Astronomers catch black hole shrouded in molecular cloud

Adjust Comment Print

"[But] the origins of such supermassive black holes remain unknown". Science Mag adds that it is far bigger compared to black holes born from single stars but are relatively smaller compared to the giant black holes found sitting in the middle of several other galaxies.

Over time, astronomers have discovered evidence for star-sized black holes whose masses are about ten times the mass of our Sun. One theory, The Guardian said, is that smaller black holes eventually merge together to form larger ones. The location of a potential black hole weighing as much as 100,000 suns is decisively the center stride in the process that cosmologists have looked for.

In Japan, Astronomers from the Keio University using the ALMA telescope in Chile were detecting a gas cloud to understand the movement of its gases.

What they saw was molecules in that elliptical cloud - which is 150 trillion kilometres wide -being pulled around by vast gravitational forces.

According to computer models, the most likely cause was a black hole, not more than 1.4 trillion kilometres across.

The smallest black holes, stellar black holes, form when certain types of stars explode at the end of their life cycles, but scientists are unsure how supermassive black holes form.

It is widely accepted that supermassive black holes - that are 10 billion times bigger than the Sun - reside at the centres of galaxies, but we do not know how they form.

So-called intermediate-mass black holes fill a gap in astronomer's knowledge of the most massive objects in the universe.

Big win for India, BRICS declaration names lashkar, jash as terror concerns
The plateau is claimed by both China and the tiny kingdom of Bhutan, whose external security is handled by India. Troops of both the countries withdrew last week.

Located near the clump of gas was a source of radio waves resembling those of Sagittarius A, the massive black hole at the center of the Milky Way, Science reports.

Black holes don't emit their own light. If these are plentiful, as astronomers theorize, they could merge at the center of a galaxy to form a supermassive black hole.

"The most exciting thing is the likelihood that intermediate mass black holes are real", Schawinski says. The researchers spotted what appeared to be a huge cloud of gas behaving oddly in the interior of the Milky Way.

The observations were made by astronomers in Japan, who used the 45-metre Nobeyama radio telescope in Chile to investigate odd activity within a cloud of gas in the interior of the Milky Way. Some believe midsized black holes are born in the cores of dense star clusters, of which there are about 150 in the Milky Way, but Oka's team says CO-0.40-0.22* is way too big to have arisen that way.

"We think some of those black holes are the seeds from which the much larger supermassive black holes grow to at least a million times more massive".

Besides, the theoretical studies predict that there may be 100 million to a billion numbers of the black holes exist in the Milky Way, from which only around 60 black holes have been detected officially. Finding out where it originated is much more hard, but the team believes it could have been the core of a dwarf galaxy that the Milky Way swallowed at some point in its history.

"Further detection of such compact high-velocity features in various environments may increase the number of non-luminous black hole candidate and thereby increase targets to search for evidential proof of general relativity".

They conclude their paper by saying that such a discovery would make a considerable contribution to the progress of modern physics.

Comments