News articles tagged with 'quasar' (Page 3)
'Cosmic ghost' discovered by volunteer astronomer
— 5 Aug 2008 19:54 | AstronomyWhen Yale astrophysicist Kevin Schawinski and his colleagues at Oxford University enlisted public support in cataloguing galaxies, they never envisioned the strange object Hanny van…
Quasars' accretion disks reveal their true colours
— 23 Jul 2008 17:00 | AstronomyQuasars are the brilliant cores of remote galaxies, thought to be powered by supermassive black holes accreting surrounding gas. Central to this picture is a putative accretion disk…
First accurate measurement of the temperature of the cosmic background at an early epoch
— 13 May 2008 10:59 | AstronomyAstronomers have made use of ESO's Very Large Telescope to detect for the first time in the ultraviolet the carbon monoxide molecule in a galaxy located almost 11 billion light-years…
18 billions of suns support Einstein's theory
— 17 Apr 2008 13:18 | AstronomyAstronomers have confirmed the binary nature of OJ 287, a very massive black hole in the centre of a very distant galaxy in the constellation of Cancer. A central black hole, with a…
XMM-Newton surprised by a rare type of galaxy
— 8 Apr 2008 10:44 | AstronomyXMM-Newton has been surprised by a rare type of galaxy, from which it has detected a higher number of X-rays than thought possible. The observation gives new insight into the powerful…
RIT study confirms supermassive black holes produce powerful galaxy-shaping winds
— 31 Oct 2007 22:50 | AstronomySupermassive black holes can produce powerful winds that shape a galaxy and determine their own growth, confirms a group of scientists from Rochester Institute of Technology. The RIT…
Hertfordshire astronomers gather new evidence about stars in our galaxy and distant quasars
— 31 Oct 2007 10:30 | AstronomyAstronomers from the Centre for Astrophysics Research at the University of Hertfordshire have provided the first evidence as to why stars are able to continue to accrete matter and…
Astronomers unmask missing black holes
— 27 Oct 2007 07:38 | AstronomyAn international team of astronomers including experts from Durham University have unmasked hundreds of black holes hiding deep inside dusty galaxies billions of light-years away. The…
Missing black hole report: Hundreds found!
— 25 Oct 2007 21:51 | AstronomyAstronomers have unmasked hundreds of black holes hiding deep inside dusty galaxies billions of light-years away. The massive, growing black holes, discovered by NASA's Spitzer and…
Hubble spies shells of sparkling stars around quasar
— 25 Oct 2007 17:00 | AstronomyWhat has appeared as a mild-mannered elliptical galaxy in previous studies is revealing its wild side in new images taken with NASA's Hubble Space Telescope. The Hubble photos show…