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Latest Ultraluminous X-ray source Stories

Lightweight Black Hole Has Elegant Manners
2013-11-29 05:00:59

April Flowers for redOrbit.com - Your Universe Online Our understanding of how some black holes consume matter might be changed by new observations of a black hole powering an energetic X-ray source in a galaxy some 22 million light years away. The findings, published in a recent issue of Nature, indicate that this particular black hole, thought to be the engine behind the X-ray source’s high-energy light output, is unexpectedly lightweight. Additionally, in spite of the generous amount...

NuSTAR Helps Scientists Hunt For Medium-Sized Black Holes
2013-11-27 15:39:33

Lee Rannals for redOrbit.com - Your Universe Online NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) is helping scientists determine whether black holes need a medium-sized category. Black holes are known to either come in masses of only about 10 times that of our sun, or the equivalent in mass of up to 10 billion suns. However, NuSTAR could be finally finding a middle ground. "Exactly how intermediate-sized black holes would form remains an open issue," Dominic Walton, of the...

NuSTAR Observes Dormant Black Hole In Nearby Sculptor Galaxy
2013-06-12 08:35:23

April Flowers for redOrbit.com - Your Universe Online NASA´s Chandra X-ray Observatory caught signs of what appeared to be a black hole eating gas at the middle of the nearby Sculptor Galaxy nearly a decade ago. A new observation by NASA´s Nuclear Spectroscopic Telescope Array (NuSTAR) has found the black hole asleep. Details of NuSTAR´s findings were published in the Astrophysical Journal. "Our results imply that the black hole went dormant in the past 10 years," said...

Chandra Captures Supernova Shock Wave
2012-05-16 03:13:51

Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery may help astronomers understand why some supernovas are much more powerful than others. On Nov. 3, 2010, a supernova was discovered in the galaxy UGC 5189A, located about 160 million light years away. Using data from the All Sky Automated Survey telescope in Hawaii taken earlier, astronomers...

Chandra Reveals Outburst From Old Black Holes
2012-04-30 14:03:12

Astronomers using NASA's Chandra X-ray Observatory have found evidence for a population of old stellar black holes. The discovery provides new insight into the nature of stellar black holes, which is a class that can produce as much energy in X-rays as what a million suns could radiate at all wavelengths. The astronomers used Chandra to find an outburst that was produced by a black hole in the spiral galaxy M83, which is located about 15 million light years from Earth. Chandra helped...

Bright Andromeda Object Caused By 'Normal' Black Hole
2012-02-24 04:24:28

A spectacularly bright object recently spotted in one of the Milky Way's neighboring galaxies is the result of a "normal" stellar black hole, astronomers have found. An international team of scientists, led by Dr Matt Middleton, of Durham University, analyzed the Ultraluminous X-ray Source (ULX), which was originally discovered in the Andromeda galaxy by NASA's Chandra x-ray observatory. They publish their results in the journals Monthly Notices of the Royal Astronomical Society and...

Image 1 - Monster Galaxies Found To Harbor Record Massive Black Holes
2011-12-06 10:40:02

Astronomers from UC Berkeley have discovered the largest black holes to date -- two monstrous abyssal voids with masses equivalent to more than 10 billion suns, threatening to consume everything in its path within a region five times the size of our own solar system. The massive black holes are at the centers of two galaxies more than 300 million light years away. Such holes could be the gravitational foundations of galaxies and clues to the fates of violent quasars, the powerful...

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2010-09-08 09:34:32

Team led by University of Leicester confirm presence of ultra-bright object in nearby galaxy A group of international astronomers in the UK, France and the USA, led by the University of Leicester, have found proof to confirm the distance and brightness of the most extreme ultra-luminous X-ray source, which may herald a new type of Black Hole. The X-ray source, HLX-1, is the most extreme member of an extraordinary class of objects "“ the ultra-luminous X-ray sources "“ and is...


Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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