Team reports that black hole activity can be observed via visible rays
All you need is a 20 cm telescope to observe a nearby, active black hole.
Astronomy
Jan 6, 2016
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Page 14 - News tagged with black hole accretion
Einstein's Cross under the gravitational microlens
A Spanish research team has obtained measurements for the innermost region of a disc of matter in orbital motion around a supermassive black hole in the quasar known as Einstein's Cross (Q2237-0305). It constitutes the most ...
Astronomy
Dec 23, 2015
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Cosmic jets light up black hole's snack
A black hole is often thought of as a giant galactic vacuum cleaner constantly sucking in cosmic material, tearing it apart and swallowing it. So black holes should do exactly the same thing with stars, right?
Astronomy
Dec 16, 2015
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New paper shines light on little-understood process in astronomy
A paper coauthored by Tom Maccarone, a Texas Tech University associate professor in the Department of Physics, studies one of the most important but least understood processes in astronomy: accretion, or the growth in mass ...
Astronomy
Oct 9, 2015
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How massive can black holes get?
Without the light pressure from nuclear fusion to hold back the mass of the star, the outer layers compress inward in an instant. The star dies, exploding violently as a supernova.
Astronomy
Aug 11, 2015
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Unexpectedly little black-hole monsters rapidly suck up surrounding matter
Using the Subaru Telescope, researchers at the Special Astrophysical Observatory in Russia and Kyoto University in Japan have found evidence that enigmatic objects in nearby galaxies - called ultra-luminous X-ray sources ...
Astronomy
Jun 29, 2015
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Researchers characterize mysterious ultraluminous X-ray sources
(Phys.org)—Many black holes are believed to have surrounding accretion disks of matter trapped by gravity and spiraling toward the event horizon. Supercritical accretion disks (SCADs) are those with mass accretion rates ...
Supermassive black hole clears star-making gas from galaxy's core
Many nearby galaxies blast huge, wide-angled outpourings of material from their center, ejecting enough gas and dust to build more than a thousand stars the size of our sun every year. Astronomers have sought the driving ...
Astronomy
Mar 25, 2015
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Could the Milky Way become a quasar?
A quasar is what you get when a supermassive black hole is actively feeding on material at the core of a galaxy. The region around the black hole gets really hot and blasts out radiation that we can see billions of light-years ...
Astronomy
Feb 27, 2015
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Interstellar technology throws light on spinning black holes
The team responsible for the Oscar-nominated visual effects at the centre of Christopher Nolan's epic, Interstellar, have turned science fiction into science fact by providing new insights into the powerful effects of black ...
Astronomy
Feb 13, 2015
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