Active Galactic Nuclei and Quasars!

Join this channel to get access to perks: https://www.youtube.com/channel/UCdnMLnE83DzHgrVJxOhZdLw/join Some galaxies have cores that outshine the entire rest of the galaxy. What are these amazing phenomena, and how do they manifest? This is part of my complete intro Astronomy class that I taught at Willam Paterson University and CUNY Hunter. Active galactic nucleus: https://en.wikipedia.org/wiki/Active_galactic_nucleus Quasar: https://en.wikipedia.org/wiki/Quasar Messier 87: https://en.wikipedia.org/wiki/Messier_87 Gamma Rays in Active Galactic Nuclei: https://svs.gsfc.nasa.gov/20135 Bremsstrahlung X-Rays: http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/xrayc.html Synchrotron Radiation: http://hyperphysics.phy-astr.gsu.edu/hbase/Particles/synchrotron.html Synchrotron Radiation: https://en.wikipedia.org/wiki/Synchrotron_radiation 0:00 Introduction 0:41 Discovery of Active Galaxies 4:04 Observations of Active Galaxies 7:28 Observations of Seyfert Galaxies 8:20 Normal Galactic Nuclei 12:55 Radio Galaxies 18:15 Radio Galaxy Lobes of Cygnus A 21:57 Active Radio Galaxy "Hercules A" 23:15 Synchrotron Emission of Radio Light 27:33 Radio Emission from M87 33:32 AGN are extra-luminous over all wavelengths 34:27 Centaurus A in Ultraviolet (GalEx Mission) 35:23 Centaurus A in X-Rays (Chandra Mission) 35:58 X-Rays from Inverse Compton Scattering 37:14 Active Galaxy Spectrum Schematic 37:53 Active Galactic Nuclei Spectra Explained 38:27 Active Galaxy Spectrum for NGC 1086 39:51 Active Galactic Nuclei Time Variations NGC 3783 41:36 Quasi-Stellar Radio Sources 42:33 Odd Spectra of Quasars Understood. 45:25 Quasars have strange spectra 48:01 Cosmic Beacons 49:11 HST Spies Galaxy-Quasar Connection in 1994 50:03 Quasars and Radio Lobes 50:26 Luminosity Ranges of Galaxies and Quasars 51:35 Galaxy Activity Compared