Results 51 to 60 of about 31,576 (269)

The Host Galaxies of AGN

, 2003
submitted to MNRAS, 44 pages, version with full resolution figures available at http://www.mpa-garching.mpg.de/~gamk/agnpaper/agnpaper ...
Kauffmann, Guinevere, Heckman, Timothy M., Tremonti, Christy, Brinchmann, Jarle, Charlot, Stephane, White, Simon D. M., Ridgway, Susan, Brinkmann, Jon, Fukugita, Masataka, Hall, Patrick, Ivezic, Zeljko, Richards, Gordon, Schneider, Donald   +12 more
openaire   +2 more sources

Host galaxy properties of radio selected AGN [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractWith the goal of investigating the link between black hole (BH) and star formation (SF) activity, we study a deep sample of radio selected star forming galaxies (SFGs) and active galactic nuclei (AGNs). Using a multi-wavelength approach we characterize their host galaxies properties (stellar masses, optical colors, and morphology).
M. Bonzini, V. Mainieri, P. Padovani, K. I. Kellermann, N. Miller, P. Rosati, P. Tozzi, S. Vattakunnel   +7 more
openaire   +1 more source

Active Galactic Nuclei in the Green Valley at z ∼ 0.7

The Astrophysical Journal
We present near-infrared (NIR) spectroscopy using the MMT and Magellan infrared spectrograph for a sample of 29 massive galaxies ( $\mathrm{log}\ {M}_{* }/{M}_{\odot }\gtrsim 10$ ) at z ∼ 0.7 with optical spectroscopy from the Large Early Galaxy ...
Charity Woodrum, Christina C. Williams, Marcia Rieke, Kevin N. Hainline, Raphael E. Hviding, Zhiyuan Ji, Robert Kennicutt, Christopher N. A. Willmer   +7 more
doaj   +1 more source

PRIMUS: The relationship between Star formation and AGN accretion

, 2015
We study the evidence for a connection between active galactic nuclei (AGN) fueling and star formation by investigating the relationship between the X-ray luminosities of AGN and the star formation rates (SFRs) of their host galaxies.
Aird, James, Azadi, Mojegan, Blanton, Michael, Coil, Alison, Cool, Richard, Eisenstein, Daniel, Mendez, Alexander, Moustakas, John, Wong, Kenneth, Zhu, Guangtun   +9 more
core   +2 more sources

Probing extreme black‐hole outflows on short timescales via high spectral‐resolution x‐ray imagers

Astronomische Nachrichten, Volume 345, Issue 6-7, July-August 2024.
Abstract We investigate outflows and the physics of super‐Eddington versus sub‐Eddington regimes in black hole systems. Our focus is on prospective science using next‐generation high‐resolution soft x‐ray instruments. We highlight the properties of black hole ultraluminous x‐ray source (ULX) systems in particular. Owing to scale invariance in accreting
C. Pinto, J. F. Steiner, A. Bodaghee, P. Chakraborty, M. Sobolewska, D. R. Pasham, A. Ogorzalek, J. Zuhone, A. Bogdan, M. Vogelsberger   +9 more
wiley   +1 more source

Different Dependence of Narrow Hα Line Luminosity on Optical Continuum Luminosity between Star-forming Galaxies and Type 2 Active Galactic Nuclei: Globally Negative AGN Feedback in Local Type 2 AGN?

The Astrophysical Journal
In this manuscript, clues are provided to support globally negative active galactic nuclei (AGN) feedback on star formation in the host galaxies of the local low-redshift Sloan Digital Sky Survey (SDSS) Type 2 AGN, based on the different dependence of ...
XueGuang Zhang
doaj   +1 more source

HST WFC3/IR Observations of Active Galactic Nucleus Host Galaxies at z~2: Supermassive Black Holes Grow in Disk Galaxies

, 2010
We present the rest-frame optical morphologies of active galactic nucleus (AGN) host galaxies at 1 ...
Bond, Cardamone, Cardamone, Constantin, Ferrarese, Francke, Gebhardt, Hinshaw, Hopkins, Hopkins, Häring, Jahnke, Koekemoer, Koekemoer, Koss, Kriek, Luo, Merloni, Peng, Peng, Schawinski, Schawinski, Schawinski, Sersic, Simmons, Treister, Treister, Trump, Ueda, Windhorst   +29 more
core   +1 more source

Chemical Evolution of the Universe and its Consequences for Gravitational‐Wave Astrophysics

Annalen der Physik, Volume 536, Issue 2, February 2024.
Population properties of double compact object mergers (especially binary black holes) are sensitive to the metallicity dependent cosmic star formation history. The uncertainty of this quantity cannot be ignored and makes the interpretation of current gravitational wave observations difficult.
Martyna Chruślińska
wiley   +1 more source

Galaxies Lighting Up: Discovery of Seventy New Turn-on Changing-look Active Galactic Nuclei

The Astrophysical Journal
“Changing-look active galactic nuclei” (CL AGN) show dramatic, rapid changes in optical/UV continuum and broad-line emission. The majority of CL AGN have been found dimming as “turn-off” CL AGN because most selection methods start from samples of ...
Qian Yang, Paul J. Green, Xue-Bing Wu, Michael Eracleous, Linhua Jiang, Yuming Fu   +5 more
doaj   +1 more source

The Accuracy of Morphological Decomposition of Active Galactic Nucleus Host Galaxies

, 2008
In order to assess the accuracy with which we can determine the morphologies of AGN host galaxies, we have simulated more than 50,000 ACS images of galaxies with z < 1.25, using image and noise properties appropriate for the GOODS survey.
B. D. Simmons, C. M. Urry, Ferrarese L., Kormendy J.   +3 more
core   +1 more source