Results 41 to 50 of about 101,045 (324)

Black hole masses in active galaxies [PDF]

, 2004
This contribution reviews two topics of current interest in the study of black hole demographics in active galaxies: Can the stellar velocity dispersions of quasar host galaxies be measured?
Barth, Aaron J.
core   +2 more sources

Are radio galaxies and quiescent galaxies different? Results from the analysis of HST brightness profiles

, 2005
We present a study of the optical brightness profiles of early type galaxies, using a number of samples of radio galaxies and optically selected elliptical galaxies.
A. Capetti, Bender, Bender, Bender, Bettoni, Bettoni, Byun, Capetti, Capetti, Carollo, Carollo, Chiaberge, Crane, De Koff, de Ruiter, de Ruiter, Djorgovski, Dressler, Faber, Fanti, Ferrarese, Gebhardt, Gonzalez-Serrano, Gonzalez-Serrano, Graham, Graham, H. R. de Ruiter, Jaffe, Kormendy, L. Santantonio, Laine, Lauer, Lauer, Lauer, Lauer, Lucy, Magorrian, Martel, McLure, McLure, Milosavljevic, Morganti, Morganti, P. Parma, Parma, Parma, Parma, Pellegrini, R. Fanti, R. Morganti, Ravindranath, Rest, Richardson, Sandage, Smith, Trujillo, van der Marel, Verdoes Kleijn, Wandel, Wilson, Woo   +60 more
core   +1 more source

Are galaxies with AGN a transition population?

, 2007
We present the results of an analysis of a well-selected sample of galaxies with active and inactive galactic nuclei from the Sloan Digital Sky Survey, in the range 0.01 < z < 0.16. The SDSS galaxy catalogue was split into two classes of active galaxies,
Adelman-McCarthy, Allen, Baldry, Baldry, Baldwin, Balogh, Blandford, Blanton, Blanton, Bower, Brinchmann, C. G. Mundell, Cowie, Cross, Dressler, Driver, Drory, Dumas, Ferrarese, Fukugita, Gebhardt, González Delgado, Grupe, Gunn, Haines, Hao, Hao, Heckman, Ho, Hogg, Hopkins, Huchra, I. K. Baldry, Kauffmann, Kauffmann, Kauffmann, Kennicutt, Kewley, King, Komossa, Li, Lilly, Liske, Lynden-Bell, Martin, Mathur, Merritt, Mihos, Miller, Nandra, P. B. Westoby, Pier, Rush, Sarzi, Schlegel, Schmidt, Springel, Stoughton, Strateva, Struck, Tremonti, Treu, York   +62 more
core   +2 more sources

Molecular gas in nearby powerful radio galaxies [PDF]

, 2001
We report the detection of CO(1-0) and CO(2-1) emission from the central region of nearby 3CR radio galaxies (z$
A Eckart, AR Martel, AS Evans, AS Evans, EL Zirbel, EP Smith, EP Smith, GR Knapp, H Spinrad, IF Mirabel, J Braine, J Lim, JM Mazzarella, PM Bryant, T Wiklind, T Wiklind   +15 more
core   +2 more sources

Megamaser Activity in Active Galaxies [PDF]

Symposium - International Astronomical Union, 1999
Megamaser emission provides an unprecedented view of the inner nuclear regions of active galaxies. The characteristics of OH, H2CO, and H2O sources identify different physical environments in the nuclei of megamaser host galaxies. Various classification schemes suggest a dominant starburst nature for the OH and H2CO sources providing the NIR/FIR ...
openaire   +2 more sources

Dust-obscured Galaxies with Broken Power-law Spectral Energy Distributions Discovered by UNIONS

The Astrophysical Journal
We report on the spectral energy distributions (SEDs) of infrared (IR)-bright dust-obscured galaxies (DOGs) with ( i − [22]) _AB ≥ 7.0. Using photometry from the deep and wide Ultraviolet Near-Infrared Optical Northern Survey, combined with near-IR (NIR)
Taketo Yoshida, Tohru Nagao, Yoshiki Toba, Akatoki Noboriguchi, Kohei Ichikawa, Hendrik Hildebrandt, Naomichi Yutani, Kenneth C. Chambers, Ryo Iwamoto, Seira Kobayashi, Masamune Oguri, Ken Osato, Kohei Shibata, Yuxing Zhong   +13 more
doaj   +1 more source

Stellar populations in active galaxies [PDF]

Proceedings of the International Astronomical Union, 2004
To appear in "The Interplay among Black Holes, Stars and ISM in Galactic Nuclei", T. Storchi Bergmann, L.C. Ho & H.R. Schmitt, eds., Proc IAU Symp 222 (Cambridge University Press)
openaire   +2 more sources

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Intensive Broadband Reverberation Mapping of Fairall 9 with 1.8 yr of Daily Swift Monitoring

The Astrophysical Journal
We present 1.8 yr of near-daily Swift monitoring of the bright, strongly variable Type 1 active galactic nucleus (AGN) Fairall 9. Totaling 575 successful visits, this is the largest such campaign reported to date.
R. Edelson, B. M. Peterson, J. Gelbord, K. Horne, M. Goad, I. McHardy, S. Vaughan, M. Vestergaard   +7 more
doaj   +1 more source

Infrared Surface Brightness Analysis of Galaxies in Compact Groups

, 2006
Images of 7 Compact groups of galaxies (CG) were obtained using the 2.1m telescope in San Pedro Martir (B.C. Mexico) equipped with the NIR camera CAMILA.
Bravo-Alfaro, H., Coziol, R., Plauchu-Frayn, I.   +2 more
core   +2 more sources