7.7k citations · 44.4k across the 493 of their papers we have counts for
29 papers · 1 filter
On the CGM Fundamental Plane: The Halo Mass Dependency of Circumgalactic HI
Rongmon Bordoloi, J. Xavier Prochaska, Jason Tumlinson +3
We analyze the equivalent widths of HI Ly- () absorption from the inner (R < 160 kpc) circumgalactic medium (CGM) of 85 galaxies at with stellar masses …
Quasar 2175 Å dust absorbers II: Correlation analysis and relationship with other absorption line systems
Jingzhe Ma, Jian Ge, J. Xavier Prochaska +6
We present the cold neutral content (H I and C I gas) of 13 quasar 2175 Å dust absorbers (2DAs) at = 1.6 - 2.5 to investigate the correlation between the presence of the UV…
ALMA + VLT observations of a Damped Lyman-α absorbing galaxy: Massive, wide CO emission, gas-rich but with very low SFR
P. Møller, L. Christensen, M. A. Zwaan +7
We are undertaking an ALMA survey of molecular gas in galaxies selected for their strong HI absorption, so-called DLA/sub-DLA galaxies. Here we report CO(2-1) detection from a DLA…
The Astrophysical Consequences of Intervening Galaxy Gas on Fast Radio Bursts
J. Xavier Prochaska, Marcel Neeleman
We adopt and analyze results on the incidence and physical properties of damped Ly systems (DLAs) to predict the astrophysical impact of gas in galaxies on observations of Fast…
A Neutron Star Binary Merger Model for GW170817/GRB170817a/SSS17a
Ariadna Murguia-Berthier, Enrico Ramirez-Ruiz, Charles D. Kilpatrick +14
The merging neutron star gravitational wave event GW170817 has been observed throughout the entire electromagnetic spectrum from radio waves to -rays. The resulting energetics,…
Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
M. R. Drout, A. L. Piro, B. J. Shappee +41
On 2017 August 17, gravitational waves were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB170817A. An optical transient so…
The Unprecedented Properties of the First Electromagnetic Counterpart to a Gravitational Wave Source
Matthew R. Siebert, Ryan J. Foley, Maria R. Drout +15
We discovered Swope Supernova Survey 2017a (SSS17a) in the LIGO/Virgo Collaboration (LVC) localization volume of GW170817, the first detected binary neutron star (BNS) merger, only…
The Old Host-Galaxy Environment of SSS17a, the First Electromagnetic Counterpart to a Gravitational Wave Source
Y. -C. Pan, C. D. Kilpatrick, J. D. Simon +16
We present an analysis of the host-galaxy environment of Swope Supernova Survey 2017a (SSS17a), the discovery of an electromagnetic counterpart to a gravitational wave source, GW17…
Electromagnetic Evidence that SSS17a is the Result of a Binary Neutron Star Merger
Charles D. Kilpatrick, Ryan J. Foley, Daniel Kasen +18
11 hours after the detection of gravitational wave source GW170817 by the Laser Interferometer Gravitational-Wave Observatory and Virgo Interferometers, an associated optical trans…
The gas and stellar mass of low-redshift damped Lyman- absorbers
Nissim Kanekar, Marcel Neeleman, J. Xavier Prochaska +1
We report Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet and Arecibo Telescope H{\sc i} 21cm spectroscopic studies of six damped and sub-damped Lyman- absorb…
First Data Release of the COSMOS Lyman-Alpha Mapping And Tomography Observations: 3D Lyman- Forest Tomography at 2.05 < z < 2.55
Khee-Gan Lee, Alex Krolewski, Martin White +21
Faint star-forming galaxies at can be used as alternative background sources to probe the Lyman- forest in addition to quasars, yielding high sightline densities tha…
MAHALO Deep Cluster Survey I. Accelerated and enhanced galaxy formation in the densest regions of a protocluster at z=2.5
Rhythm Shimakawa, Tadayuki Kodama, Masao Hayashi +6
We carried out deep H narrowband imaging with 10 hours net integrations towards the young protocluster, USS1558003 at with the Subaru Telescope. This system is compo…
Inspiraling Halo Accretion Mapped in Lyman- Emission around a Quasar
Fabrizio Arrigoni Battaia, J. Xavier Prochaska, Joseph F. Hennawi +5
In an effort to search for Ly emission from circum- and intergalactic gas on scales of hundreds of kpc around quasars, and thus characterise the physical properties of…
Circumgalactic Oxygen Absorption and Feedback
William G. Mathews, J. Xavier Prochaska
OVI absorption in quasar spectra caused by intervening circumgalactic atmospheres suggests a downturn in the atmospheric column density in sightlines passing beyond about 100 kpc f…
Quasar 2175 Å dust absorbers I: metallicity, depletion pattern, and kinematics
Jingzhe Ma, Jian Ge, Yinan Zhao +4
We present 13 new 2175 Å dust absorbers at z_abs = 1.0 - 2.2 towards background quasars from the Sloan Digital Sky Survey. These absorbers are examined in detail using data from th…
The Little Cub: Discovery of an Extremely Metal-Poor Star-Forming Galaxy in the Local Universe
Tiffany Hsyu, Ryan J. Cooke, J. Xavier Prochaska +1
We report the discovery of the Little Cub, an extremely metal-poor star-forming galaxy in the local Universe, found in the constellation Ursa Major (a.k.a. the Great Bear). We firs…
The Second Data Release of the KODIAQ Survey
John M. O'Meara, Nicolas Lehner, J. Christopher Howk +5
We present and make publicly available the second data release (DR2) of the Keck Observatory Database of Ionized Absorption toward Quasars (KODIAQ) survey. KODIAQ DR2 consists of a…
Witnessing galaxy assembly in an extended z~3 structure
Michele Fumagalli, Ruari Mackenzie, James Trayford +9
We present new observations acquired with the Multi Unit Spectroscopic Explorer instrument on the Very Large Telescope in a quasar field that hosts a high column-density damped Lyα…
The Circumgalactic Medium of Submillimeter Galaxies. II. Unobscured QSOs within Dusty Starbursts and QSO Sightlines with Impact Parameters below 100 Kiloparsec
Hai Fu, Jacob Isbell, Caitlin M. Casey +4
We present Atacama Large Millimeter/submillimeter Array (ALMA) 870um observations of 29 bright Herschel sources near high-redshift QSOs. The observations confirm that 20 of the Her…
Project AMIGA: A Minimal Covering Factor for Optically Thick Circumgalactic Gas Around the Andromeda Galaxy
J. Christopher Howk, Christopher B. Wotta, Michelle A. Berg +19
We present a deep search for HI 21-cm emission from the gaseous halo of Messier 31 as part of Project AMIGA, a large program Hubble Space Telescope program to study the circumgalac…
Evidence of ongoing AGN-driven feedback in a quiescent post starburst E+A galaxy
Dalya Baron, Hagai Netzer, Dovi Poznanski +2
Post starburst E+A galaxies are thought to have experienced a significant starburst that was quenched abruptly. Their disturbed, bulge-dominated morphologies suggest that they are…
Gas inflow and outflow in an interacting high-redshift galaxy: The remarkable host environment of GRB 080810 at
P. Wiseman, D. A. Perley, P. Schady +5
We reveal multiple components of an interacting galaxy system at through a detailed analysis of the exquisite high-resolution Keck/HIRES spectrum of the afterglow of…
Identification of variability in recent star formation histories of local galaxies based on H/UV ratio
Rhythm Shimakawa, Yusei Koyama, J. Xavier Prochaska +3
Because the timescale of H emission (several tens of Myr) following star formation is significantly shorter than that of UV radiation (a few hundred Myr), the H/UV flux ratio…
Measurement of the small-scale structure of the intergalactic medium using close quasar pairs
Alberto Rorai, Joseph F. Hennawi, Jose Oñorbe +6
The distribution of diffuse gas in the intergalactic medium (IGM) imprints a series of hydrogen absorption lines on the spectra of distant background quasars known as the Lyman-…