Seminars schedule

Astrophysics Colloquium
Astrophysics Journal Club
Astrophysics Seminar
Astrophysics Ph.D. Defence
Dennis Sciama Memorial Lecture
Astrophysics Cosmology Monday Digest
Astroparticle Physics Colloquium
Astroparticle Physics Seminar
Astroparticle Physics Coffee
Astroparticle Physics Ph.D. Defence

Show other seminars
Tue 17 Wed 18 Thu 19 Fri 20 Sat 21 Sun 22 Mon 23
Room 135

Tuesday 17 October 2017

Room 135 h: 14:00 Active Galactic Nuclei: what’s in a name?
Paolo Padovani AGN are quite unique astronomical sources that cover the full electromagnetic spectrum over more than twenty orders of magnitude in frequency, with different bands providing windows on the physics of different sub-structures. They come in a large number of flavours only partially related to intrinsic differences. I will highlight the types of sources selected in different bands, the relevant selection effects and biases, and the underlying physical processes. I will then look at the ``big picture'' by describing the most important parameters one needs to describe the variety of AGN classes and by discussing AGN at all frequencies. I will conclude with a look at the most pressing open issues and the main new facilities, which will flood us with new data to tackle them. The talk is based on a recent review paper I have published in Astronomy and Astrophysics Review and should be useful to all astronomers, irrespective of their field of research.
Astrophysics Seminar