Results 111 to 120 of about 1,281,453 (204)

Colors of AGN host galaxies at 0.5

, 2016
We present the results from a study of the host galaxies of 15 optically selected AGNs with 0 ...
Sanchez, S, Jahnke, K, Wisotzki, L, McIntosh, D, Bell, E, Barden, M, Beckwith, S, Borch, A, Caldwell, J, Haeussler, B, Jogee, S, Meisenheimer, K, Peng, C, Rix, H, Somerville, R, Wolf, C, collaboration, FTGEMS   +16 more
openaire   +1 more source

Low-mass Active Galaxies in the SAMI Galaxy Survey with Spatially Resolved Spectroscopy

The Astrophysical Journal
The smallest supermassive black holes (BHs), which provide constraints on BH seeds, reside in low-mass galaxies. Here, we present a systematic analysis of 990 low-mass galaxies in the SAMI Galaxy Survey to identify emission from accreting BHs using ...
Stellan Bechtold, Amy Reines
doaj   +1 more source

The incidence of X-ray AGN and non-AGN galaxies in the far-infrared: Insights into host galaxy properties and AGN obscuration

Astronomy & Astrophysics
We investigate the far-infrared (far-IR) incidence of X-ray-selected active galactic nuclei (AGNs) and galaxies that do not host an AGN (non-AGNs) as a function of the stellar mass (M*), star formation rate (SFR), and specific black hole accretion rate (λsBHAR), using data from five well-characterized extragalactic fields (COSMOS, XMM-LSS, Stripe82 ...
Mountrichas, Georgios, Carrera Troyano, Francisco Jesús, Georgantopoulos, I., Mateos Ibáñez, Silvia, Ruiz Camuñas, Ángel, Corral Ramos, Amalia   +5 more
openaire   +4 more sources

Modeling Star Formation Histories of Changing-look AGN Host Galaxies with Prospector

The Astrophysical Journal
Changing-look active galactic nuclei (CL-AGNs), are AGNs that appear to transition between Seyfert Type 1 and 2 over periods of months to years. Several mechanisms to trigger these transitions have been proposed, but we have yet to conclusively determine
Margaret E. Verrico, K. Decker French, Katherine A. Suess, Tanay Agrawal, Lauranne Lanz, Yuanze Luo, Pallavi Patil, Kate Rowlands, Margaret Shepherd, Maya Skarbinski   +9 more
doaj   +1 more source

227th AAS Meeting

, 2016
We present IFS observations of luminous (log(L[O III]/L⊙) > 8.7) local (z 95 %) correlation between the [N II]/Hα ratio and the velocity dispersion of the gas.
McElroy, Rebecca, Pracy, Michael, Croom, Scott   +2 more
core   +1 more source

The Perpendicularity of Dust Lanes and Radio Jets in Early-type Galaxies: Implications for Active Galactic Nuclei Feedback

The Astrophysical Journal
The orientation of radio jets relative to their host galaxies offers an interesting avenue for probing the connection between active galactic nuclei (AGN) and their surroundings.
Emma Jane Weller, Pieter van Dokkum
doaj   +1 more source

Optical surveys of AGN and their host galaxies

, 2013
This thesis rests on two large Active Galactic Nuclei (AGNs) surveys. The first survey deals with galaxies that host low-level AGNs (LLAGN) and aims at identifying such galaxies by quantifying their variability. While numerous studies have shown that AGNs can be variable at all wavelengths, the nature of the variability is still not well understood ...
openaire   +2 more sources

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

AGN host galaxies at z ~ 0.4-1.3 : bulge-dominated and lacking merger-AGN connection

, 2005
We investigate morphological structure parameters and local environments of distant moderate-luminosity active galactic nucleus (AGN) host galaxies in the overlap between the HST/ACS observations of the Great Observatories Origins Deep Survey (GOODS) and
Urry, C. M., Laidler, V. G., Hornschemeier, A. E., Alexander, D. M., Bauer, F. E., Schreier, E. J., Paolillo, M., Lucas, R. A., Grogin, N. A., Conselice, C. J., Jogee, S., Koekemoer, A. M., Simmons, B. D., Chatzichristou, E., Livio, M., Ravindranath, S.   +15 more
core   +2 more sources

A gas-enshrouded and gas-reddened black hole at cosmic dawn. [PDF]

Nature
Naidu RP, Matthee J, Katz H, de Graaff A, Oesch PA, Smith A, Greene JE, Brammer G, Weibel A, Hviding R, Chisholm J, Labbé I, Simcoe RA, Witten C, Sun WQ, Atek H, Baggen JFW, Belli S, Bezanson R, Boogaard LA, Bose S, Bouwens RJ, Covelo-Paz A, Dayal P, Fudamoto Y, Furtak LJ, Giovinazzo E, Goulding A, Gronke M, Heintz KE, Hirschmann M, Illingworth G, Inoue AK, Johnson BD, Leja J, Leonova E, McConachie I, Maseda MV, Natarajan P, Nelson E, Setton DJ, Shivaei I, Sobral D, Stefanon M, Tacchella S, Toft S, Torralba A, van Dokkum P, van der Wel A, Volonteri M, Walter F, Wang B, Watson D, Whitaker K.   +53 more
europepmc   +1 more source