Results 121 to 130 of about 31,576 (269)

Massive galaxies with very young AGN

, 2007
Gigahertz Peaked Spectrum (GPS) radio galaxies are generally thought to be the young counterparts of classical extended radio sources and live in massive ellipticals.
de Vries, I. A. G. Snellen, M. D. Lehnert, M. N. Bremer, Nathan de Vries, R. T. Schilizzi   +5 more
core   +2 more sources

Environments of high and low excitation radio galaxies

Astronomy & Astrophysics
Aims. Active galactic nuclei (AGNs) play a crucial role in shaping galaxy evolution through their feedback mechanisms. Low-excitation radio galaxies (LERGs) and high-excitation radio galaxies (HERGs) are thought to exhibit distinct feedback modes, and ...
Lopez C., Ponce D., Donoso E.
doaj   +1 more source

Bayesian AGN Decomposition Analysis for SDSS spectra: a correlation analysis of [O iii] λ5007 outflow kinematics with AGN and host galaxy properties [PDF]

, 2020
Remington O. Sexton, William Matzko, Nicholas Darden, Gabriela Canalizo, Varoujan Gorjian   +4 more
openalex   +1 more source

The Role of Active Galactic Nucleus Winds in Galaxy Formation: Connecting AGN Outflows at Low Redshifts to the Formation/Evolution of Their Host Galaxies

The Astronomical Journal
Using Sloan Digital Sky Survey (SDSS) spectra, we applied an automatic method to search for outflows (OFs) in three large samples of narrow-line active galactic nuclei (AGN) at low redshifts ( z < 0.4), separated into three spectral activity classes ...
Juan Pablo Torres-Papaqui, Roger Coziol, Aitor C. Robleto-Orús, Karla A. Cutiva-Alvarez, Paulina Roco-Avilez   +4 more
doaj   +1 more source

The Effects of an AGN on Host Galaxy Colour and Morphology Measurements

, 2010
We assess the effects of simulated active galactic nuclei (AGNs) on the colour and morphology measurements of their host galaxies. To test the morphology measurements, we select a sample of galaxies not known to host AGNs and add a series of point ...
A. L. Coil, A. M. Koekemoer, Abraham, Barden, Bell, Bennert, Bertin, Blanton, C. J. Conselice, C. M. Pierce, Ciotti, Coil, Conselice, Conselice, Conselice, Croton, D. C. Koo, D. J. V. Rosario, Davis, de Bruyn, E. S. Laird, Francis, Gabor, Georgakakis, Gini, Griffith, Grogin, Grogin, Hopkins, Hopkins, Hopkins, Hopkins, Häussler, Ivison, J. M. Lotz, J. R. Primack, Kauffmann, Kauffmann, Kennicutt, Kennicutt, Kim, Kinney, Laird, Lotz, Lotz, Lotz, Nandra, Peng, Petrosian, Pierce, Pierce, R. J. Ivison, R. L. Griffith, R. Yan, S. M. Faber, S. Salim, Schawinski, Silverman, Simmons, Somerville, Sánchez, Trujillo, Urrutia, Weiner, Willmer, Wyder   +65 more
core   +1 more source

Why Are AGN and Host Galaxies Misaligned?

, 2011
8 pages, 4 figures, accepted to MNRAS (moderate revisions to match accepted version)
Hopkins, P. F., Hernquist, L., Hayward, C. C., Narayanan, Desika   +3 more
openaire   +2 more sources

Are the hosts of VLBI selected radio-AGN different to those of radio-loud AGN?

, 2016
Recent studies have found that radio-AGN selected by radio-loudness show little difference in terms of their host galaxy properties when compared to non-AGN galaxies of similar stellar mass and redshift.
Herrera-Ruiz, N., Middelberg, E., Norris, R. P., Rees, G. A., Spitler, L. R.   +4 more
core   +1 more source

Host galaxies of binary AGN [PDF]

Proceedings of Nuclei of Seyfert galaxies and QSOs - Central engine & conditions of star formation — PoS(Seyfert 2012), 2013
Carolin Villforth, Fred Hamann
openaire   +1 more source

ALMA/SCUBA-2 COSMOS Survey: Properties of X-Ray- and SED-selected Active Galactic Nuclei in Bright Submillimeter Galaxies

The Astrophysical Journal
We investigate the properties of active galactic nuclei (AGNs) in the brightest submillimeter galaxies (SMGs) in the COSMOS field. We utilize the bright sample of the ALMA/SCUBA-2 COSMOS Survey (AS2COSMOS), which consists of 260 SMGs with S _870 _μ _m  = 
Ryosuke Uematsu, Yoshihiro Ueda, David M. Alexander, A. M. Swinbank, Ian Smail, Carolina Andonie, Chian-Chou Chen, Ugne Dudzevičiūtė, Soh Ikarashi, Kotaro Kohno, Yuichi Matsuda, Annagrazia Puglisi, Hideki Umehata, Wei-Hao Wang   +13 more
doaj   +1 more source

Morphologies of low-redshift AGN host galaxies: what role does AGN luminosity play?

, 2013
Mergers of galaxies have been suspected to be a major trigger of AGN activity for many years. However, when compared to carefully matched control samples, AGN host galaxies often show no enhanced signs of interaction.
Chang, YuYen, collaboration, CANDELS, Guo, Yicheng, Hamann, Fred, Hamilton, Timothy, Koekemoer, Anton, McGrath, Elizabeth J., Rosario, David, van der Wel, Arjen, Villforth, Carolin   +9 more
core