215 citations · 1.7k across the 53 of their papers we have counts for
53 papers
Circumgalactic CIV Absorption Found Only Within 30 Degrees of the Minor Axis of Present-Epoch Galaxies
Mark A. Croom, Christopher W. Churchill, Bart Wakker +2
We studied CIV 1548,1550 absorption in the circumgalactic medium (CGM) of 88 isolated, bright (L_B > 0.2L*_B) galaxies at z < 0.03 selected without prior knowledge of CGM absorptio…
The Mysterious Case of Iron in XMPs: Anomalous High log(Fe/O) Observed in Extremely Metal-Poor Galaxies HSCJ1631+4426 and SDSSJ0811+4730
Aaron Myszka, Themiya Nanayakkara, Karl Glazebrook +8
We present integral field spectroscopic observations of two local extremely metal-poor galaxies (XMPs), HSCJ1631+4426 and SDSSJ0811+4730, obtained with the Keck Cosmic Web Imager (…
The chemodynamical signature of coherent metal-poor inflow and enriched recycled accretion in the cool circumgalactic medium
Glenn G. Kacprzak, Jerrard Doran, Sameer +7
The azimuthal and kinematic structure of the CGM is often interpreted as planar accretion and bipolar outflows, yet direct metallicity evidence for this picture remains ambiguous.…
Ardua: Unveiling the Baryon Cycle from Stars to the Cosmic Web
Carlos J. Vargas, Caroline Kilbourne, Haeun Chung +29
The circumgalactic medium (CGM) -- the multiphase gas reservoirs surrounding galaxies -- remains the least understood component of the baryon cycle governing galaxy growth, despite…
Ultra-strong MgII absorbers trace both inflowing and outflowing gas: insights from dual down-the-barrel and quasar sightlines
Antonia Fernández-Figueroa, Glenn G. Kacprzak, Tania M. Barone +4
We present Keck/LRIS spectroscopy of seven isolated galaxy-quasar pairs at , each exhibiting ultra-strong MgII absorption ( Å), probing both…
COS-EDGES: Co-rotation and Kinematic Stratification of the Multi-Phase CGM Around Edge-On Galaxies
Glenn G. Kacprzak, Benjamin D. Oppenheimer, Nikole M. Nielsen +10
We present the first results from the COS-EDGES survey, targeting the kinematic connection between the ISM and multi-phase circumgalactic medium (CGM) in nine isolated, edge-on gal…
The AGEL Survey Data Release 2: A Gravitational Lens Sample for Galaxy Evolution and Cosmology
Tania M. Barone, Keerthi Vasan G. C., Kim-Vy Tran +31
The ASTRO 3D Galaxy Evolution with Lenses (AGEL) Survey is an ongoing effort to spectroscopically confirm a diverse sample of gravitational lenses with high spatial resolution imag…
Gravitational Lensing Reveals Cool Gas within 10-20 kpc around a Quiescent Galaxy
Tania M. Barone, Glenn G. Kacprzak, James W. Nightingale +12
While quiescent galaxies have comparable amounts of cool gas in their outer circumgalactic medium (CGM) compared to star-forming galaxies, they have significantly less interstellar…
Unveiling the Complex Circumgalactic Medium: A Comparative Study of Merging and Non-Interacting Galaxy Groups
Antonia Fernandez-Figueroa, Glenn G. Kacprzak, Nikole M. Nielsen +5
While most galaxies live in group environments where they undergo an accelerated evolution, the characteristics of their circumgalactic medium (CGM) remain uncertain. We present an…
DUVET: Resolved direct metallicity measurements in the outflow of starburst galaxy NGC 1569
Magdalena J. Hamel-Bravo, Deanne B. Fisher, Danielle Berg +15
We present the results of direct-method metallicity measurements in the disk and outflow of the low-metallicity starburst galaxy NGC 1569. We use Keck Cosmic Web Imager observation…
Cloud-by-cloud Multiphase Investigation of the Circumgalactic Medium of Low-redshift Galaxies
Sameer, Jane C. Charlton, Bart P. Wakker +10
The pervasive presence of warm gas in galaxy halos suggests that the circumgalactic medium (CGM) is multiphase in its ionization structure and complex in its kinematics. Some recen…
DUVET: sub-kiloparsec resolved star formation driven outflows in a sample of local starbursting disk galaxies
Bronwyn Reichardt Chu, Deanne B. Fisher, John Chisholm +13
We measure resolved (kiloparsec-scale) outflow properties in a sample of 10 starburst galaxies from the DUVET (Deep near-UV observations of Entrained gas in Turbulent galaxies) sam…
Signatures of gas flows-II: Connecting the kinematics of the multiphase circumgalactic medium to galaxy rotation
Hasti Nateghi, Glenn G. Kacprzak, Nikole M. Nielsen +4
The multiphase CGM hosts critical processes that affect galaxy evolution such as accretion and outflows. We searched for evidence of these phenomena by using the EW co-rotation fra…
Signatures of gas flows-I: Connecting the kinematics of the HI circumgalactic medium to galaxy rotation
Hasti Nateghi, Glenn G. Kacprzak, Nikole M. Nielsen +5
The CGM hosts many physical processes with different kinematic signatures that affect galaxy evolution. We address the CGM-galaxy kinematic connection by quantifying the fraction o…
An emission map of the disk-circumgalactic medium transition in starburst IRAS 08339+6517
Nikole M. Nielsen, Deanne B. Fisher, Glenn G. Kacprzak +5
Most of a galaxy's mass is located out to hundreds of kiloparsecs beyond its stellar component. This diffuse reservoir of gas, the circumgalactic medium (CGM), acts as the interfac…
DUVET Survey: Mapping Outflows in the Metal-Poor Starburst Mrk 1486
Daniel K. McPherson, Deanne B. Fisher, Nikole M. Nielsen +11
We present a method to characterize star-formation driven outflows from edge-on galaxies and apply this method to the metal-poor starburst galaxy, Mrk 1486. Our method uses the dis…
DUVET: Spatially Resolved Observations of Star Formation Regulation via Galactic Outflows in a Starbursting Disk Galaxy
Bronwyn Reichardt Chu, Deanne B. Fisher, Alberto D. Bolatto +14
We compare 500~pc scale, resolved observations of ionised and molecular gas for the starbursting disk galaxy IRAS08339+6517, using measurements from KCWI and NOEMA. We…
A Complex Multiphase DLA Associated with a Compact Group at z=2.431 Traces Accretion, Outflows, and Tidal Streams
Nikole M. Nielsen, Glenn G. Kacprzak, Sameer +4
As part of our program to identify host galaxies of known z=2-3 MgII absorbers with the Keck Cosmic Web Imager (KCWI), we discovered a compact group giving rise to a z=2.431 DLA wi…
Examining quasar absorption-line analysis methods: the tension between simulations and observational assumptions key to modelling clouds
Rachel Marra, Christopher W. Churchill, Glenn G. Kacprzak +3
A key assumption in quasar absorption line studies of the circumgalactic medium (CGM) is that each absorption component maps to a spatially isolated "cloud" structure that has sing…
The DUVET Survey: Resolved Maps of Star Formation Driven Outflows in a Compact, Starbursting Disk Galaxy
Bronwyn Reichardt Chu, Deanne B. Fisher, Nikole M. Nielsen +9
We study star formation driven outflows in a starbursting disk galaxy, IRAS08339+6517, using spatially resolved measurements from the Keck Cosmic Web Imager (KCWI). We…
Extreme Variation in Star Formation Efficiency Across a Compact, Starbursting Disk Galaxy
D. B. Fisher, A. D. Bolatto, K. Glazebrook +4
We report on the internal distribution of star formation efficiency in IRAS 08339+6517 (hereafter IRAS08), using 200~pc resolution CO(2-1) observations from NOEMA. The molecu…
Probing the physicochemical properties of the Leo Ring and the Leo I group
Sameer, Jane Charlton, Glenn Kacprzak +6
We present an absorption line study of the physical and chemical properties of the Leo HI Ring and the Leo I Group as traced by 11 quasar sightlines spread over a 600 kpc X 800 kpc…
The DUVET Survey: Direct -based metallicity mapping of metal-enriched outflows and metal-poor inflows in Mrk 1486
Alex J. Cameron, Deanne B. Fisher, Daniel McPherson +10
We present electron temperature () maps for the edge-on system Mrk 1486, affording "direct-method" gas-phase metallicity measurements across (4.1 kpc)…
Evolution of CIV Absorbers. II. Where does CIV live?
Farhanul Hasan, Christopher W Churchill, Bryson Stemock +4
We use the observed cumulative statistics of CIV absorbers and dark matter halos to infer the distribution of CIV-absorbing gas relative to galaxies at redshifts $0\!\leq\!z\!\leq\…