43 citations · 122 across the 16 of their papers we have counts for
13 papers · 1 filter
High-S/N Quasar Observations with HST/COS: Deep Fields for Spectroscopy
Andrew J. Fox, Jerry Kriss, Philipp Richter +49
Hubble is still in prime observing condition for making transformative discoveries in UV astronomy. In this white paper we describe the science case for a deep (S/N>30) UV spectros…
Low Metallicity Gas on the Outskirts of the Local Group: the Circumgalactic Medium of Sextans B
Andrew J. Fox, Sapna Mishra, Frances H. Cashman +6
We present a UV absorption-line analysis of the circumgalactic medium (CGM) of Sextans B, a dwarf irregular galaxy at 1.3 Mpc distance on the outer frontier of the Local Group. Usi…
Project AMIGA: The Inner Circumgalactic Medium of Andromeda from Thick Disk to Halo
Nicolas Lehner, J. Christopher Howk, Lucy Collins +22
The inner circumgalactic medium (CGM) of galaxies, where disk and halo processes intersect, remains poorly characterized despite its critical role in regulating galaxy evolution. W…
Characterizing gas flows through observations of the disk-CGM interface with the HWO
Sanchayeeta Borthakur, Joseph N. Burchett, Frances Cashman +5
How gas gets into, through, and out of galaxies is critical to understanding galactic ecosystems. The disk-CGM interface region is uniquely suited for studying processes that drive…
Ultraviolet Properties of Multi-phase Gas Toward the Inner Galaxy
Frances H. Cashman, Andrew J. Fox, Debopam Som +6
We present a systematic study of the multi-phase interstellar gas in the Inner Galaxy using HST/STIS absorption spectroscopy of 16 massive stars located at spectroscopic distances…
The Metallicities of Five Small High-Velocity Clouds
Trisha Ashley, Andrew J. Fox, Felix J. Lockman +5
High-velocity clouds (HVCs) are multi-phase gas structures whose velocities (|v_LSR|>100 km/s) are too high to be explained by Galactic disk rotation. While large HVCs are well cha…
Observations of a Magellanic Corona
Dhanesh Krishnarao, Andrew J. Fox, Elena D'Onghia +6
The Large and Small Magellanic Clouds (LMC/SMC) are the closest major satellite galaxies of the Milky Way. They are likely on their first passage on an infalling orbit towards our…
The HI Column Density Distribution of the Galactic Disk and Halo
David M. French, Andrew J. Fox, Bart P. Wakker +8
We present a census of neutral gas in the Milky Way disk and halo down to limiting column densities of (HI) cm using measurements of HI Lyman-series absorpti…
Evidence for a Rotational Component in the Circumgalactic Medium of Nearby Galaxies
David M. French, Bart P. Wakker
We present results of a study comparing the relative velocity of absorbers to the rotation velocity of nearby galaxy disks in the local universe (). We have…
Completing the Hydrogen Census in the Circumgalactic Medium at z~0
D. J. Pisano, A. Fox, D. French +4
Over the past decade, Lyman-alpha and metal line absorption observations have established the ubiquity of a gas-rich circumgalactic medium (CGM) around star-forming galaxies at z~0…
Understanding the circumgalactic medium is critical for understanding galaxy evolution
Molly S. Peeples, Peter Behroozi, Rongmon Bordoloi +69
Galaxies evolve under the influence of gas flows between their interstellar medium and their surrounding gaseous halos known as the circumgalactic medium (CGM). The CGM is a major…
Probing Large Galaxy Halos at with Automated -Absorption Matching
David M. French, Bart P. Wakker
We present initial results from an ongoing large-scale study of the circumgalactic medium in the nearby Universe ( km/s), using archival Cosmic Origins Spectrograph…
A Low Metallicity Molecular Cloud In The Lower Galactic Halo
Audra K. Hernandez, Bart P. Wakker, Robert A. Benjamin +5
We find evidence for the impact of infalling, low-metallicity gas on the Galactic disk. This is based on FUV absorption line spectra, 21-cm emission line spectra, and FIR mapping t…