Quasar (super massive black hole) are formerly knows as black hole or white hole quasars, blasar, 3C273 are the one of the intriguing phenomenon of Universe. They are like an elephant that can breath fires. Sounds interesting right? So let's get in to it.i t is powered by an supermassive black hole which helps to used as particle accelerator.
Quasars( black holes) are part of a class of objects known as active galactic nuclei (AGN) also known as supermassive black hole. Other classes include Seyfert galaxies and blazars and black hole. All three require supermassive black holes to power them.
Prior to the launch of Hubble a handful of black hole candidates had been studied but the limitations of ground based astronomy were such that irrefutable evidence for their existence could not be obtained. Black holes themselves, by definition, cannot be observed, since no light can escape from them.
However, astronomers can study the effects of black holes on their surroundings. These include powerful jets of electrons that travel huge distances, many thousands of light years from the centres of the galaxies.
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Ramanan Sekar B.Sc Physics, Sourashtra College, Madurai. Fond of Astrophysics and Nuclear Physics.currently running Youtube channel "Sciphytv tamil"
Future Reference:
What is Black hole? Tamil
https://youtu.be/XAaWJB2Z6c4
Quasars: Definition & Facts About Brightest Objects in the Universe
http://bit.ly/2s44EPL
StarChild: Quasars - StarChild: A Learning Center for Young Astronomers
https://goo.gl/c96Egf
What Is A Quasar? - Universe Today
http://bit.ly/2tXqMfE
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2. Dreamy Flashback by Kevin MacLeod is licensed under aCreative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
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