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Small Scale Structure and High Redshift HI
David H. Weinberg, Lars Hernquist, Neal Katz +1
Cosmological simulations with gas dynamics suggest that the Lyman-alpha forest is produced mainly by "small scale structure" --- filaments and sheets that are the high redshift ana…
Cooling Flows and Metallicity Gradients in Clusters of Galaxies
Andreas Reisenegger, Jordi Miralda-Escude, Eli Waxman
The X-ray emission by hot gas at the centers of clusters of galaxies is commonly modeled assuming the existence of steady-state, inhomogeneous cooling flows. We derive the metallic…
The Lyman Alpha Forest from Gravitational Collapse in the CDM+Lambda Model
Jordi Miralda-Escude, Renyue Cen, Jeremiah P. Ostriker +1
We model the $\lya$ forest in a spatially flat, CDM model with , with an Eulerian hydrodynamic simulation, and find that the intergalactic, photoionized gas collapses into s…
Damped Lyman-alpha and Lyman Limit Absorbers in the Cold Dark Matter Model
Neal Katz, David H. Weinberg, Lars Hernquist +1
We study the formation of damped \lya and Lyman limit absorbers in a hierarchical clustering scenario using a gas dynamical simulation of an , cold dark matter universe. In t…
The Lyman-alpha Forest in the Cold Dark Matter Model
Lars Hernquist, Neal Katz, David H. Weinberg +1
Cosmological simulations with gas provide a detailed description of the intergalactic medium, making possible predictions of neutral hydrogen absorption in the spectra of backgroun…
The Mass Distribution in Clusters of Galaxies from Weak and Strong Lensing
Jordi Miralda-Escude
This paper is intended as an introduction to the theory of weak lensing. A review of the inversion formula introduced by Kaiser and Squires is presented. We then prove the formula…