11 papers
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…
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…
XRISM detection of the 6.4 keV Fe K line in the radio galaxy Cygnus A
Anwesh Majumder, T. Heckman, L. Gu +7
We detail the spectral analysis of a 170 ks XRISM Resolve observation of the core of Cygnus A. The high spectral resolution of Resolve have enabled us to probe the inner accretion…
Tracing Radio AGN-Driven Quenching in Post-Starburst Galaxies at Cosmic Noon
Pallavi Patil, Kate Rowlands, Katherine Alatalo +14
We present a radio continuum study of photometrically selected cosmic noon (0.5<z<3) post-starburst galaxies (PSBs) in the UKIDSS Deep Survey (UDS) field to assess if radio-mode Ac…
Galactic Rain: Cool Gas Inflows in Red Geyser Galaxies and Their Connection to AGN Activity and Interactions
Arian Moghni, Namrata Roy, Timothy M. Heckman +3
Red geysers are a population of massive (log[M/M]~10.5), quiescent galaxies that exhibit large-scale but weak, bi-symmetric ionized gas outflows, interpreted as signatures…
A Multiwavelength Evaluation of AGN in the Post-Starburst Phase
Yuanze Luo, Kate Rowlands, Katherine Alatalo +14
The quenching of star formation is a crucial phase in galaxy evolution. Although active galactic nuclei (AGN) feedback has been proposed as a key driver of this transition, the lac…