Skip to main content

Types of black hole

What is a black hole ?

A black hole in space is a region where the gravitational force is so strong that even light can not escape it.  Any matter which comes under the influence of a  black hole will be crushed down to a confined space and is being eaten by the black hole.

 Black holes are formed when a star dies. Not every star can become a black hole only which have mass 1.4 times the mass of our sun. ( approx   2.8E30). A few black holes are orbited by the other heavenly bodies and are slowly eaten away by the black holes.

 As the matter falls towards the event horizon it gets heated due to the increasing gravitational pull and the friction and forms a bright circular disc around the black hole known as Assertion disc.  

On the basis of mass and sizes black holes has been divided into four categories:-

1.) Stellar black holes 
When a star with a mass range from five to several tens times of the solar masses collapses due to its own gravitational force the stellar black hole is formed. 

types of black hole
Illustration of a stellar black hole

This is the most abundant type of black hole in the galaxy. Several dozens of stellar black hole may exist within the Milky Way galaxy.

  
2.) Intermediate black holes 
An intermediate black hole is a class of black holes in which mass varies from  10^2 to 10^5 times the mass of our sun.

types of black hole
Illustration of an intermediate black hole

Several intermediate black hole candidates have been discovered in our galaxy and other galaxies.

3.) Supermassive  black holes 
These are the largest type of black holes ever found. They are mainly found at the centre of the massive galaxies. These black holes varies from several hundred thousand to a billion times the mass of the sun.

types of black hole
Real image of the supermassive black hole at the centre of Messier 87 galaxy

In 2019 astronomers were finally able to process the first-ever picture of a supermassive black hole at the centre of Messier 87 galaxy.  


4.) Miniature black holes
 Also known as Micro black holes are the hypothetical tiny black hole for which quantum mechanical effects plays an important role. This hypothesis was suggested by Stephen Hawking back in 1971. Further studies suggest that a micro black hole could be at energies at low as the Tev range, which is available in a particle such as large hadron collider

Illustration o miniature black hole


  

Labels

Labels:

Comments

  1. UnknownMay 19, 2020 at 6:50 PM


    plenty of knowledge confined in small stanzas
    like black hole

    love the way of writing and explaining things.

    ReplyDelete

Post a Comment

Popular posts from this blog

10 hypothetical stars you don't know about

Blue Dwarf :- It is theorized to be developed from a red dwarf when it looses most of it's hydrogen supply.We haven't found any blue dwarf because red dwarf fuses their hydrogen slowly and currently the universe might not old enough to produce any blue dwarf. Black Dwarf  :- It is thought to be the come from a white dwarf which has exhausted all it's fuel and heat energy which now no further emits radiation and are very hard to detect, fortunately, it do retain it's mass allowing scientists to study it's the gravitational field. It is concluded that the time required for a black dwarf to be formed is longer than the age of the universe thus we haven't found it yet. Frozen star :-There is a probability that this star will form in the distant future when the abundance of heavier metals will be more than it is today which is known as the metallicity of the interstellar medium. It is calculated the temperature of this star will be 273 K or 0-degree celsius. T...
1 comment
Read more

Understand the Background of Aurora Borealis

What is an aurora? Aurora Borealis or northern lights is one of the most beautiful phenomena that nature has given us. It is a natural light display in the night sky. It is mainly observed in the high latitude areas.  It is an impressive and fascinating demonstration of how the very fast-moving charged particles interact with the atmosphere of the earth due to the magnetic field of the earth. It worth bearing the cold outside to experience this unforgettable and soothing scene. It makes you feel connected to nature and the divine. People have often confusion between aurora borealis and aurora australis but there is no difference between except for their location when the lights are observed in north pole then it is called as aurora borealis( or northern lights) and when seen at the south pole it is called as aurora borealis(or southern lights). Illustration of aurora formation What causes this amazing and magical phenom enon?   Our sun is a giant ball of g...
1 comment
Read more