70 citations · 102 across the 4 of their papers we have counts for
6 papers · 1 filter
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…
First Detection of Molecular Gas in the Giant Low Surface Brightness Galaxy Malin 1
Gaspar Galaz, Jorge González-López, Viviana Guzmán +17
After over three decades of unsuccessful attempts, we report the first detection of molecular gas emission in Malin 1, the largest spiral galaxy observed to date, and one of the mo…
Project AMIGA: The Circumgalactic Medium of Andromeda
Nicolas Lehner, Samantha C. Berek, J. Christopher Howk +22
Project AMIGA (Absorption Maps In the Gas of Andromeda) is a large ultraviolet Hubble Space Telescope program, which has assembled a sample of 43 QSOs that pierce the circumgalacti…
The Red Dead Redemption Survey of Circumgalactic Gas About Massive Galaxies. I. Mass and Metallicity of the Cool Phase
Michelle A. Berg, J. Christopher Howk, Nicolas Lehner +6
We present a search for HI in the circumgalactic medium (CGM) of 21 massive (), luminous red galaxies (LRGs) at . Using UV spectro…
Quantifying the AGN-driven outflows in ULIRGs (QUADROS) II: evidence for compact outflow regions from HST [OIII] imaging observations
C. Tadhunter, J. Rodríguez Zaurín, M. Rose +7
The true importance of the warm, AGN-driven outflows for the evolution of galaxies remains uncertain. Measurements of the radial extents of the outflows are key for quantifying the…
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…