45 min
Changing active cores
Astrophysics, Astronomy and seminar by Frédéric Marin, Strasbourg
Hosted by Collège de France
Monday 17:45 Paris (GMT+1)
Recording available
Amphithéâtre Marguerite-de-Navarre, Site Marcelin-Berthelot
Recording
Abstract
The two familiar classes of Seyfert galaxies differ in their emission-line widths and are often explained through viewing angle in unified models of active nuclei. This seminar examines changing-look nuclei that switch class within months or years and the challenge they pose to that interpretation.
Topics
Seyfert galaxiesemission-line widthsviewing angleunified modelsactive nucleichanging-look nuclei