The diversity of AGN variability: Some highlights and challenges
Abstract
This article focuses on certain variability and emission characteristics of Active Galactic Nuclei (AGN), especially their radio-loud subset consisting of quasars, BL Lacs and -ray detected narrow-line Seyfert 1 galaxies, all of which exhibit relativistically beamed jets of non-thermal radiation. Several striking trends and correlations, including some that have received scant attention, drawn from the available comparatively recent literature are highlighted. These can provide very useful inputs to models of AGN and be probed at a deeper level using the optical telescopes recently set up at Devasthal (Nainital).
- Publication:
-
Bulletin de la Societe Royale des Sciences de Liege
- Pub Date:
- October 2019
- DOI:
- 10.48550/arXiv.1906.11339
- arXiv:
- arXiv:1906.11339
- Bibcode:
- 2019BSRSL..88..132G
- Keywords:
-
- galaxies: active;
- galaxies: jets;
- quasars;
- BL Lacertae;
- radiation mechanisms;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 10 pages, 8 figures, in second Belgo-Indian Network for Astronomy &