma_2, and gamma_3) include the occasional appearance of a
strong ~ MeV bump (gamma_1), whose strength appears to be anti-correlated with
the continuum flux (~ 400 keV) due to the Compton upscattering of cold disk
photons by... | 1993-06-19 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Fulvio Melia & Ranjeev Misra |
astro-ph/9306015 | Star Clusters | This review concentrates almost entirely on globular star clusters. It
emphasises the increasing realisation that few of the traditional problems of
star cluster astronomy can be studied in isolation: the influence of the Galaxy
affects dynamical evolution deep in the core, and the spectrum of stellar
masses; in turn t... | 1993-06-18 | 2016-01-27 | [
"astro-ph"
] | Douglas C. Heggie (University of Edinburgh, Department of Mathematics
and Statistics, King's Buildings, Edinburgh EH9 3JZ, U.K.) |
astro-ph/9306016 | Focusing of Alfvenic Power in the Context of Gamma-Ray Burst Emissivity | Highly dynamic magnetospheric perturbations in neutron star environments can
naturally account for the features observed in Gamma-ray Burst spectra. The
source distribution, however, appears to be extragalactic. Although
noncatastrophic isotropic emission mechanisms may be ruled out on energetic and
timing arguments, M... | 1993-06-18 | 2009-10-22 | [
"astro-ph"
] | M. Fatuzzo and F. Melia |
astro-ph/9306014 | Neutrino Balls and Gamma-Ray Bursts | We propose a mechanism by which the neutrino emission from a supernova-type
explosion can be converted into a gamma-ray burst of total energy $\sim
10^{50}$ ergs. This occurs naturally if the explosion is situated inside a ball
of trapped neutrinos, which in turn may lie at a galactic core. There are
possible unique si... | 1993-06-17 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | B. Holdom and R. A. Malaney |
astro-ph/9306013 | The Extended 12 Micron Galaxy Sample | We have selected an all--sky sample of 893 galaxies from the IRAS FSC--2,
defined by a total (ADDSCAN) 12um flux limit of 0.22~Jy. Completeness is
verified to 0.30~Jy, below which we have quantified the incompleteness down to
0.22~Jy for our statistical analysis. \P The Seyfert subsample is the largest
unbiased sample ... | 1993-06-17 | 2009-10-22 | [
"astro-ph"
] | B. Rush, M. A. Malkan, and L. Spinoglio |
astro-ph/9306012 | Cosmic Variance of the Three-Point Correlation Function of the Cosmic
Microwave Background | The fluctuations in the cosmic microwave background radiation may contain
deviations from gaussian statistics which would be reflected in a nonzero value
of three-point correlation function of $\Delta T$. However, any potential
observation of the three-point function is limited by cosmic variance, even if
a whole-sky m... | 1993-06-15 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | Mark Srednicki |
astro-ph/9306009 | Inhomogeneous Inflation: Numerical Evolution | We describe our 3-dimensional numerical relativity code for the evolution of
inhomogeneous cosmologies. During the evolution the constraint equations are
monitored but not solved. The code has been tested against perturbation theory
with good results. We present some runs of inhomogeneous inflation with
strongly inhomo... | 1993-06-15 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | Hannu Kurki-Suonio, Pablo Laguna, and Richard A. Matzner |
astro-ph/9306010 | Reconstruction Analysis I.: Redshift--space deprojection in the
quasi--nonlinear regime | We present a new method for extracting the true 3-d velocity and density
fields from the nonlinear redshift--space projected density field. The method
is based on the nonlinear, nonlocal transformation of the density field. We
assume a curl--free velocity field, although in the formulation presented here
this assumptio... | 1993-06-15 | 2015-06-24 | [
"astro-ph"
] | A.N. Taylor & M. Rowan-Robinson |
astro-ph/9306011 | Evidence for Two Distinct Morphological Classes of Gamma-Ray Bursts from
their Short Timescale Variability | We have analyzed the 241 bursts for which peak counts $\C$ exist in the
publicly available Burst and Transient Source Experiment (BATSE) catalog.
Introducing peak counts in 1024 ms as a measure of burst brightness $\B$ and
the ratio of peak counts in 64 and 1024 ms as a measure of short timescale
variability $\V$, we f... | 1993-06-15 | 2009-10-22 | [
"astro-ph"
] | D. Q. Lamb, C. Graziani, and I. A. Smith |
astro-ph/9306008 | On the Lyman-alpha Emission of Starburst Galaxies | Nearby starburst galaxies have consistently shown anomalous Ly-alpha/H-beta
ratios. By re-analysing the published IUE/optical observations, we show that
most starbursts present a normal Ly-alpha emission, consistent with case B
recombination theory, provided extinction laws appropriate to their
metallicities are used. ... | 1993-06-13 | 2009-10-22 | [
"astro-ph"
] | David Valls-Gabaud |
astro-ph/9306007 | Polarized Scattering in the Vicinty of Galaxies | Some bright cD galaxies in cluster cooling flows have Thomson optical depths
exceeding 0.01. A few percent of their luminosity is scattered and appears as
diffuse polarized emission. We calculate the scattering process for different
geometric combinations of luminosity sources and scattering media. We apply our
results... | 1993-06-11 | 2009-10-22 | [
"astro-ph"
] | B.W. Murphy and D.F. Chernoff |
astro-ph/9306005 | Gamma Rays and Neutrinos from a Powerful Cosmic Accelerator | Recent measurements of gamma rays from the powerful quasar 3C273 by the
Compton Gamma Ray Observatory show that a powerful cosmic accelerator must be
operating. In this paper the evidence for proton acceleration is collected with
the result that (i) the gamma ray spectrum should flatten slightly above a few
GeV and tha... | 1993-06-11 | 2009-10-22 | [
"astro-ph"
] | Karl Mannheim |
astro-ph/9306006 | Cosmic Voids and Biased Galaxy Formation | Using cosmological $N$-body simulations and the void probability function
(VPF), we investigate the statistical properties of voids within a wide range
of initially Gaussian models for the origin of large-scale structure. We pay
particular attention to the ability of the VPF to diagnose `biased galaxy
formation': the p... | 1993-06-11 | 2015-06-24 | [
"astro-ph"
] | Blane Little, David H. Weinberg |
astro-ph/9306004 | An Upper Limit to the Mass of Black Holes in the Halo of our Galaxy | If massive black holes constitute the dark matter in the halo surrounding the
Milky Way, the existence of low mass globular clusters in the halo suggests an
upper limit to their mass, $M_{_{BH}}$. We use a combination of the impulse
approximation and numerical simulations to constrain $M_{_{BH}} \lsim
10^3M_\odot$, oth... | 1993-06-10 | 2009-10-22 | [
"astro-ph"
] | Ben Moore |
astro-ph/9306003 | Skewness Induced by Gravity | Large-scale structures, observed today, are generally believed to have grown
from random, small-amplitude inhomogeneities, present in the early Universe. We
investigate how gravitational instability drives the distribution of these
fluctuations away from the initial state, assumed to be Gaussian. Using second
order per... | 1993-06-08 | 2009-10-22 | [
"astro-ph"
] | R. Juszkiewicz, F. R. Bouchet and S. Colombi |
astro-ph/9306002 | Look Back Time, the Age of the Universe, and the Case for a Positive
Cosmological Constant | We present explicit expressions for the calculation of cosmological look back
time, for zero cosmological constant and arbitrary density parameter $\Omega$,
which, in the limit as redshift becomes infinite, give the age of the universe.
The case for non-zero cosmological constant is most easily solved via numerical
int... | 1993-06-07 | 2007-05-23 | [
"astro-ph"
] | Kevin Krisciunas (Joint Astronomy Centre, Hilo, Hawaii, USA) |
astro-ph/9306001 | Did Cosmic Rays Reionize the Intergalactic Medium? | We investigate the role of cosmic rays from young galaxies in heating and
ionizing the intergalactic medium (IGM) at high redshift. Using the IRAS
observations at $60 \mu m$, we estimate the cosmic ray luminosity density at
the present epoch. We consider various forms of luminosity evolution in
redshift and calculate (... | 1993-06-02 | 2015-06-24 | [
"astro-ph"
] | Biman B. Nath, Peter L. Biermann |
astro-ph/9305038 | Reionization and cosmic microwave background distortions: a complete
treatment of second order Compton scattering | The ionization history of the universe provides a major source of ambiguity
in constraining cosmological models using small angular scale microwave
background anisotropies. To clarify these issues, we consider a complete
treatment of Compton scattering to second order, an approach which may be
applicable to other astro... | 1993-05-29 | 2009-10-22 | [
"astro-ph"
] | Wayne Hu, Douglas Scott & Joseph Silk |
astro-ph/9305036 | Strange Cases from the Files of Astronomical Sociology | What astronomer could not use his own surname because his father was beheaded
for sorcery? Who built the only observatory worth $5 billion in today's money?
Who had worse luck than YOU travelling thousands of miles NOT to observe an
astronomical event? Who had one of his books bound in human skin at the request
of his ... | 1993-05-28 | 2007-05-23 | [
"astro-ph"
] | Kevin Krisciunas |
astro-ph/9305037 | The gamma-ray visibility of supernova remnants: a test of cosmic ray
origin | Gamma ray production in supernova remnants is discussed on the basis of
current ideas about cosmic ray acceleration. | 1993-05-28 | 2007-05-23 | [
"astro-ph"
] | L O'C Drury, F A Aharonian and H J Voelk |
astro-ph/9305035 | Motion of a Solar Mass Compact Object Around a Massive Rotating Black
Hole | This preprint is based on two articles accepted by MNRAS and ApJ.
Our aim is to study the evolution of the orbit of a star under the influence
of interactions with an accretion disc in an AGN. The model considered consists
of a low-mass compact object orbiting a supermassive black hole and colliding
periodically with... | 1993-05-27 | 2007-05-23 | [
"astro-ph"
] | V. Karas and D. Vokrouhlicky |
astro-ph/9305034 | Sinusoidal Gravitational Waves from the Nuclei of Active Galaxies | It is believed that most quasars and galaxies present two common features:
the presence in their core of a supermassive object, and the experience of one
or more encounters with other galaxies. In this scenario, it is likely that a
substantial fraction of active galactic nuclei harbour a supermassive binary,
fueled by ... | 1993-05-26 | 2007-05-23 | [
"astro-ph",
"gr-qc"
] | Giacomo Giampieri |
astro-ph/9305032 | Redshift distortions of galaxy correlation functions | To examine how peculiar velocities can affect the 2-, 3-, and 4-point
redshift correlation functions, we evaluate volume-average correlations for
configurations that emphasize and minimize redshift distortions for four
different volume-limited samples from each of the CfA, SSRS, and IRAS redshift
catalogs. We find a ch... | 1993-05-26 | 2008-11-26 | [
"astro-ph"
] | J.N.Fry and Enrique Gaztanaga |
astro-ph/9305033 | Comparing Direct N-Body Integration with Anisotropic Gaseous Models of
Star Clusters | We compare the results for the dynamical evolution of star clusters derived
from anisotropic gaseous models with the data from N-body simulations of
isolated and one-component systems, each having modest number of stars. The
statistical quality of N-body data was improved by averaging results from many
N-body runs, eac... | 1993-05-26 | 2015-06-24 | [
"astro-ph"
] | Mirek Giersz and Rainer Spurzem |
astro-ph/9305031 | Galaxy Redshifts: Improved Techniques | This paper analyses the effects of random noise in determining errors and
confidence levels for galaxy redshifts obtained by cross-correlation
techniques. The main finding is that confidence levels have previously been
overestimated, and errors inaccurately calculated in certain applications. New
formul\ae\ are present... | 1993-05-25 | 2015-06-24 | [
"astro-ph"
] | A.F. Heavens |
astro-ph/9305030 | "Sample Variance" in Small-Scale CMB Anisotropy Experiments | We discuss the effects of finite sky coverage and the uncertainty in
extracting information about the power spectrum from experiments on small
angular scales. In general the cosmic variance is enhanced by a factor of
$4\pi/A$, where $A$ is the solid angle sampled by the experiment. As a rough
guide, an experiment with ... | 1993-05-25 | 2009-10-22 | [
"astro-ph",
"hep-ph"
] | Douglas Scott, Mark Srednicki, Martin White |
astro-ph/9305029 | The Sensitivity of Ligo to a Stochastic Background, and its Dependance
on the Detector Orientations | We analyze the sensitivity of a network of interferometer gravitational-wave
detectors to the gravitational-wave stochastic background, and derive the
dependence of this sensitivity on the orientations of the detector arms. We
build on and extend the recent work of Christensen, but our conclusion for the
optimal choice... | 1993-05-24 | 2009-12-30 | [
"astro-ph",
"gr-qc"
] | Eanna Flanagan |
astro-ph/9405049 | Complete normality conditions for the dynamical systems on Riemannian
manifolds | New additional equations for the Newtonian dynamical systems on Riemannian
manifolds are found. They supplement the previously found weak normality
conditions up to the complete normality conditions for Newtonian dynamical
systems. | 1993-05-24 | 2007-05-23 | [
"astro-ph"
] | A.Yu. Boldin, A.A. Bronnikov, V.V. Dmitrieva, R.A. Sharipov (Bashkir
State University, Ufa, Russia) |
astro-ph/9305028 | Lectures on Modern Cosmology and Structure Formation | Focus of these lectures is the challenge of explaining the origin of
structure in the Universe. The interplay between quantum field theory and
classical general relativity has given rise to several interesting cosmological
models which contain mechanisms for generating density inhomogeneities. The
three theories discus... | 1993-05-22 | 2007-05-23 | [
"astro-ph",
"hep-ph"
] | O. Eboli and V. Ribelles |
astro-ph/9305027 | The Orbit of the Binary Star Delta Scorpii | Although delta Scorpii is a bright and well-studied star, the details of its
multiplicity have remained unclear. Here we present the first
diffraction-limited image of this 0.12 arcsec binary star, made using optical
interferometry, and resolve the confusion that has existed in the literature
over its multiplicity.
E... | 1993-05-22 | 2009-10-22 | [
"astro-ph"
] | Timothy R. Bedding |
astro-ph/9305026 | The Ultraviolet Emission Properties of Five Low-Redshift Active Galactic
Nuclei at High Signal to Noise and Spectral Resolution | We analyze the ultraviolet (UV) emission line and continuum properties of
five low-redshift active galactic nuclei (four luminous quasars:
PKS~0405$-$123, H1821+643, PG~0953+414, and 3C273, and one bright Seyfert 1
galaxy: Mrk~205). The HST spectra have higher signal-to-noise ratios (typically
$\sim 60$ per resolution ... | 1993-05-21 | 2011-02-19 | [
"astro-ph"
] | Ari Laor, John N. Bahcall, Buell T. Jannuzi, Donald P. Schneider
(IAS), Richard F. Green (NOAO), George F. Hartig (STScI) |
astro-ph/9305025 | Lick Slit Spectra of Thirty-Eight Objective Prism QSO Candidates and Low
Metallicity Halo Stars | We present Lick Observatory slit spectra of 38 objects which were claimed to
have pronounced ultraviolet excess and emission lines by Zhan \& Chen. Most of
our spectra have FWHM spectral resolutions of about 4~\AA , and relatively high
S/N of about 10 -- 50, although some have FWHM $\simeq 15$~\AA ~or lower S/N.
We fin... | 1993-05-19 | 2009-10-22 | [
"astro-ph"
] | D. Tytler, X.-M Fan, V.T. Junkkarinen and R.D. Cohen |
astro-ph/9305023 | AG Carinae III. The 1990 hot phase of the star and the physical
structure of the circumstellar environment | Long slit spectra of the region around the Luminous Blue Variable AG Car
obtained in June 1990, just before the onset of its new brightening phase,
indicate that AG Car was in the hottest phase so far recorded. The spectrum
shows strong broad emissions of He II 468.6 nm, and [Fe III] 465.8-470.1 nm,
and He I, N II, Si ... | 1993-05-19 | 2011-05-23 | [
"astro-ph"
] | R. Viotti, V.F. Polcaro, C. Rossi |
astro-ph/9305024 | A forgotten episode of the $\eta ~Car$ light curve in 1860-1865 | We have found previously unreported observations of the galactic Luminous
Blue Variable $\eta ~Car$ covering the period 1860-1865. Contrary to the
current belief, these data suggest that the star reached the first magnitude in
1860-1862, with possible large luminosity fluctuations, followed by a steep
fading in 1865. A... | 1993-05-19 | 2011-05-23 | [
"astro-ph"
] | V.F. Polcaro and R. Viotti |
astro-ph/9305021 | Hydrodynamic Detonation Instability in Electroweak and QCD Phase
Transitions | The hydrodynamic stability of deflagration and detonation bubbles for a first
order electroweak and QCD phase transition has been discussed recently with the
suggestion that detonations are stable. We examine here the case of a
detonation more carefully. We find that in front of the bubble wall
perturbations do not gro... | 1993-05-18 | 2009-10-22 | [
"astro-ph"
] | Mark Abney |
astro-ph/9305022 | A Measurement of the Medium-Scale Anisotropy in the Cosmic Microwave
Background Radiation | Observations from the first flight of the Medium Scale Anisotropy Measurement
(MSAM) are analyzed to place limits on Gaussian fluctuations in the Cosmic
Microwave Background Radiation (CMBR). This instrument chops a 30\arcmin\ beam
in a 3 position pattern with a throw of $\pm40\arcmin$; the resulting data is
analyzed i... | 1993-05-18 | 2009-10-22 | [
"astro-ph"
] | E. S. Cheng, D. A. Cottingham, D. J. Fixsen, C. A. Inman, M. S.
Kowitt, S. S. Meyer, L. A. Page, J. L. Puchalla, and R. F. Silverberg |
astro-ph/9305020 | The Rate of the Proton-Proton Reaction | We re-evaluate the matrix element for the proton-proton reaction which is
important for stellar-evolution calculations and for the solar-neutrino
problem. We self-consistently determine the effect of vacuum polarization on
the matrix element by first correcting the low-energy scattering data to
account for vacuum polar... | 1993-05-17 | 2009-10-22 | [
"astro-ph",
"hep-ph",
"nucl-th"
] | Marc Kamionkowski and John N. Bahcall |
astro-ph/9305018 | Moments of the Counts Distribution in the 1.2 Jy IRAS Redshift Survey | We derive the volume-averaged 2, 3, 4, and 5-point correlation functions from
the moments of the Count probability distribution function of a redshift survey
of IRAS galaxies, and find them all to be reasonably well-described by power
laws. Weak systematic effects with the sample size provide evidence for
stronger clus... | 1993-05-14 | 2009-10-22 | [
"astro-ph"
] | Francois R. Bouchet, et al |
astro-ph/9305019 | Limits on the Primordial Fluctuation Spectrum Void Sizes and CMBR
Anisotropy | We suggest to use the common appearance of voids with a scale of $5000 \kms$
in the galaxy distribution to estimate the power spectrum on this scale. We use
a simple model for a gravitational formation of voids and we compare the
results with the matter fluctuations as constrained by the CMBR observations of
COBE. We f... | 1993-05-14 | 2008-02-03 | [
"astro-ph"
] | T. Piran, M. Lecar, D. S. Goldwirth, L. Nicolaci da Costa, and G. R.
Blumenthal |
astro-ph/9305017 | High resolution kinematics of galactic globular clusters. II. On the
significance of velocity dispersion measurements | Small number statistics may heavily affect the structure of the broadening
function in integrated spectra of galactic globular cluster centers. As a
consequence, it is a priori unknown how closely line broadening measure- ments
gauge the intrinsic velocity dispersions at the cores of these stel- lar
systems. We have ta... | 1993-05-13 | 2007-05-23 | [
"astro-ph"
] | Simone R. Zaggia, Massimo Capaccioli, and Giampaolo Piotto |
astro-ph/9305014 | Charged Boson Stars and Vacuum Instabilities | We consider charged boson stars and study their effect on the structure of
the vacuum. For very compact particle like ``stars", with constituent mass
$m_{*}$ close to the Planck mass $m_{Pl}$, i.e. $m_{*}^{2} = {\cal O} (\alpha
m_{Pl}^{2})$, we argue that there is a limiting total electric charge $Z_c$,
which, primaril... | 1993-05-12 | 2019-08-17 | [
"astro-ph",
"gr-qc"
] | P.Jetzer, P.Liljenberg, B.-S.Skagerstam |
astro-ph/9305015 | Gravitational Waves and $\gamma$-Ray Bursts | Coalescing binaries in distant galaxies are one of the most promising sources
of gravitational waves detectable by the LIGO project.$^{[1-5]}$ They are also
a copious source of neutrinos,$^{[1]}$ however these neutrino pulses are far
too weak to be detected on earth. Several years ago Eichler \etal$\,$$^{[6]}$
suggeste... | 1993-05-12 | 2009-10-22 | [
"astro-ph",
"gr-qc"
] | Christopher S. Kochanek and Tsvi Piran |
astro-ph/9305011 | Structure Formation with Cold + Hot Dark Matter | We report results from high-resolution particle-mesh (PM) N-body simulations
of structure formation in an $\Omega=1$ cosmological model with a mixture of
Cold plus Hot Dark Matter (C+HDM) having $\Omega_{\rm cold}=0.6$,
$\Omega_\nu=0.3$, and $\Omega_{\rm baryon}=0.1$. We present analytic fits to
the C+HDM power spectra... | 1993-05-12 | 2010-11-30 | [
"astro-ph"
] | Anatoly Klypin, Jon Holtzman, Joel Primack, and Eniko Regos |
astro-ph/9305016 | \bf Combustion Gasdynamics in Proto-Neutron Stars | The possible conversion of neutron matter to strange matter and its relevance
to astrophysical problems are discussed. Particular attention is paid to the
{\it form} in which this hypothetical burning process should be propagated in
dense matter and to the {\it moment} when it should start. | 1993-05-12 | 2007-05-23 | [
"astro-ph"
] | J.E.Horvath |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.