Are there two blackholes in the center of milky way galaxy?

Answer 1

To understand the 'how' of the presence of a supermassive black hole believed to be in the center of the Milky Way, one would need to know of the mechanism of its origin, which is tied to the origin of the galaxy itself. If sufficient matter is present in a given location, gravitational forces cause the matter to 'clump' and if sufficiently strong, it will continue to accrete and gain in mass; above a certain mass, given favorable conditions, a black hole will form. This is believed to have happened during the formation of our galaxy. In the case of the black hole at the galactic center, calculations indicate it has managed to acquire over four million solar masses.

Answer 2

Yes, there should be many black holes in a galaxy and now it is widely accepted that there is Super massive black hole in the heart of almost every galaxy .

Super massive Black hole is the largest type of black hole in a galaxy bearing thousand to billion solar masses . taking the example of our own galaxy , there is a super massive black hole in the region called Sagittarius A . From the motion of star S2, the super massive black hole's mass can be estimated as 4.1 million solar masses . But on 05 December 2011 astronomers discovered the largest super massive black hole ever found is of NGC 4889, weighing about 21 billion solar masses , this giant is located in the constellation Coma that is about 336 million light years from us . Some of the galaxies also have two super massive black holes in their galactic centre (such as Galaxy 0402+379) .

Answer 3

There is one supermassive black hole at the center of the Milky Way. There are probably many smaller ones as well, since some stars become black holes at the end of their lifetime.

Answer 4

Yes - a supermassive blackhole.