Results 141 to 150 of about 77,751 (271)

The host galaxy/AGN connection. Brightness profiles of early-type galaxies hosting Seyfert nuclei [PDF]

, 2007
A. Capetti, B. Balmaverde
openalex   +1 more source

Mapping the Active Galactic Nucleus Effects on the Stellar and Gas Properties of NGC 5806

The Astrophysical Journal
It is commonly accepted that active galactic nuclei (AGNs) have a strong impact upon the evolution of their host galaxies, but the processes by which they do so are not fully understood.
Sophie L. Robbins, Sandra I. Raimundo, Matthew A. Malkan   +2 more
doaj   +1 more source

A HIGH SPATIAL RESOLUTION MID-INFRARED SPECTROSCOPIC STUDY OF THE NUCLEI AND STAR-FORMING REGIONS IN LUMINOUS INFRARED GALAXIES [PDF]

, 2010
Tanio Díaz-Santos, Almudena Alonso-Herrero, Luis Colina, Christopher Packham, N. A. Levenson, Miguel Pereira-Santaella, Patrick F. Roche, Charles M. Telesco   +7 more
openalex   +1 more source

ONGOING AND CO-EVOLVING STAR FORMATION IN zCOSMOS GALAXIES HOSTING ACTIVE GALACTIC NUCLEI [PDF]

, 2009
J. D. Silverman, F. Lamareille, C. Maier, S. J. Lilly, V. Mainieri, M. Brusa, N. Cappelluti, G. Hasinger, G. Zamorani, M. Scodeggio, M. Bolzonella, T. Contini, C. M. Carollo, K. Jahnkę, Jean‐Paul Kneib, O. Le Fèvre, A. Merloni, S. Bardelli, A. Bongiorno, H. Brunner, K. I. Caputi, F. Civano, A. Comastri, G. Coppa, O. Cucciati, S. de la Torre, L. de Ravel, M. Elvis, A. Finoguenov, F. Fiore, P. Franzetti, B. Garilli, R. Gilli, A. Iovino, P. Kampczyk, C. Knobel, K. Kovač, J. F. Le Borgne, V. Le Brun, M. Mignoli, R. Pelló, Y. Peng, E. Pérez‐Montero, E. Ricciardelli, M. Tanaka, L. Tasca, L. Tresse, D. Vergani, C. Vignali, E. Zucca, D. Bottini, A. Cappi, P. Cassata, M. Fumana, R. E. Griffiths, Jeyhan S. Kartaltepe, Anton M. Koekemoer, C. Marinoni, H. J. McCracken, P. Memeo, B. Meneux, Pascal A. Oesch, C. Porciani, M. Salvato   +63 more
openalex   +1 more source

A High Incidence of Central Star Formation Inferred from the Color Gradients of Galaxies at z > 4

The Astrophysical Journal
We study the rest-frame ultraviolet-optical color gradients of 441 galaxies at 4 
Bingcheng Jin, Luis C. Ho, Wen Sun
doaj   +1 more source

Bursty stellar populations and obscured active galactic nuclei in galaxy bulges [PDF]

, 2007
Vivienne Wild, Guinevere Kauffmann, Timothy M. Heckman, S. Charlot, Gerard Lemson, J. Brinchmann, Timothy A. Reichard, A. Pasquali   +7 more
openalex   +1 more source

AGN STORM 2. V. Anomalous Behavior of the C iv Light Curve of Mrk 817

The Astrophysical Journal
An intensive reverberation mapping campaign of the Seyfert 1 galaxy Mrk 817 using the Cosmic Origins Spectrograph on the Hubble Space Telescope revealed significant variations in the response of broad UV emission lines to fluctuations in the continuum ...
Y. Homayouni, Gerard A. Kriss, Gisella De Rosa, Rachel Plesha, Edward M. Cackett, Michael R. Goad, Kirk T. Korista, Keith Horne, Travis Fischer, Tim Waters, Aaron J. Barth, Erin A. Kara, Hermine Landt, Nahum Arav, Benjamin D. Boizelle, Misty C. Bentz, Michael S. Brotherton, Doron Chelouche, Elena Dalla Bontà, Maryam Dehghanian, Pu Du, Gary J. Ferland, Carina Fian, Jonathan Gelbord, Catherine J. Grier, Patrick B. Hall, Chen Hu, Dragana Ilić, Michael D. Joner, Jelle Kaastra, Shai Kaspi, Andjelka B. Kovačević, Daniel Kynoch, Yan-Rong Li, Missagh Mehdipour, Jake A. Miller, Jake Mitchell, John Montano, Hagai Netzer, J. M. M. Neustadt, Ethan Partington, Luka Č. Popović, Daniel Proga, Thaisa Storchi-Bergmann, David Sanmartim, Matthew R. Siebert, Tommaso Treu, Marianne Vestergaard, Jian-Min Wang, Martin J. Ward, Fatima Zaidouni, Ying Zu   +51 more
doaj   +1 more source

The Central Regions of Early-Type Galaxies Hosting Active Galactic Nuclei as Viewed with HST/NICMOS [PDF]

, 2001
Swara Ravindranath, Luis C. Ho, Chien Y. Peng, A. V. Filippenko, W. L. W. Sargent   +4 more
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An Accreting Supermassive Black Hole Buried in a Faint Dwarf Galaxy

The Astrophysical Journal Letters
In the last decade, there have been several discoveries of active galactic nuclei (AGN) in dwarf galaxies including an AGN in an ultracompact dwarf galaxy with a black hole mass >10 ^6 M _⊙ .
Abhishek Paswan, Mousumi Das, K Rubinur
doaj   +1 more source

Episodic Feedback in Triple Active Galactic Nucleus Candidate SDSS J0849+1114 Revealed by Extended Ionized Gas

The Astrophysical Journal
Galaxy mergers funnel gas toward the nuclei, igniting starbursts and active galactic nuclei (AGNs). The AGN feedback can reshape the host galaxy and regulate both star formation and supermassive black hole accretion.
Xiaoyu Xu, Meicun Hou, Zhiyuan Li, Sijia Peng, Zhao Su, Zongnan Li, Fuyan Bian, Junfeng Wang   +7 more
doaj   +1 more source