Skip to Main content Skip to Navigation
Journal articles

Galaxies et trous noirs supermassifs

Abstract : A few percents of galaxies are classified as « active ». An active galaxy is a galaxy whose nucleus emits more energy than the whole galaxy in the form of electromagnetic radiation, relativistic particles, or mechanical energy. It is activated by a supermassive black hole fueled by matter falling on it, whose characteristics (Eddington luminosity, spin) are recalled. The class includes quasars and Seyfert galaxies. All massive "non active" galaxies contain a supermassive black hole, but there is not enough matter in its environment so as the nucleus becomes luminous.

Different items are considered in the paper : how supermassive black holes are fueled, the accretion disc, the jets and the winds, the unified model of active galaxies, how are determined the masses of supermassive black holes, and what is the relation between the evolution of galaxies and supermassive black holes.

Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03713170
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Monday, July 4, 2022 - 2:40:25 PM
Last modification on : Tuesday, August 2, 2022 - 4:17:37 AM

Identifiers

Collections

Citation

Suzy Collin-Zahn. Galaxies et trous noirs supermassifs. L'astronomie, 2016, 130, pp.38-47. ⟨insu-03713170⟩

Share

Metrics

Record views

1