QUASARS EXPLAINED IN MOST SIMPLE WAY
Quasars the brightest objects in the universe also termed as quasi-stellar object QSO is an extremely luminous active galactic nucleus (AGN). They are believed to be the most distant objects detected in the universe. Quasars are located in black holes in the center of the galaxy. Quasars emit energies of millions, billions, or even trillions of electron volts. This energy exceeds the total of the light all the stars within a galaxy. The brightest in the universe, they shine anywhere 10-100000 times brighter than the Milky Way.
But what is a Quasar actually and how it is formed?
We know that every galaxies have a supermassive black holes at their centers; some billion of times the mass of the sun. When material gets too close, it forms an accretion disk around the black hole. It heats up to millions of degrees, blasting out an enormous amount of radiation. The magnetic environment around the black hole form twin jets of materials which flow into space for millions of light-years and this is called an AGN, an active galactic nucleus. When this jets are at an angle to our view we see a quasar.
Does the Milky Way galaxy have a quasar?
The supermassive black holes are not always consuming materials and when they run out of material or food, the jet run out of power and shut down until something else gets too close, the whole system starts again. The Milky Way galaxy has a supermassive black hole at it's center, and it's all out of food. It doesn't have an active galactic nucleus, and so, we don't appear as a quasar to some distant galaxy.
We may have in the past, and may again in the future.
The Comprendia was founded in 2019 owned and managed by Neelabh Jaiswal is an Indian technology news and science website which covers the intersection of science, astronomy, technology and engineering. It's mission is to provide in-depth relevant information and knowledge.
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