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Simulations of Damped Lyman-Alpha and Lyman Limit Absorbers in Different Cosmologies: Implications for Structure Formation at High Redshift
Jeffrey P. Gardner, Neal Katz, Lars Hernquist +1
We use hydrodynamic cosmological simulations to study damped Lyman-alpha (DLA) and Lyman limit (LL) absorption at redshifts z=2-4 in five variants of the cold dark matter scenario.…
Reconstruction Analysis of the IRAS Point Source Catalog Redshift Survey
Vijay K. Narayanan, David H. Weinberg, E. Branchini +5
We present the results of reconstruction analysis of the galaxy distribution in a spherical region of radius 50 Mpc/h centered on the Local Group, as mapped by the IRAS Point Sourc…
Evolution of Clustering and Bias in a Lambda-CDM Universe
Romeel Davé, Lars Hernquist, Neal Katz +1
We determine the evolution from of the galaxy and mass correlation functions and bias factor in a Mpc CDM hydrodynamic simulation with kpc resolut…
The Nature of Lyman Break Galaxies in Cosmological Hydrodynamic Simulations
Romeel Davé, Jeffrey P. Gardner, Lars Hernquist +2
What type of objects are being detected as "Lyman break galaxies"? Are they predominantly the most massive galaxies at that epoch, or are many of them smaller galaxies un…
High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data II: The Spring Equatorial Stripe
SDSS Collaboration, Xiaohui Fan
This is the second paper in a series aimed at finding high-redshift quasars from five-color (u'g'r'i'z') imaging data taken along the Celestial Equator by the Sloan Digital Sky Sur…
Dark Energy and the CMB
S. Dodelson, L. Knox
We find that current Cosmic Microwave Background (CMB) anisotropy data strongly constrain the mean spatial curvature of the Universe to be near zero, or, equivalently, the total en…
What is Beta?
Andreas A. Berlind, Vijay K. Narayanan, David H. Weinberg
Measurements of the cosmological density parameter (Omega) using techniques that exploit the gravity-induced motions of galaxies yield, in linear perturbation theory, the degenerat…
Theoretical Modeling of the High Redshift Galaxy Population
David H. Weinberg, Romeel Dave', Jeffrey P. Gardner +2
We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic simulations in modeling the high redshift galaxy population. We present…
The Effects of Gas Dynamics, Cooling, Star Formation, and Numerical Resolution in Simulations of Cluster Formation
G. F. Lewis, A. Babul, N. Katz +3
We present the analysis of a suite of simulations of a Virgo mass galaxy cluster. Undertaken within the framework of standard cold dark matter cosmology, these simulations were per…
High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data
SDSS Collaboration, X. Fan
We present photometric and spectroscopic observations of 15 high-redshift quasars (z > 3.6) discovered from ~140 deg^2 of five-color (u'g'r'i'z') imaging data taken by the Sloan Di…
Topology from the Simulated Sloan Digital Sky Survey
Wesley N. Colley, J. Richard Gott, III +3
We measure the topology (genus curve) of the galaxy distribution in a mock redshift catalog designed to resemble the upcoming Sloan Digital Sky Survey (SDSS). The catalog, drawn fr…