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More Numerous and Bluer: Companions of the Brightest Little Red Dots Differ from Control Galaxies at , Hinting at Synchronized Black Hole Seed Formation
Fabio Pacucci, C. Megan Urry
The Little Red Dots (LRDs) are compact, red sources at , likely powered by accreting massive black holes. Multiple studies have detected blue companions in…
The Accretion History of AGN: The Spectral Energy Distributions of X-ray Luminous AGN
Connor Auge, David Sanders, Ezequiel Treister +17
Spectral energy distributions (SEDs) from X-ray to far-infrared (FIR) wavelengths are presented for a sample of 1246 X-ray luminous active galactic nuclei (AGN; $L_{0.5-10\rm{keV}}…
Two massive, compact, and dust-obscured candidate galaxies discovered by JWST
Hollis B. Akins, Caitlin M. Casey, Natalie Allen +56
We present a search for extremely red, dust-obscured, galaxies with /NIRCam+MIRI imaging over the first 20 arcmin of publicly-available Cycle 1 data from t…
A candidate runaway supermassive black hole identified by shocks and star formation in its wake
Pieter van Dokkum, Imad Pasha, Maria Luisa Buzzo +13
The interaction of a runaway supermassive black hole (SMBH) with the circumgalactic medium (CGM) can lead to the formation of a wake of shocked gas and young stars behind it. Here…
UGC 4211: A Confirmed Dual Active Galactic Nucleus in the Local Universe at 230 pc Nuclear Separation
Michael J. Koss, Ezequiel Treister, Darshan Kakkad +23
We present multi-wavelength high-spatial resolution (~0.1'', 70 pc) observations of UGC 4211 at z=0.03474, a late-stage major galaxy merger at the closest nuclear separation yet fo…
Using Machine Learning to Determine Morphologies of AGN Host Galaxies in the Hyper Suprime-Cam Wide Survey
Chuan Tian, C. Megan Urry, Aritra Ghosh +9
We present a machine-learning framework to accurately characterize morphologies of Active Galactic Nucleus (AGN) host galaxies within . We first use PSFGAN to decouple host ga…
Morphological Parameters and Associated Uncertainties for 8 Million Galaxies in the Hyper Suprime-Cam Wide Survey
Aritra Ghosh, C. Megan Urry, Aayush Mishra +10
We use the Galaxy Morphology Posterior Estimation Network (GaMPEN) to estimate morphological parameters and associated uncertainties for million galaxies in the Hyper Supr…
COSMOS-Web: An Overview of the JWST Cosmic Origins Survey
Caitlin M. Casey, Jeyhan S. Kartaltepe, Nicole E. Drakos +82
We present the survey design, implementation, and outlook for COSMOS-Web, a 255 hour treasury program conducted by the James Webb Space Telescope in its first cycle of observations…
Probing the Structure and Evolution of BASS AGN through Eddington Ratios
Tonima Tasnim Ananna, C. Megan Urry, Claudio Ricci +23
We constrain the intrinsic Eddington ratio (\lamEdd ) distribution function for local AGN in bins of low and high obscuration (log NH <= 22 and 22 < log NH < 25), using the Swift-B…
GALFIT-ing AGN Host Galaxies in COSMOS: HST vs. Subaru
Callum Dewsnap, Pauline Barmby, Sarah C. Gallagher +3
The COSMOS field has been extensively observed by most major telescopes, including Chandra, HST, and Subaru. HST imaging boasts very high spatial resolution and is used extensively…
BASS XXVI: DR2 Host Galaxy Stellar Velocity Dispersions
Michael J. Koss, Benny Trakhtenbrot, Claudio Ricci +18
We present new central stellar velocity dispersions for 484 Sy 1.9 and Sy 2 from the second data release of the Swift/BAT AGN Spectroscopic Survey (BASS DR2). This constitutes the…
BASS XXII: The BASS DR2 AGN Catalog and Data
Michael J. Koss, Claudio Ricci, Benny Trakhtenbrot +32
We present the AGN catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2). With this DR2 release we provide 1425 optical…
BAT AGN Spectroscopic Survey XXI: The Data Release 2 Overview
Michael J. Koss, Benny Trakhtenbrot, Claudio Ricci +24
The BAT AGN Spectroscopic Survey (BASS) is designed to provide a highly complete census of the key physical parameters of supermassive black holes (SMBHs) that power local active g…
BASS XXVIII: Near-infrared Data Release 2, High-Ionization and Broad Lines in Active Galactic Nuclei
Jakob den Brok, Michael J. Koss, Benny Trakhtenbrot +20
We present the BAT AGN Spectroscopic Survey (BASS) Near-infrared Data Release 2 (DR2), a study of 168 nearby ( = 0.04, < 0.6) active galactic nuclei (AGN) from the all-…
GaMPEN: A Machine Learning Framework for Estimating Bayesian Posteriors of Galaxy Morphological Parameters
Aritra Ghosh, C. Megan Urry, Amrit Rau +11
We introduce a novel machine learning framework for estimating the Bayesian posteriors of morphological parameters for arbitrarily large numbers of galaxies. The Galaxy Morphology…
Are Active Galactic Nuclei in Post-Starburst Galaxies Driving the Change or Along for the Ride?
Lauranne Lanz, Sofia Stepanoff, Ryan C. Hickox +10
We present an analysis of 10 ks snapshot Chandra observations of 12 shocked post-starburst galaxies, which provide a window into the unresolved question of active galactic nuclei (…
Accretion History of AGN: Estimating the Host Galaxy Properties in X-ray Luminous AGN from z=0-3
Brandon Coleman, Allison Kirkpatrick, Kevin C. Cooke +10
We aim to determine the intrinsic far-Infrared (far-IR) emission of X-ray-luminous quasars over cosmic time. Using a 16 deg^2 region of the Stripe 82 field surveyed by XMM-Newton a…
BASS XXIV: The BASS DR2 Spectroscopic Line Measurements and AGN Demographics
Kyuseok Oh, Michael J. Koss, Yoshihiro Ueda +17
We present the second catalog and data release of optical spectral line measurements and AGN demographics of the BAT AGN Spectroscopic Survey, which focuses on the of Swift-BAT har…
BAT AGN Spectroscopic Survey-XXIII. A New Mid-Infrared Diagnostic for Absorption in Active Galactic Nuclei
Ryan W. Pfeifle, Claudio Ricci, Peter G. Boorman +15
In this study, we use the SWIFT/BAT AGN sample, which has received extensive multiwavelength follow-up analysis as a result of the BAT AGN Spectroscopic Survey (BASS), to develop a…
BAT AGN Spectroscopic Survey-XX: Molecular Gas in Nearby Hard X-ray Selected AGN Galaxies
Michael J. Koss, Benjamin Strittmatter, Isabella Lamperti +23
We present the host galaxy molecular gas properties of a sample of 213 nearby (0.01<z< 0.05) hard X-ray selected AGN galaxies, drawn from the 70-month catalog of Swift-BAT, with 20…
Galaxy Morphology Network: A Convolutional Neural Network Used to Study Morphology and Quenching in SDSS and CANDELS Galaxies
Aritra Ghosh, C. Megan Urry, Zhengdong Wang +3
We examine morphology-separated color-mass diagrams to study the quenching of star formation in () Sloan Digital Sky Survey (SDSS) and ($z\sim1…
The Molecular Gas in the NGC 6240 Merging Galaxy System at the Highest Spatial Resolution
E. Treister, H. Messias, G. C. Privon +19
We present the highest resolution --- 15 pc (0.03'') --- ALMA CO(2-1) line emission and 1.3mm continuum maps, tracers of the molecular gas and dust, respectively, in the nea…
BAT AGN Spectroscopic Survey -- XIII. The nature of the most luminous obscured AGN in the low-redshift universe
Rudolf E. Bär, Benny Trakhtenbrot, Kyuseok Oh +18
We present a multi wavelength analysis of 28 of the most luminous low-redshift narrow-line, ultra-hard X-ray selected active galactic nuclei (AGN) drawn from the 70 month Swift/BAT…
The Accretion History of AGN: A Newly Defined Population of Cold Quasars
Allison Kirkpatrick, C. Megan Urry, Jason Brewster +15
Quasars are the most luminous of active galactic nuclei (AGN), and are perhaps responsible for quenching star formation in their hosts. The Stripe 82X catalog covers 31.3 deg o…