3 papers
astro-ph.GA2019
COS Observations of the Cosmic Web: A Search for the Cooler Components of a Hot, X-ray Identified Filament
Thomas Connor, Fakhri S. Zahedy, Hsiao-Wen Chen +3
In the local universe, a large fraction of the baryon content is believed to exist as diffuse gas in filaments. While this gas is directly observable in X-ray emission around clust…
astro-ph.GA2019
A metal-poor damped Ly-alpha system at redshift 6.4
Eduardo Banados, Michael Rauch, Roberto Decarli +9
We identify a strong Ly-alpha damping wing profile in the spectrum of the quasar P183+05 at z=6.4386. Given the detection of several narrow metal absorption lines at z=6.40392, the…
astro-ph.GA2019
Heavy Element Absorption Systems at : Metal-Poor Neutral Gas and a Diminishing Signature of Highly Ionized Circumgalactic Matter
T. J. Cooper, R. A. Simcoe, K. L. Cooksey +5
Ratios of different ions of the same element encode ionization information independently from relative abundances in quasar absorption line systems, crucial for understanding the m…