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Spinning stars shed new light on strange signal coming from galactic center

The discovery may mean scientists have to re-think where they look for clues about dark matter

Newsroom July 8 09:59

Researchers from The Australian National University (ANU) have found an alternative explanation for a mysterious gamma-ray signal coming from the center of the galaxy, which was long claimed as a signature of dark matter. Gamma-rays are the form of electromagnetic radiation with the shortest wavelength and highest energy.

Co-author of the study Associate Professor Roland Crocker said this particular gamma-ray signal—known as the Galactic Center Excess—may actually come from a specific type of rapidly-rotating neutron star, the super-dense stellar remnants of some stars much more massive than our sun.

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The Galactic Center Excess is an unexpected concentration of gamma-rays emerging from the center of our galaxy that has long puzzled astronomers. “Our work does not throw any doubt on the existence of the signal, but offers another potential source,” Associate Professor Crocker said.

Read more: Archaeology News Network

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