Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.6k papers
- University of California, BerkeleyUS2.5k papers
- The Ohio State UniversityUS2.3k papers
- University of ArizonaUS2.1k papers
- Lawrence Berkeley National LaboratoryUS2.1k papers
- SLAC National Accelerator LaboratoryUS2k papers
- University of California, IrvineUS2k papers
- Yale UniversityUS1.9k papers
- University of Wisconsin–MadisonUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- McGill UniversityCA1.9k papers
- University of ChicagoUS1.9k papers
56 papers · 2 filters
The Opacity of the Lyman Alpha Forest and Implications for Omega_{baryon} and the Ionizing Background
M. Rauch, J. Miralda-Escude, W. L. W. Sargent +6
We have measured the distribution function of the flux decrement caused by Lyman alpha forest absorption in a new sample of high resolution QSO spectra. The observations are compar…
Maximum-Likelihood Comparisons of Tully-Fisher and Redshift Data: Constraints on Omega and Biasing
Jeffrey A. Willick, Michael A. Strauss, Avishai Dekel +1
We compare Tully-Fisher (TF) data for 838 galaxies within cz=3000 km/sec from the Mark III catalog to the peculiar velocity and density fields predicted from the 1.2 Jy IRAS redshi…
Keck Spectroscopy of Redshift z~3 Galaxies in the Hubble Deep Field
James D. Lowenthal, David C. Koo, Rafael Guzman +6
We have obtained spectra with the 10-m Keck telescope of a sample of 24 galaxies having colors consistent with star-forming galaxies at redshifts 2<z<4.5 in the Hubble Deep Field (…
Favored Variants of Cold Dark Matter Cosmologies
Rachel S. Somerville, Joel R. Primack
We discuss variants of Cold Dark Matter (CDM) dominated cosmological models that give good agreement with a range of observations. We consider models with hot dark matter, tilt, $Ω…
The Pattern of Correlated X-ray Timing and Spectral Behavior in GRS 1915+105
Xingming Chen, Jean H. Swank, Ronald E. Taam
From data obtained from the PCA in the 2-11 keV and 11-30.5 keV energy range, GRS 1915+105 is seen during RXTE observations between 1996 May and October on two separate branches in…
Distant Galaxy Clusters Identified From Optical Background Fluctuations
Dennis Zaritsky, Amy E. Nelson, Julianne J. Dalcanton +1
We present the first high redshift (0.3 < z < 1.1) galaxy clusters found by systematically identifying optical low surface brightness fluctuations in the background sky. Using spec…
Anisotropies in the Distribution of Satellite Galaxies
Dennis Zaritsky, Rodney Smith, Carlos S. Frenk +1
We find that satellites of isolated disk galaxies at projected radii between 300 and 500 kpc are distributed asymmetrically about the parent galaxy and aligned preferentially with…
More Satellites of Spiral Galaxies
Dennis Zaritsky, Rodney Smith, Carlos Frenk +1
We present a revised and expanded catalog of satellite galaxies of a set of isolated spiral galaxies similar in luminosity to the Milky Way. This sample of 115 satellites, 69 of wh…
Non-Gaussian Fluctuations and Primordial Black Holes from Inflation
James S. Bullock, Joel R. Primack
We explore the role of non-Gaussian fluctuations in primordial black hole (PBH) formation and show that the standard Gaussian assumption, used in all PBH formation papers to date,…
Statistical Tests for CHDM and \LambdaCDM Cosmologies
S. Ghigna, S. Borgani, M. Tucci +3
We apply several statistical estimators to high-resolution N-body simulations of two currently viable cosmological models: a mixed dark matter model, having contributed b…
Constraining the Power Spectrum using Clusters
S. Borgani, L. Moscardini, M. Plionis +6
(Shortened Abstract). We analyze a redshift sample of Abell/ACO clusters and compare them with numerical simulations based on the truncated Zel'dovich approximation (TZA), for a li…
Nucleosynthesis in neutrino-driven winds: II. Implications for heavy element synthesis
R. D. Hoffman, S. E. Woosley, Y. -Z. Qian
During the first 20 seconds of its life, the enormous neutrino luminosity of a neutron star drives appreciable mass loss from its surface. This neutrino-driven wind has been previo…
Nucleosynthesis in neutrino-driven winds: I. The physical conditions
Y. -Z. Qian, S. E. Woosley
During the first 20 seconds of its life, the enormous neutrino luminosity of a neutron star drives appreciable mass loss from its surface. Previous investigations have shown that t…
Intergalactic Helium Absorption in Cold Dark Matter Models
Rupert A. C. Croft, David H. Weinberg, Neal Katz +1
Observations from the HUT and the HST have recently detected HeII absorption along the lines of sight to two high redshift quasars. We use cosmological simulations with gas dynamic…
Extended Perturbation Theory for the Local Density Distribution Function
S. Colombi, F. Bernardeau, F. R. Bouchet +1
Perturbation theory makes it possible to calculate the probability distribution function (PDF) of the large scale density field in the small variance limit. For top hat smoothing a…
Homogeneous Velocity-Distance Data for Peculiar Velocity Analysis. III. The Mark III Catalog of Galaxy Peculiar Velocities
Jeffrey A. Willick, Stephane Courteau, S. M. Faber +3
This is the third in a series of papers in which we assemble and analyze a homogeneous catalog of peculiar velocity data. In Papers I and II, we described the Tully-Fisher (TF) red…
The Best Theory of Cosmic Structure Formation is Cold + Hot Dark Matter (CHDM)
Joel Primack
I have been asked to make the case here that CHDM is the best theory of cosmic structure formation, and indeed I believe that it is the best of all those I have considered if the c…
Substructure in the Globular Cluster System of the Milky Way
A. Burkert, G. Smith
The kinematical and spatial properties of the metal-rich globular clusters in the Galaxy ([Fe/H] > -0.8) indicates that these objects do not comprise a homogeneous population. Thre…
The Structure of Isothermal, Self-gravitating Gas Spheres for Softened Gravity
Jesper Sommer-Larsen, Henrik Vedel, Uffe Hellsten
A theory for the structure of isothermal, self-gravitating gas spheres in pressure equilibrium in a softened gravitational field is developed. The one parameter spline softening pr…
Hydrodynamic and N-body Schemes On An Unstructured, Adaptive Mesh with Applications to Cosmological Simulations
Guohong Xu
The theory and application of numerical methods for unstructured meshes have been improved significantly in recent years. Because the grids can be place arbitrarily in space, unstr…
Superclustering at Redshift Z=0.54
A. J. Connolly, A. S. Szalay, D. C. Koo +4
We present strong evidence for the existence of a supercluster at a redshift of z=0.54 in the direction of Selected Area 68. From the distribution of galaxies with spectroscopic re…
Autofib Redshift Survey: II -- The Evolution of the Galaxy Luminosity Function by Spectral Type
Jeremy Heyl, Matthew Colless, Richard S. Ellis +1
We determine the evolution of the galaxy luminosity function (LF) as a function of spectral type using the Autofib redshift survey, a compendium of over 1700 galaxy redshifts in va…
Large Scale Power Spectrum from Peculiar Velocities Via Likelihood Analysis
S. Zaroubi, I. Zehavi, A. Dekel +2
The power spectrum (PS) of mass density fluctuations, independent of `biasing', is estimated from the Mark III catalog of peculiar velocities using Bayesian statistics. A parametri…
Filament and Shape Statistics: A Quantitative Comparison of Cold + Hot and Cold Dark Matter Cosmologies vs. CfA1 Data
Romeel Davé, Doug Hellinger, Joel Primack +2
A new class of geometric statistics for analyzing galaxy catalogs is presented. Filament statistics quantify filamentarity and planarity in large scale structure in a manner consis…