6 papers
FOGGIE X: Characterizing the Small-Scale Structure of the CGM and its Imprint on Observables
Ramona Augustin, Jason Tumlinson, Molly S. Peeples +11
One of the main unknowns in galaxy evolution is how gas flows into and out of galaxies in the circumgalactic medium (CGM). Studies observing the CGM in absorption using multiple or…
The Warm-Hot Disk-Halo Interface Below the Perseus Spiral Arm
Ananya Goon Tuli, Nicolas Lehner, J. Christopher Howk +3
The Milky Way's disk-halo interface mediates energy and mass exchange between the interstellar thin disk and the halo. In the first detailed study of the Perseus arm's disk-halo in…
Prospects for studying million-degree gas in the Milky Way halo using the forbidden optical [FeX] and [FeXIV] intersystem lines
P. Richter, F. Ruenger, N. Lehner +5
The Milky Way is surrounded by large amounts of hot gas at temperatures T>10^6 K, which represents a major baryon reservoir. We here explore the prospects of studying the hot coron…
Tilsotua: Reproducing Slitmask Sky Positions for use with the LRIS Multislit Archive
Jessica Sullivan, J. Christopher Howk, Nicolas Lehner +2
We present tilsotua, a code that calculates sky positions of the slits from Low-Resolution Imaging Spectrograph (LRIS) slitmasks used in multislit observations. Raw data for the Ke…
A Global Census of Metals in the Universe
Saloni Deepak, J. Christopher Howk, Nicolas Lehner +1
We present a census of the mass density of metals and their evolution with cosmic time on a global scale throughout the Universe, synthesizing robust estimates of metals in stars,…
SDSS-IV MaStar: Quantification and Abatement of Interstellar Absorption in the Largest Empirical Stellar Spectral Library
Kate H. R. Rubin, Kyle B. Westfall, Claudia Maraston +6
We assess the impact of CaII 3934,3969 and NaI 5891,5897 absorption arising in the interstellar medium (ISM) on the SDSS-IV MaNGA Stellar Library (MaStar) and produce corrected spe…