News tagged with massive black hole

Related topics:

Ancient black hole defied rules of galaxy formation

Black holes can be found at the centres of most galaxies. Most have little mass compared with their host galaxy. ETH researchers, however, have discovered a particularly massive black hole, which clearly grew so quickly that ...

dateJul 09, 2015 in Astronomy
shares133 comments 75

Monster black hole discovered at cosmic dawn

Scientists have discovered the brightest quasar in the early universe, powered by the most massive black hole yet known at that time. The international team led by astronomers from Peking University in China and from the ...

dateFeb 25, 2015 in Astronomy
shares6361 comments 59

Dark matter guides growth of supermassive black holes

Every massive galaxy has a black hole at its center, and the heftier the galaxy, the bigger its black hole. But why are the two related? After all, the black hole is millions of times smaller and less massive than its home ...

dateFeb 18, 2015 in Astronomy
shares200 comments 63

Galactic 'hailstorm' in the early universe

Two teams of astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars - extremely luminous ...

dateJan 16, 2015 in Astronomy
shares916 comments 16

Ultra-luminous X-ray sources in starburst galaxies

Ultra-luminous X-ray sources (ULXs) are point sources in the sky that are so bright in X-rays that each emits more radiation than a million suns emit at all wavelengths. ULXs are rare. Most galaxies (including our own Milky ...

dateDec 22, 2014 in Astronomy
shares0 comments 0

Mystery of dwarf galaxy could be ejected black hole

An international team of researchers analyzing decades of observations from many facilities—including the W. M. Keck Observatory on Mauna Kea, the Pan-STARRS1 telescope on Haleakala and NASA's Swift satellite—has discovered ...

dateNov 19, 2014 in Astronomy
shares0 comments 1