What is the source of the power of an active galactic nucleus or Quasar? We observe the supermassive black holes that create these amazing objects.

Supermassive black hole: https://en.wikipedia.org/wiki/Supermassive_black_hole
NGC 4261: https://en.wikipedia.org/wiki/NGC_4261
Centaur A: https://en.wikipedia.org/wiki/Centaurus_A
Centaurus A: A new look at an old friend: http://chandra.harvard.edu/photo/2014/cena/
Messier 87: https://en.wikipedia.org/wiki/Messier_87
Full spectrum of 3C273: http://isdc.unige.ch/3c273/
Arp 299: https://en.wikipedia.org/wiki/Arp_299
NuSTAR and Arp 299: https://www.nustar.caltech.edu/news/nustar150108
M-sigma relationship: https://en.wikipedia.org/wiki/M-sigma_relation
The 2dF QSO Redshift survey (2QZ): http://www.2dfquasar.org/qso_surv.html

00:00 Presentation
0:57 What powers AGN?
1:32 The black hole paradigm
5:37 Models of active galactic nuclei
6:16 Core of the Hubble Galaxy Space Telescope NGC 4261
8:27 The central engine of an active galaxy
10:42 a.m. Gas disk in the core of the active galaxy M87
7:02 p.m. X-rays of braking radiation
23:39 How do supermassive black holes form?
24:47 How are supermassive black holes powered?
25:18 Black holes in colliding galaxies Arp 299
26:49 Do most galaxies have supermassive black holes?
27:37 Black holes in galaxies
34:08 Black holes and galaxy evolution

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