Astronomy and Astrophysics
Formation of Black Holes: The most astonishing phenomenon of universe!!!
Through my earlier posts, I explained that after
chandrashekhar limit, white dwarfs starts to form and
after Tolman-Oppenheimer-Volkoff limit, Neutron star starts to form.
But, real magic starts when the mass of star goes
above the Tolman-Oppenheimer-Volkoff limit. When mass goes above it, black
holes begin to form.
Stellar black holes form when the
center of a very massive star collapses in upon itself. This collapse also
causes a supernova, or an exploding star, that blasts part of the star into space.
If
the mass of the compressed remnant of
the star exceeds about 3 - 4 solar masses, then even the degeneracy
pressure of neutrons is insufficient to halt the collapse and,
instead of forming a neutron star, the core collapses completely into
a gravitational singularity, a single point containing all
the mass of the entire original star. The gravity in
such a phenomenon is so strong that it overwhelms all other forces, to the
extent that even light cannot escape from it, hence the
name black hole. Thus, the gravity of a body just a few times
denser than a neutron star would result in its inevitable further
collapse into a black hole.
Primordial black holes are thought to
have formed in the early universe, soon after the big bang.
Real Pic of Black Hole |
Scientists think supermassive black
holes formed at the same time as the galaxy they are in. The size of the
supermassive black hole is related to the size and mass of the galaxy it is in.
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Thanks for reading.....
See you next time!!!
-Ratnadeep Das Choudhury
Founder and Writer of The Dynamic Frequency
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