526 citations · 3k across the 75 of their papers we have counts for
12 papers · 1 filter
Forming Molecular Hydrogen in a Galaxy Halo Through Star Formation Wind Interactions
Brad Koplitz, Sanchayeeta Borthakur, Timothy Heckman +5
Molecular hydrogen (H) is the key ingredient for star formation in galaxies. However, how H is distributed in and around galaxies is an open question in astronomy. We repor…
Asymptotic limits in class- theories and non-Abelian Hodge theory
Thomas W. Grimm, Amineh Mohseni
We develop a non-Abelian Hodge-theoretic refinement of asymptotic limits in type- class- theories, enriching the geometric description of the degenerating UV curve w…
Early Exploration of the Scientific Discovery Space for the Habitable Worlds Observatory
Courtney D. Dressing, Danica Adams, Evelyne Alecian +324
The Habitable Worlds Observatory (HWO) is a future NASA flagship mission concept identified by the Astro2020 Decadal Survey as the highest priority for large space missions. HWO sh…
Lighting Up the CGM: Strong, Jet-Aligned Emission around Radio Galaxies
Namrata Roy, Sanchayeeta Borthakur, Timothy Heckman +1
A primary question within galaxy evolution is how active galactic nuclei (AGN) feedback modifies the circumgalactic medium (CGM). We present a search for faint H emission from t…
Predicted Capabilities of the SPRITE SmallSat for a Low-Redshift Lyman Continuum Emission Survey
Yi Hang Valerie Wong, Brian Fleming, Elena Carlson +13
Ionizing Lyman continuum (LyC; ) radiation from low-redshift () galaxies provides crucial insight into the processes that contributed to cosmi…
Revealing Cosmic Ecosystems with the Hubble Space Telescope in 2030s and Beyond
Sanchayeeta Borthakur, Tanmay Singh, David French +22
Ultraviolet spectroscopy with the Hubble Space Telescope (HST) provides the most direct and sensitive probe of the disk-circumgalactic medium (CGM) interface at radii of 20 kpc, wh…
MusE GAs FLOw and Wind (MEGAFLOW) XIV: Background-Galaxy Absorption Reveals Kiloparsec-Scale Structure in the Cool Circumgalactic Medium
Yucheng Guo, Nicolas F. Bouché, Martin Wendt +9
The properties of the cool (~K) gas in the circumgalactic medium (CGM) are closely linked to the physical mechanisms that create and maintain this multiphase medium. The…
The Small-scale Structures in the Wind of Messier 82
Yucheng Guo, Timothy Heckman, Sanchayeeta Borthakur +10
Small-scale multiphase structure plays a central role in galactic-wind evolution, yet the parsec-scale morphology and excitation of the warm ionised gas remain poorly constrained.…
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…
Analysis of synthetic OVI absorption associated with galaxy groups in SIMBA and TNG50 simulations
Tanmay Singh, Sanchayeeta Borthakur, Dylan Nelson +2
We compare OVI absorption in synthetic spectra from galaxy groups in the SIMBA and TNG50 cosmological hydrodynamic simulations against those observed from the COS-IGrM survey. We s…
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…
AstroSat UV Deep Field IV. An Extended UV disk around a massive spiral galaxy at z=0.67
Pushpak Pandey, Kanak Saha, Sanchayeeta Borthakur
Extended ultraviolet (XUV) emission in nearby disk galaxies supports the inside-out growth scenario through low-efficiency star formation in their outer regions. However, such dete…