Search
Now showing items 1-4 of 4
Aligned metal absorbers and the ultraviolet background at the end of reionization
(Oxford University Press, 2018)
We use observations of spatially-aligned C ii, C iv, Si ii, Si iv, and O i absorbers to probe the
slope and intensity of the ultraviolet background (UVB) at z ∼ 6. We accom- plish this by comparing
observations with ...
The COS-Halos survey: Rationale, design and a census of circumgalactic neutral hydrogen
(IOP Publishing, 2013)
We present the design and methods of the COS-Halos survey, a systematic investigation of the gaseous halos of
44 z = 0.15–0.35 galaxies using background QSOs observed with the Cosmic Origins Spectrograph aboard the
Hubble ...
The high-ion content and kinematics of low-redshift lyman limit systems
(The American Astronomical Society, 2013)
We study the high-ion content and kinematics of the circumgalactic medium around low-redshift galaxies using a sample of 23 Lyman limit systems (LLSs) at 0.08 < z < 0.93 observed with the Cosmic Origins Spectrograph on ...
The neutral hydrogen content of galaxies in cosmological hydrodynamic simulations
(Oxford University Press, 2013)
We examine the global HI properties of galaxies in quarter billion particle cosmological
simulations using GADGET-2, focusing on howgalactic outflows impactHI content.We consider
four outflow models, including a new one ...