why is super nova called black hole?

Answer 1

A black hole is an object predicted by general relativity with a gravitational field so powerful that even electromagnetic radiation cannot escape its pull.

A black hole is defined to be a region of space-time where escape to the outside universe is impossible. The boundary of this region is a surface called the event horizon. This surface is not a physically tangible one, but merely a figurative concept of an imaginary boundary. Nothing can move from inside the event horizon to the outside, even briefly.

Theoretically, a black hole can be any size. Astrophysicists expect to find black holes with masses ranging between roughly the mass of the Sun ("stellar-mass" black holes) to many millions of times the mass of the Sun (supermassive black holes).

The existence of black holes in the universe is well supported by astronomical observation, particularly from studying X-ray emission from X-ray binaries and active galactic nuclei. It has also been hypothesized that black holes radiate energy due to quantum mechanical effects known as Hawking radiation.

A supernova (pl. supernovae) is a stellar explosion which produces an extremely bright object made of plasma that fades to invisibility over weeks or months. A supernova briefly outshines its entire host galaxy. It would take 10 billion years for the Sun to produce the energy output of an ordinary Type II supernova. Stars beneath the Chandrasekhar limit, such as the Sun, are too light to ever become supernovae and will evolve into white dwarfs.

There are several different types of supernovae and two possible routes to their formation. A massive star may cease to generate fusion energy from fusing the nuclei of atoms in its core, and collapse under the force of its own gravity to form a neutron star or black hole. Alternatively, a white dwarf star may accumulate material from a companion star until it nears its Chandrasekhar limit and undergoes runaway nuclear fusion in its interior, completely disrupting it. This second type of supernova is distinct from a surface thermonuclear explosion on a white dwarf, which is called a nova. In either type of supernova, the resulting explosion expels much or all of the stellar material with great force. The explosion drives a blast wave into the surrounding space, forming a supernova remnant.

"Nova" is Latin for "new", referring to what appears to be a very bright new star shining in the celestial sphere; the prefix "super" distinguishes this from an ordinary nova, which also involves a star increasing in brightness, though to a lesser extent and through a different mechanism.

Henca these two are different & not the same!!!

Answer 2

jasmine, a super nova is NOT the same as a black hole. Super nova is the explosion that big stars (>than 3 Suns I think) go through at the end of their lives. After this, if the star is big enough, a black hole will be formed (a very dense mater in a very tight place). If not, a neutron star will be there instead.

Answer 3

They are not the same thing. A large enough star, containing more than 3 to 5 times the mass of our sun, upon collapsing, will pass what is called the Tolman-Oppenheimer-Volkoff limit. It will collapse in upon itself and form a black hole, an object so dense and massive that even light cannot escape its gravity.

In short, often a black hole is the result of a very large sun going super-nova, but they are not the same thing.

Answer 4

super nova is when a star explodes, collapes, a black hole is called a black hole becuase not even light can escape it so its black, a collapesed star can turn into a black whole but they are not the same thing

Answer 5

Yeah this question is off the mark

Answer 6

Oh! I didn't know that!

Answer 7

I don't know