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.
They are separate phenomenon and different principals are in action.
it is the quasar
Astronomers have detected a quasar in a distant galaxy.
The oldest quasar discovered is 13.05 billion years old, dating back to when the universe was just 690 million years old. This quasar is known as J0313-1806 and was identified by astronomers using data from multiple observatories, including the Atacama Large Millimeter/submillimeter Array (ALMA) and the W.M. Keck Observatory.
The quasar method is a technique used in astrophysics to estimate the distances to distant celestial objects. It involves observing the spectra of quasars, which are extremely bright and distant objects, to determine the redshift caused by the expansion of the universe. By comparing the redshift of a quasar with known properties to that of a target object, astronomers can infer the distance to the target object.
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.
A quasar is a celestial object that emits an extremely large amount of energy, often appearing as a bright point of light in the sky. Astronomers study quasars to learn more about the early universe and distant galaxies.
a large redshift in the spectrum of the quasar.
Quasar Padamsee was born in 1978.
Twin Quasar was created in 1979.
The temperature of a quasar is directly related to its overall energy output. Quasars are extremely hot and luminous objects, with higher temperatures corresponding to higher energy outputs. This means that as the temperature of a quasar increases, so does its energy output.