Results 61 to 70 of about 31,576 (269)

The dust masses of powerful radio galaxies: clues to the triggering of their activity [PDF]

, 2014
We use deep Herschel Space Observatory observations of a 90% complete sample of 32 intermediate-redshift 2Jy radio galaxies (0.05 < z < 0.7) to estimate the dust masses of their host galaxies and thereby investigate the triggering mechanisms for their ...
Almeida, C., Dicken, D., Könyves, V., Morganti, R., Nesvadba, N., Ramos Almeida, C., Tadhunter, C., Ysard, N.   +7 more
core   +4 more sources

$z\sim2$ dual AGN host galaxies are disky: stellar kinematics in the ASTRID Simulation

The Open Journal of Astrophysics
We study dual AGN host galaxy morphologies at $z=2$ using the ASTRID simulation, selecting black hole (BH) pairs with small separation ($\Delta r10^7M_\odot$), and luminosity ($L_{\text{bol,12}}>10^{43}\rm{erg/s}$).
Ekaterine Dadiani, Tiziana Di Matteo, Nianyi Chen, Patrick Lachance, Yu-Ching Chen, Yue Shen, Rupert Croft, Yueying Ni, Simeon Bird   +8 more
doaj   +1 more source

Structure and morphology of X-ray selected AGN hosts at 1 [PDF]

, 2014
We analyze morphologies of the host galaxies of 35 X-ray selected active galactic nucleus (AGNs) at $z\sim2$ in the Cosmic Evolution Survey (COSMOS) field using Hubble Space Telescope/WFC3 imaging taken from the Cosmic Assembly Near-infrared Deep ...
Chen, Yang, Fan, Lulu, Fang, Guanwen, Knudsen, Kirsten Kraiberg, Kong, Xu, Li, Jinrong, Lv, Xuanyi   +6 more
core   +2 more sources

The Stellar Morphology and Size of X-Ray-selected Active Galactic Nucleus Host Galaxies Revealed by JWST

The Astrophysical Journal
We investigate the stellar shape and size–mass relationship of X-ray-selected active galactic nucleus (AGN) host galaxies using the high angular resolution and deep sensitivity in the near-infrared of the COSMOS-Web JWST survey field. We present the rest-
Bovornpratch Vijarnwannaluk, Zhen-Kai Gao, Wei-Hao Wang, Chian-Chou Chen, Abdurrahman Naufal, Adarsh Ranjan, Bau-Ching Hsieh, Chayan Mondal, Chih-Yuan Chang, Hiddo S.B. Algera, Li-Wen Liao, Masayuki Akiyama, Seong Jin Kim, Shoichiro Mizukoshi, Tomotsugo Goto, Yu-Yen Chang, Caitlin Casey, Jeyhan S. Kartaltepe, Hollis B. Akins, Marko Shuntov, Maximilien Franco, Santosh Harish   +21 more
doaj   +1 more source

CEERS Key Paper. II. A First Look at the Resolved Host Properties of AGN at 3 < z < 5 with JWST

The Astrophysical Journal Letters, 2023
We report on the host properties of five X-ray-luminous active galactic nuclei (AGN) identified at 3 < z < 5 in the first epoch of imaging from the Cosmic Evolution Early Release Science Survey.
Dale D. Kocevski, Guillermo Barro, Elizabeth J. McGrath, Steven L. Finkelstein, Micaela B. Bagley, Henry C. Ferguson, Shardha Jogee, Guang Yang, Mark Dickinson, Nimish P. Hathi, Bren E. Backhaus, Eric F. Bell, Laura Bisigello, Véronique Buat, Denis Burgarella, Caitlin M. Casey, Nikko J. Cleri, M. C. Cooper, Luca Costantin, Darren Croton, Emanuele Daddi, Adriano Fontana, Seiji Fujimoto, Jonathan P. Gardner, Eric Gawiser, Mauro Giavalisco, Andrea Grazian, Norman A. Grogin, Yuchen Guo, Pablo Arrabal Haro, Michaela Hirschmann, Benne W. Holwerda, Marc Huertas-Company, Taylor A. Hutchison, Kartheik G. Iyer, Brenda Jones, Stéphanie Juneau, Jeyhan S. Kartaltepe, Lisa J. Kewley, Allison Kirkpatrick, Anton M. Koekemoer, Peter Kurczynski, Aurélien Le Bail, Arianna S. Long, Jennifer M. Lotz, Ray A. Lucas, Casey Papovich, Laura Pentericci, Pablo G. Pérez-González, Nor Pirzkal, Marc Rafelski, Swara Ravindranath, Rachel S. Somerville, Amber N. Straughn, Sandro Tacchella, Jonathan R. Trump, Stephen M. Wilkins, Stijn Wuyts, L. Y. Aaron Yung, Jorge A. Zavala   +59 more
doaj   +1 more source

The black holes of radio galaxies during the "Quasar Era": Masses, accretion rates, and evolutionary stage [PDF]

, 2010
We present an analysis of the AGN broad-line regions of 6 powerful radio galaxies at z>~2 (HzRGs) with rest-frame optical imaging spectroscopy obtained at the VLT. All galaxies have luminous (L(H-alpha)=few x 10^44 erg s^-1), spatially unresolved H-alpha
Best, Philip N., Binette, Luc, De Breuck, Carlos, Lehnert, Matt D., Nesvadba, Nicole P. H., Proga, Daniel   +5 more
core   +1 more source

The host galaxy/AGN connection in nearby early-type galaxies [PDF]

Astronomy & Astrophysics, 2005
Published in A& ...
Capetti, Alessandro, Balmaverde, Barbara
openaire   +2 more sources

Pair-Matching of Radio-Loud and Radio-Quiet AGNs

Frontiers in Astronomy and Space Sciences, 2017
Active galactic nuclei (AGNs) are known to cover an extremely broad range of radio luminosities and the spread of their radio-loudness is very large at any value of the Eddington ratio.
Dorota Kozieł-Wierzbowska, Grażyna Stasińska, Natalia Vale Asari, Marek Sikora, Elisa Goettems, Anna Wójtowicz   +5 more
doaj   +1 more source

Morphologies of Radio, X-Ray, and Mid-Infrared Selected AGN

, 2010
We investigate the optical morphologies of candidate active galaxies identified at radio, X-ray, and mid-infrared wavelengths. We use the Advanced Camera for Surveys General Catalog (ACS-GC) to identify 372, 1360, and 1238 AGN host galaxies from the VLA,
Alonso-Herrero, Ashby, Barth, Civano, Comerford, Comerford, Courbin, Daniel Stern, Donley, Donley, Eckart, Eckart, Eisenhardt, Faure, Fazio, Ferrarese, Gabor, Gebhardt, Gerke, Giavalisco, Hasinger, Hickox, Hopkins, Häussler, Koekemoer, Kollmeier, Komossa, Kormendy, Kormendy, Lacy, Magorrian, Marconi, Peng, Pentericci, Rieke, Roger L. Griffith, Sanders, Schechter, Schinnerer, Schneider, Scoville, Stern, Stern, Sérsic, Xu, York, Young   +46 more
core   +1 more source

Star Formation Characteristics of Galaxies Hosting AGN

Bulletin de la Société Royale des Sciences de Liège
We present an analysis of the ultra-violet (UV) observations of two Seyfert type active galactic nuclei (AGN), namely NGC 4051 and NGC 4151. These observations aimed at studying the star formation in the hosts of these AGN were carried out with the ultra-violet imaging telescope on board AstroSat in far-UV.
Nandi, Payel, Stalin, C. S.
openaire   +2 more sources