Supermassive Black Holes

This is how supermassive black holes prevent star formation

This is how supermassive black holes prevent star formation

The dwarf galaxies under observation were still accumulating gas which should re-start star formation in a red, dead galaxy but wasn't.

Jan 10, 2018, 17:46 PM IST
Supermassive black holes can form tightly bound pairs, says study

Supermassive black holes can form tightly bound pairs, says study

The study published in the journal Nature Astronomy sheds light on a class of black holes having a mass upwards of one million times the mass of the Sun. 
 

Sep 19, 2017, 17:17 PM IST
NASA's SOFIA detects cool dust around active black holes!

NASA's SOFIA detects cool dust around active black holes!

SOFIA flies above 99 percent of the Earth's water vapour, enabling the research group to characterise the properties of the torus-shaped dust structures at far-infrared wavelengths.

Jun 14, 2017, 12:26 PM IST
Chinese space telescope to observe 'big eaters'

Chinese space telescope to observe 'big eaters'

When a black hole swallows too much, the excess matter is converted into two jet-flows perpendicular to the accretion disk of the black hole, which is like a glutton with a bloated belly belching.

May 30, 2017, 00:45 AM IST
Supermassive black holes lurk in most dwarf galaxies: Study

Supermassive black holes lurk in most dwarf galaxies: Study

Scientists have discovered supermassive black holes in two ultra-compact dwarf galaxies.

Apr 18, 2017, 20:37 PM IST
Spotted - Two tiny galaxies with supermassive black holes at the centre

Spotted - Two tiny galaxies with supermassive black holes at the centre

The findings come after a similar feature was found in another ultra-compact dwarf galaxy three years ago.

Apr 18, 2017, 13:25 PM IST
Stars born in winds from supermassive black holes discovered

Stars born in winds from supermassive black holes discovered

Such galactic outflows are driven by the huge energy output from the active and turbulent centres of galaxies.

Mar 28, 2017, 21:21 PM IST
'Cosmic cannibalism' no more a rarity; black holes devour stars more frequently than thought!

'Cosmic cannibalism' no more a rarity; black holes devour stars more frequently than thought!

Supermassive black holes are millions to billions times more massive than our Sun.

Feb 28, 2017, 00:01 AM IST
Our cosmic backyard harbours hidden black holes, says NASA!

Our cosmic backyard harbours hidden black holes, says NASA!

Monster black holes, it seems, also sometimes lurk behind gas and dust, hiding from the gaze of most telescopes.

Jan 08, 2017, 23:35 PM IST
Why some galaxies have become barren

Why some galaxies have become barren

Over the last few billion years, a mysterious kind of galactic warming has caused many galaxies to change from a lively place where new stars formed every now and then to a quiet place devoid of fresh young stars. 

May 26, 2016, 15:55 PM IST
Distant black hole jet discovered in glow of Big Bang!

Distant black hole jet discovered in glow of Big Bang!

The jet, found in the system known as B3 0727+409, is at least 300,000 light years.  

Feb 17, 2016, 10:01 AM IST
Black holes could grow as large as 50 billion Suns: Study

Black holes could grow as large as 50 billion Suns: Study

The only way it could get larger is if a star happened to fall straight in or another black hole merged with it.

Dec 20, 2015, 16:31 PM IST
Cosmic donut around black hole clumpy, not smooth

Cosmic donut around black hole clumpy, not smooth

The new research is important for understanding the growth and evolution of massive black holes and their host galaxies.

Dec 18, 2015, 16:31 PM IST
Scientists find supermassive black holes in nearest quasar Markarian 231

Scientists find supermassive black holes in nearest quasar Markarian 231

A team of astrophysicists and astronomers, led by Dr Youjun Lu of the National Astronomical Observatories of China, has found two supermassive black holes in Markarian 231, the nearest quasar to Earth, using observations from NASA's Hubble Space Telescope.

Aug 28, 2015, 09:32 AM IST
Five 'supermassive' black holes discovered

Five 'supermassive' black holes discovered

Five supermassive black holes that were previously hidden by clouds of dust and gas have been discovered by astronomers who suggest that millions of concealed monster black holes exist in the universe.

Jul 06, 2015, 13:01 PM IST
Pulsing light reveals supermassive black hole merger

Pulsing light reveals supermassive black hole merger

As two galaxies enter the final stages of merging, their supermassive black holes form a “binary” or two black holes that are gravitationally bound to one another. Now, astronomers from University of Maryland have found direct evidence of a pulsing quasar which may substantiate the existence of black hole binaries.

Apr 21, 2015, 11:26 AM IST
How stars, galaxies formed in early Universe

How stars, galaxies formed in early Universe

A new study has provided a deeper insight into how stars and massive galaxies formed in the infancy of our Universe.

Jan 18, 2015, 19:47 PM IST

How supermassive black holes interact with host galaxies

Astronomers have discovered strange and unexpected behavior around the supermassive black hole at the heart of the galaxy NGC 5548.

Jun 20, 2014, 23:17 PM IST

Active supermassive black holes discovered in merging galaxies

A team of astronomers have found at least one supermassive black holes almost always becomes active and luminous by accreting a large amount of material in luminous, gas-rich, merging galaxies.

Jan 29, 2014, 11:57 AM IST

How supermassive black holes are formed

Over billions of years, small black holes can slowly grow supermassive by taking on mass from their surroundings and also by merging with other black holes.

Nov 07, 2013, 22:04 PM IST