Results 111 to 120 of about 189,366 (258)

$z\sim2$ 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

Active Dwarf Galaxy Database. I. Overlap between Active Galactic Nuclei Selected by Different Techniques

The Astrophysical Journal
We assemble a sample of 733 dwarf galaxies ( M _* ≤ 10 ^9.5 M _⊙ ) with signatures of active galactic nuclei (AGN) and explore the intersection between different AGN-selection techniques.
Erik J. Wasleske, Vivienne F. Baldassare
doaj   +1 more source

A complete catalogue of merger fractions in AGN hosts: No evidence for an increase in detected merger fraction with AGN luminosity

The Open Journal of Astrophysics, 2023
Despite the importance of Active Galactic Nuclei (AGN) in galaxy evolution, the mechanisms that fuel AGN activity remain poorly understood. Theoretical models suggest that major mergers of galaxies contribute strongly to AGN fuelling, particularly at ...
Carolin Villforth
doaj   +1 more source

An Extended Lyα Outflow from a Radio Galaxy at z = 3.7?

The Astrophysical Journal Letters, 2023
Spatially resolved observations of active galactic nuclei (AGN) host galaxies undergoing feedback processes are one of the most relevant avenues through which galactic evolution can be studied, given the long-lasting effects AGN feedback has on gas ...
Miguel Coloma Puga, Barbara Balmaverde, Alessandro Capetti, Francesco Massaro, Cristina Ramos Almeida, George Miley, Roberto Gilli, Alessandro Marconi   +7 more
doaj   +1 more source

The host galaxy properties of variability selected AGN in the Pan-STARRS1 Medium-Deep Survey [PDF]

, 2016
We study the properties of 975 active galactic nuclei (AGN) selected by variability in the Pan-STARRS1 Medium-Deep Survey. Using complementary multi wavelength data from the ultraviolet to the far-infrared, we use SED fitting to determine the AGN and host properties at $z<1$, and compare to a well-matched control sample. We confirm the trend previously
arxiv   +1 more source

The Relation between AGN and Host-galaxy Properties in the JWST Era. I. Seyferts at Cosmic Noon are Obscured and Disturbed

The Astrophysical Journal
The morphology of a galaxy reflects the mix of physical processes occurring within and around it, offering indirect clues to its formation and evolution.
Nina Bonaventura, Jianwei Lyu, George H. Rieke, Stacey Alberts, Christopher N. A. Willmer, Pablo G. Pérez-González, Andrew J. Bunker, Meredith Stone, Francesco D’Eugenio, Christina C. Williams, Michael V. Maseda, Chris J. Willott, Zhiyuan Ji, William M. Baker, Stefano Carniani, Stephane Charlot, Jacopo Chevallard, Emma Curtis-Lake, Daniel J. Eisenstein, Kevin Hainline, Ryan Hausen, Erica J. Nelson, Marcia J. Rieke, Brant Robertson, Irene Shivaei   +24 more
doaj   +1 more source

AMUSE-Antlia. I. Nuclear X-Ray Properties of Early-type Galaxies in a Dynamically Young Galaxy Cluster

The Astrophysical Journal, 2023
To understand the formation and growth of supermassive black holes (SMBHs) and their coevolution with host galaxies, it is essential to know the impact of environment on the activity of active galactic nuclei (AGNs).
Zhensong Hu, Yuanyuan Su, Zhiyuan Li, Kelley M. Hess, Ralph P. Kraft, William R. Forman, Paul E. J. Nulsen, Sarrvesh S. Sridhar, Andra Stroe, Junhyun Baek, Aeree Chung, Dirk Grupe, Hao Chen, Jimmy A. Irwin, Christine Jones, Scott W. Randall, Elke Roediger   +16 more
doaj   +1 more source

Tracing the evolution of Active Galactic Nuclei host galaxies over the last 9 Gyrs of Cosmic time [PDF]

, 2013
We present the results of a combined galaxy population analysis for the host galaxies of active galactic nuclei (AGN) identified at 0 < z < 1.4 within the SDSS, Bootes and DEEP2 surveys. We identified AGN in a uniform and unbiased manner at X-ray, infrared and radio wavelengths.
arxiv   +1 more source

The Origin of Line Emission in Massive z~2.3 Galaxies: Evidence for Cosmic Downsizing of AGN Host Galaxies

, 2007
Using the Gemini Near-InfraRed Spectrograph (GNIRS), we have assembled a complete sample of 20 K-selected galaxies at 2 ...
Bonnet H., Bower R. G., C. Megan Urry, Cattaneo A., Danilo Marchesini, Edward N. Taylor, Elias J. H., Eric Gawiser, Garth D. Illingworth, Gregory Rudnick, Ivo Labbe, Marijn Franx, Mariska Kriek, Natascha M. Forster Schreiber, Paolo Coppi, Paul P. van der Werf, Paulina Lira, Pieter G. van Dokkum, Ryan Quadri   +18 more
core   +1 more source

Black hole variability and the star formation-active galactic nucleus connection : do all star-forming galaxies host an active galactic nucleus? [PDF]

, 2014
We investigate the effect of active galactic nucleus (AGN) variability on the observed connection between star formation and black hole accretion in extragalactic surveys.
Alexander, D.M., Chen, C.-T.J., Civano, F.M., Goulding, A.D., Hainline, K.N., Hickox, R.C., Mullaney, J.R.   +6 more
core   +2 more sources