x-rays

Intriguing X-Ray Signal Might be Dark Matter Candidate

by Nancy Atkinson June 24, 2014

Could a strange X-ray signal coming from the Perseus galaxy cluster be a hint of the elusive dark matter in our Universe? Using archival data from the Chandra X-ray Observatory and the XMM-Newton mission, astronomers found an unidentified X-ray emission line, or a spike of intensity at a very specific wavelength of X-ray light. This […]

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Black Hole Bonanza! Dozens (Potentially) Found In Andromeda As Another Study Probes X-Rays

by Elizabeth Howell June 17, 2013

More than two DOZEN potential black holes have been found in the nearest galaxy to our own. As if that find wasn’t enough, another research group is teaching us why extremely high-energy X-rays are present in black holes. Elizabeth Howell on Google+

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Combining Light to Reveal Monster Black Holes

by John Williams December 13, 2012

NGC 3627 glows in the combined light of Hubble, Chandra, Spitzer and the Very Large Telescope in this image. Astronomers conducted a survey of 62 galaxies, including NGC 3627 to study monster black holes at their centers. It’s not just pretty, it’s science. Like a starry watercolor, astronomers combining light from Earth and space-based observatories […]

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Recycling Pulsars – The Millisecond Matters…

by Tammy Plotner February 4, 2012

It’s a millisecond pulsar… a rapidly rotating neutron star and it’s about to reach the end of its mass gathering phase. For ages the vampire of this binary system has been sucking matter from a donor star. It has been busy, spinning at incredibly high rotational speeds of about 1 to 10 milliseconds and shooting […]

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Dodging Black Hole Bullets

by Tammy Plotner January 12, 2012

In mid-2009 a binary star system cataloged as H H1743–322 shot off something very unusual. Poised about 28,000 light years distant in the direction of the constellation of Scorpius, this rather ordinary system made up of a normal star and unknown mass black hole was busy exchanging mass. The pair orbits in mere days with […]

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