151 citations · 699 across the 12 of their papers we have counts for
12 papers
Rabacus: A Python Package for Analytic Cosmological Radiative Transfer Calculations
Gabriel Altay, John Wise
We describe Rabacus, a Python package for calculating the transfer of hydrogen ionizing radiation in simplified geometries relevant to astronomy and cosmology. We present example s…
On the connection between the intergalactic medium and galaxies: The HI-galaxy cross-correlation at z < 1
Nicolas Tejos, Simon L. Morris, Charles W. Finn +9
We present a new optical spectroscopic survey of 1777 'star-forming' ('SF') and 366 'non-star-forming' ('non-SF') galaxies at redshifts z < 1 (2143 in total), 22 AGN and 423 stars,…
The Impact of Different Physical Processes on the Statistics of Lyman-limit and Damped Lyman-alpha Absorbers
Gabriel Altay, Tom Theuns, Joop Schaye +2
We compute the z = 3 neutral hydrogen column density distribution function f(NHI) for 19 simulations drawn from the OWLS project using a post-processing correction for self-shieldi…
Urchin: A Reverse Ray Tracer for Astrophysical Applications
Gabriel Altay, Tom Theuns
We describe URCHIN, a reverse ray tracing radiative transfer scheme optimised to model self-shielding from the post-reionisation ultraviolet (UV) background in cosmological simulat…
Large Scale Structure in Absorption: Gas within and around Galaxy Voids
Nicolas Tejos, Simon L. Morris, Neil H. M. Crighton +3
We investigate the properties of the HI Ly-a absorption systems (Ly-a forest) within and around galaxy voids at z<0.1. We find a significant excess (>99% c.l.) of Ly-a systems at t…
Cold accretion flows and the nature of high column density HI absorption at redshift 3
Freeke van de Voort, Joop Schaye, Gabriel Altay +1
Simulations predict that galaxies grow primarily through the accretion of gas that has not gone through an accretion shock near the virial radius and that this cold gas flows towar…