technology-news

Dwarf galaxies could help reveal supermassive black holes' origin

Washington, Jan. 9 : Astronomers have discovered more than 100 small, dwarf galaxies with characteristics indicating that they harbor massive black holes feeding on surrounding gas; this could help resolve the question as to how black holes originated and grew in the early universe.


Amy Reines, of the National Radio Astronomy Observatory (NRAO), said that the little galaxies hold the clues to the origin of the first 'seeds' of supermassive black holes in the early universe.

Reines, along with Jenny Greene of Princeton University and Marla Geha of Yale University, analyzed data from the Sloan Digital Sky Survey and found more than 100 dwarf galaxies whose patterns of light emission indicated the presence of massive black holes and their feeding process.

Geha said that the galaxies are comparable in size to the Magellanic Clouds, dwarf satellite galaxies of the Milky Way, asserting that previously, such galaxies were thought to be too small to have such massive black holes.

In the nearby universe, astronomers have found a direct relationship between the mass of a galaxy's central black hole and a "bulge" in its center. This indicates that the black holes and the bulges may have affected each others' growth.

--ANI (Posted on 09-01-2014)

technology-news headlines

Ancient tundra landscape discovered under Greenland Ice Sheet

NASA's Kepler Space Telescope finds Earth's twin

Concrete that never gets a crack!

Tiny robots to help you perform daily chores

Fossil of 325-million-year-old shark-like specie sheds light on evolution of jaws

Soon, wireless power zones to charge your phone

Soon, cheap computers and 'throwaway' cell phones

Scientists identify target for treating dengue

Waste sulphur to produce cheap infra-red devices

When meteors delivered vitamin B3 at your doorstep!

Believe it! These females have penises

How dust affects light reaching us from stars

Quick Links: Goa | Munnar | Pondicherry | Free Yearly Horoscope '2014

Comments

Your e-mail:


Your Full Name:


Type verification image:
verification image, type it in the box

Message:

Back to Top