activity
20102026
most citedThe Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617

1.9k citations · 9k across the 138 of their papers we have counts for

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Showing 2025 · astro-ph.GAShow all

12 papers · 2 filters

astro-ph.GA2025

BASS LIV. Physical Properties of AGN-Hosting Galaxy Mergers from Multiwavelength SED Fitting

Marco Troncoso, Ezequiel Treister, Alejandra Rojas +17

Galaxy mergers are believed to play an important role in triggering rapid supermassive black hole (SMBH) growth. As merging nuclei approach each other, the physical properties of t…

astro-ph.GA2025

BASS LII: The prevalence of double-peaked broad lines at low accretion rates among hard X-ray selected AGN

Charlotte Ward, Michael J. Koss, Michael Eracleous +18

A fraction of active galactic nuclei (AGN) have double-peaked H, H and Mg II broad lines attributed to emission from rotating gas in the accretion disk. Using optical spectro…

astro-ph.GA2025

BASS LIII: The Eddington Ratio as the Primary Regulator of the Fraction of X-ray Emission in Active Galactic Nuclei

Kriti Kamal Gupta, Claudio Ricci, Alessia Tortosa +20

Active galactic nuclei (AGN) emit radiation via accretion across the entire energy spectrum. While the standard disk and corona model can somewhat describe this emission, it fails…

astro-ph.GA2025★ 8 cited

BASS. XLIX. Characterization of highly luminous and obscured AGNs: local X-ray and [NeV]3426 emission in comparison with the high-redshift Universe

Alessandro Peca, Michael J. Koss, Kyuseok Oh +21

We present a detailed analysis of the most luminous and obscured Active Galactic Nuclei (AGNs) detected in the ultra-hard X-ray band (14-195 keV) by Swift/BAT. Our sample comprises…

astro-ph.GA2025

BASS XLVIII: [Ne v] λ3427 Emission in Powerful Nearby Active Galactic Nuclei

Tomer Reiss, Benny Trakhtenbrot, Claudio Ricci +14

We investigate the high-ionization, narrow [Ne v] 3427 emission line in a sample of over 340 ultrahard X-ray (14-195 keV) selected Active Galactic Nuclei (AGN) drawn from the BA…

astro-ph.GA2025

Insights for Early Massive Black Hole Growth from JWST Detection of the [Ne v] λ3427 Emission Line

Benny Trakhtenbrot, Claudio Ricci, Ezequiel Treister +7

We use the narrow [Ne v] 3427 emission line detected in the recently published JWST spectra of two galaxies, at z = 6.9 and 5.6, to study the key properties of the active galact…

astro-ph.GA2025★ 1 cited

BASS. XLIV. Morphological preferences of local hard X-ray selected AGN

Miguel Parra Tello, Franz E. Bauer, Demetra De Cicco +20

We present morphological classifications for the hosts of 1189 hard X-ray selected (14-195 keV) active galactic nuclei (AGNs) from the Swift-BAT 105-month catalog as part of the BA…

astro-ph.GA2025

The Compton-thick AGN Population and the Distribution of Low-mass AGN in our Cosmic Backyard

A. Annuar, D. M. Alexander, P. Gandhi +21

We present a census of the Compton-thick (CT) active galactic nucleus (AGN) population and the column density () distribution of AGN in our cosmic backyard using a mid-…

astro-ph.GA2025★ 5 cited

ALMA observation of evolving magnetized corona in the radio-quiet changing-state AGN NGC 1566

Arghajit Jana, Claudio Ricci, Sophie M. Venselaar +9

The origin of compact millimeter (mm) continuum emission from radio-quiet AGNs (RQAGNs) is still not fully understood. Changing-state AGNs (CSAGNs) display rapid and strong variabi…

astro-ph.GA2025★ 9 cited

BASS XLVII: 22 GHz Radio Atlas of Swift-BAT Selected AGN

Macon Magno, Krista L. Smith, O. Ivy Wong +16

We present the third phase of the largest high-frequency, high-resolution imaging survey of 231 nearby, hard X-ray selected AGN, with a very high detection fraction. T…

astro-ph.GA2025

Estimating Black Hole Masses in Obscured AGN from X-ray and Optical Emission Line Luminosities

S. LaMassa, I. Farrow, C. M. Urry +6

We test a novel method for estimating black hole masses () in obscured active galactic nuclei (AGN) that uses proxies to measure the full-width half maximum of broad H$…

astro-ph.GA2025★ 2 cited

BASS XLV: Quantifying AGN Selection Effects in the Chandra COSMOS-Legacy Survey with BASS

Yarone M. Tokayer, Michael J. Koss, C. Megan Urry +11

Deep extragalactic X-ray surveys, such as the Chandra COSMOS-Legacy field (CCLS), are prone to be biased against active galactic nuclei (AGN) with high column densities due to thei…