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The power of quasars originates from supermassive black holes that are believed to exist at the core of most galaxies. The Doppler shifts of stars near the cores of galaxies indicate that they are revolving around tremendous masses with very steep gravity gradients, suggesting black holes.
The oldest visible quasar is over 13 billion years old, which means it needed to already be a supermassive black hole when the universe was very, very young—at least, according to our current ...
First quasar found to seemingly not have a host galaxy HE0450-2958 (Naked Quasar) 2005 Some disputed observations suggest a host galaxy, others do not. First multi-core quasar PG 1302-102: 2014 Binary supermassive black holes within the quasar [37] [38] First quasar containing a recoiling supermassive black hole SDSS J0927+2943: 2008
APM 08279+5255 is a very distant, broad absorption line quasar located in the constellation Lynx. It is magnified and split into multiple images by the gravitational lensing effect of a foreground galaxy through which its light passes. It appears to be a giant elliptical galaxy with a supermassive black hole and associated accretion disk.
The 1997 science-fiction film Men In Black, starring Will Smith and Tommy Lee Jones, was loosely based on The Men in Black comic book series created by Lowell Cunningham and Sandy Carruthers. [11] Cunningham got the idea for the comic when he and a friend saw a black van on the street and his friend joked about government "men in black". [12]
Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.
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They confirmed a small mass for the black hole, implying an even fainter host galaxy than predicted by Merritt et al. (3) Feain et al. (2007) [8] detected radio emission from the quasar, which they interpreted as indicating ongoing star formation, which "contradicts any suggestion that this is a 'naked' quasar'".