For one, a black hole can hardly be observed directly (the Hawking radiation is expected to exist, but it would be way too weak). A quasar (related to material falling into the black hole) is one way the black hole can be observed.Also, the quasar can play quite an active role in the formation of a galaxy.
Astronomers have detected a quasar in a distant galaxy.
They are separate phenomenon and different principals are in action.
it is the quasar
It is believed that quasars are most likely caused by supermassive black holes. Matter falling into the black hole would emit the radiation that has been observed.
It is not.
Quasar Padamsee was born in 1978.
Twin Quasar was created in 1979.
a large redshift in the spectrum of the quasar.
A binary quasar is a pair of quasars which gravitationally interact with each other, unlike a standard double quasar, which does not interact.
Quasar - Wendell Vaughn - was created in 1978.
Quasi-stellar radio source.See related for information about a quasar
quasar, are you doing this for homework :D