Results 31 to 40 of about 31,838 (235)

The bulge-disc decomposition of AGN host galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
We present the results from a study of the morphologies of moderate luminosity X-ray selected AGN host galaxies in comparison to a carefully mass-matched control sample at 0.5 < z < 3 in the CANDELS GOODS-S field. We apply a multi-wavelength morphological decomposition analysis to these two samples and report on the differences between the ...
V. A. Bruce, J. S. Dunlop, A. Mortlock, D. D. Kocevski, E. J. McGrath, D. J. Rosario   +5 more
openaire   +4 more sources

AGN in dusty hosts: implications for galaxy evolution [PDF]

Monthly Notices of the Royal Astronomical Society, 2013
We present strong empirical evidence for a physical connection between the occurrence of a starburst (SB) and a luminous AGN phase. Drawing infrared (IR), X-ray, and optically selected samples from COSMOS, we find that the locus of type-2 AGN hosts in the optical colour-magnitude (U-V/V) and colour-colour (U-V/V-J) space significantly overlaps with ...
Symeonidis, M., Kartaltepe, J., Salvato, M., Bongiorno, A., Brusa, M., Page, M. J., Ilbert, O., Sanders, D., Wel, A.   +8 more
openaire   +6 more sources

Host galaxies of AGN

, 2001
The relationship of an AGN to its host galaxy is a crucial question in the study of galaxy evolution. We perform stellar population synthesis in the central regions of galaxies of different activity levels. A large number of stellar features are measured both in the optical and near-infrared.
Boisson, C., Joly, M.
openaire   +3 more sources

AGN host galaxy mass function in COSMOS [PDF]

Astronomy & Astrophysics, 2016
15 pages, 10 figures, accepted for publication in A& ...
Bongiorno, A, Schulze, A., Merloni, A., Zamorani, G., Ilbert, O., La Franca, F., Peng, Y., Piconcelli, E., Mainieri, V., Silverman, J. D., BRUSA, MARCELLA, Fiore, F., Salvato, M., Scoville, N.   +13 more
openaire   +5 more sources

The impact of cosmic voids on AGN activity

Astronomy & Astrophysics
Aims. Our goal is to carry out a comparative study of the properties of central galaxies hosting active galactic nuclei (AGN) in cosmic voids and their surrounding structures (i.e.
Rouse Benedict L., Tissera Patricia B., Rosas-Guevara Yetli, Lagos Claudia del P.   +3 more
doaj   +1 more source

Do Bars Trigger Activity in Galactic Nuclei?

, 2012
We investigate the connection between the presence of bars and AGN activity, using a volume-limited sample of $\sim$9,000 late-type galaxies with axis ratio $b/a>0.6$ and $M_{r} < -19.5+5{\rm log}h$ at low redshift ($0.02\le z\lesssim 0.055$), selected ...
Hwang, Ho Seong, Lee, Gwang-Ho, Lee, Jong Chul, Lee, Jong Hwan, Lee, Myung Gyoon, Sohn, Jubee, Woo, Jong-Hak   +6 more
core   +1 more source

Host galaxy colour gradients and accretion disc obscuration in AEGIS z~1 X-ray-selected active galactic nuclei

, 2010
We describe the effect of AGN light on host galaxy optical and UV-optical colours, as determined from X-ray-selected AGN host galaxies at z~1, and compare the AGN host galaxy colours to those of a control sample matched to the AGN sample in both redshift
A. L. Coil, Aird, Baldry, Baldwin, Barger, Barger, Barmby, Bell, Bell, Bell, Bower, Bruzual, Bundy, Bundy, C. M. Pierce, C. N. A. Willmer, Cattaneo, Ciliegi, Ciotti, Coil, Condon, Conselice, Croton, D. J. V. Rosario, Davis, Davis, Dekel, Donley, Drake, E. S. Laird, Faber, Fang, Fasano, Gehrels, Georgakakis, Georgakakis, Georgakakis, Georgakakis, Georgakakis, Gerke, Granato, Grogin, Grogin, Hatziminaoglou, Hopkins, Hopkins, Hopkins, Hopkins, Hopkins, Huang, Ivison, J. M. Lotz, J. R. Primack, Jeltema, K. Bundy, Kassin, Kauffmann, Kauffmann, Kennicutt, Kinney, Konidaris, Koo, Lacy, Laird, Laird, Le Floc'h, Lin, Martin, Martin, Moustakas, Nandra, Nandra, Nandra, Noeske, Noeske, Park, Peterson, Pierce, Pierce, Rigby, Rovilos, S. M. Faber, S. Salim, Salim, Salim, Salim, Sato, Scannapieco, Schawinski, Schiminovich, Silk, Silverman, Silverman, Stern, Symeonidis, Sánchez, Teng, Weiner, Weiner, Willmer, Wilson, Wyder, Yan   +102 more
core   +1 more source

Low-luminosity AGN and Normal Galaxies [PDF]

, 2000
Low-luminosity AGN (with X-ray luminosity < 1e42 ergs/s) far outnumber ordinary AGN, and are therefore perhaps more relevant to our understanding of AGN phenomena and the relationship between AGN and host galaxies.
Ptak, A.
core   +3 more sources

Atomic Hydrogen Properties of AGN Host Galaxies: HI in 16 NUclei of GAlaxies (NUGA) Sources

, 2007
We present a comprehensive spectroscopic imaging survey of the distribution and kinematics of atomic hydrogen (HI) in 16 nearby spiral galaxies hosting low luminosity AGN, observed with high spectral and spatial resolution (resolution: ~20 arcsec, 5 km/s)
Begeman K. G., Boone F., Buta R. & Combes F., Carole G. Mundell, Combes F., Combes F., Efron Bradley, Eva Schinnerer, Francoise Combes, Friedli D. & Martinet L., García-Burillo S., García-Burillo S., Greisen E. W., Jogee S., Junqueira S. & Combes F., Laurikainen E. & Salo H., Mundell C. G., Mundell C. G., Netzer H. & Shields J. C., Santiago García-Burillo, Schwarz U. J., Sebastian Haan, Shostak G. S., van der Hulst J. M., Verley S., Vollmer B., Warner P. J.   +26 more
core   +3 more sources

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