17 papers
Rotation Velocities of Two Low Luminosity Field Galaxies
James Pizagno, Michael R. Blanton, David H. Weinberg +2
We present H-alpha rotation curves of two low luminosity field galaxies with r-band absolute magnitudes M_r=-13.9^{+0.8}_{-0.5} and M_r=-14.7^{+0.3}_{-0.2} (for h=0.7; the large er…
Studying Structure Formation with the Sloan Digital Sky Survey
David H. Weinberg
I review recent SDSS results related to galaxies and large scale structure, including: (1) discovery of coherent, unbound structures in the stellar halo, (2) demonstration that Pal…
Sub-mm Galaxies in Cosmological Simulations
Mark A. Fardal, Neal Katz, David H. Weinberg +2
We study the predicted sub-mm emission from massive galaxies in a Lambda-CDM universe, using hydrodynamic cosmological simulations. Assuming that most of the emission from newly fo…
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…
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…