Results 11 to 20 of about 3,888 (145)

Stellar populations in active galaxies [PDF]

open access: yesProceedings 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

Active Galaxies in the UV

open access: yesAstrophysics and Space Science, 2006
29 pages, 13 figures, Ap&SS in ...
Kollatschny, Wolfram, Ting-Gui, Wang
openaire   +3 more sources

Megamaser Activity in Active Galaxies [PDF]

open access: yesSymposium - 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   +1 more source

Narrow-line Seyfert 1 galaxies and the evolution of galaxies and active galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2000
Narrow Line Seyfert 1 galaxies (NLS1s) are intriguing due to their continuum as well as emission line properties. The observed peculiar properties of the NLS1s are believed to be due to accretion rate close to Eddington limit. As a consequence, for a given luminosity, NLS1s have smaller black hole (BH) masses compared to normal Seyfert galaxies.
openaire   +2 more sources

Active Galactic Nucleus Quenching in Simulated Dwarf Galaxies [PDF]

open access: gold, 2023
Ray S. Sharma   +4 more
openalex   +1 more source

EXTENDED X-RAY EMISSION IN THE H I CAVITY OF NGC 4151: GALAXY-SCALE ACTIVE GALACTIC NUCLEUS FEEDBACK? [PDF]

open access: bronze, 2010
Junfeng Wang   +7 more
openalex   +1 more source

The [O iii] Profiles of Far-infrared Active and Inactive Optically Selected Green Valley Galaxies [PDF]

open access: gold, 2023
Antoine Mahoro   +10 more
openalex   +1 more source

Host galaxy-active galactic nucleus alignments in the Sloan Digital Sky Survey Data Release 7 [PDF]

open access: bronze, 2011
Claudia del P. Lagos   +4 more
openalex   +1 more source

Home - About - Disclaimer - Privacy