activity
20122026
most citedTracing Outflows and Accretion: A Bimodal Azimuthal Dependence of MgII Absorption

215 citations · 1.7k across the 53 of their papers we have counts for

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Showing 2020Show all

8 papers · 1 filter

astro-ph.GA2020★ 4 cited

Spatial Distribution of OVI Covering Fractions in the Simulated Circumgalactic Medium

Rachel Marra, Christopher W. Churchill, Glenn G. Kacprzak +6

We use adaptive mesh refinement cosmological simulations to study the spatial distribution and covering fraction of OVI absorption in the circumgalactic medium (CGM) as a function…

astro-ph.GA2020★ 30 cited

Cloud-by-cloud, multiphase, Bayesian modeling: Application to four weak, low ionization absorbers

Sameer, J. C. Charlton, J. M. Norris +8

We present a new method aimed at improving the efficiency of component by component ionization modeling of intervening quasar absorption line systems. We carry out cloud-by-cloud,…

astro-ph.GA2020★ 14 cited

Disentangling the multi-phase circumgalactic medium shared between a dwarf and a massive star-forming galaxy at z~0.4

Hasti Nateghi, Glenn G. Kacprzak, Nikole M. Nielsen +4

The multi-phase circumgalactic medium (CGM) arises within the complex environment around a galaxy, or collection of galaxies, and possibly originates from a wide range of physical…

astro-ph.GA2020★ 15 cited

Evidence for galaxy quenching in the green valley caused by a lack of a circumgalactic medium

Glenn G. Kacprzak, Nikole M. Nielsen, Hasti Nateghi +5

The relationship between a galaxy's properties and its circumgalactic medium (CGM) provides a unique view of how galaxies evolve. We present an interesting edge-on (i=86 degrees) d…

astro-ph.GA2020★ 19 cited

MgII Absorbers in High Resolution Quasar Spectra. I. Voigt Profile Models

Christopher W. Churchill, Jessica L. Evans, Bryson Stemock +3

We present the Voigt profile (VP) models, column densities, Doppler b parameters, kinematics, and distribution of components for 422 MgII absorbers found in a survey of 249 HIRES a…

astro-ph.GA2020★ 29 cited

Evolution of CIV Absorbers I. The Cosmic Incidence

Farhanul Hasan, Christopher W. Churchill, Bryson Stemock +7

We present a large high-resolution study of the distribution and evolution of CIV absorbers, including the weakest population with equivalent widths ~Å. By searching 369 h…

astro-ph.GA2020★ 6 cited

Low Mass Group Environments have no Substantial Impact on the Circumgalactic Medium Metallicity

Stephanie K. Pointon, Glenn G. Kacprzak, Nikole M. Nielsen +4

We explore how environment affects the metallicity of the circumgalactic medium (CGM) using 13 low mass galaxy groups (2-5 galaxies) at identified nea…

astro-ph.GA2020★ 26 cited

The CGM at Cosmic Noon with KCWI: Outflows from a Star-forming Galaxy at z=2.071

Nikole M. Nielsen, Glenn G. Kacprzak, Stephanie K. Pointon +3

We present the first results from our CGM at Cosmic Noon with KCWI program to study gas flows in the circumgalactic medium (CGM) at . Combining the power of a high-resolutio…