X-Ray Astronomy

Intriguing X-Ray Signal Might be Dark Matter Candidate

by Nancy Atkinson June 24, 2014

Want to stay on top of all the space news? Follow @universetoday on Twitter 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, […]

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Amazing New X-Ray Image of the Whirlpool Galaxy Shows it is Dotted with Black Holes

by Shannon Hall June 3, 2014

In any galaxy there are hundreds of X-ray binaries: systems consisting of a black hole capturing and heating material from a relatively low-mass orbiting companion star. But high-mass X-ray binaries — systems consisting of a black hole and an extremely high-mass companion star — are hard to come by. In the Milky Way there’s only […]

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Dense Gas Clouds Blot The View Of Supermassive Black Holes

by Elizabeth Howell February 20, 2014

Gas around supermassive black holes tends to clump into immense clouds, periodically blocking the view of these huge X-ray sources from Earth, new research reveals. Observations of 55 of these “galactic nuclei” revealed at least a dozen times when an X-ray source dimmed for a time as short as a few hours or as long […]

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Stars Boil Before They Blow Up, Says NuSTAR

by Jason Major February 19, 2014

Supernovas are some of the most energetic and powerful events in the observable Universe. Briefly outshining entire galaxies, they are the final, dying  outbursts of stars several times more massive than our Sun. And while we know supernovas are responsible for creating the heavy elements necessary for everything from planets to people to power tools, […]

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New Findings from NuSTAR: A New X-Ray View of the “Hand of God” and More

by David Dickinson January 10, 2014

One star player in this week’s findings out of the 223rd meeting of the American Astronomical Society has been the Nuclear Spectroscopic Telescope Array Mission, also known as NuSTAR. On Thursday, researchers revealed some exciting new results and images from the mission, as well as what we can expect from NuSTAR down the road. Remove […]

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