Outbursts from a Massive Star

Using Chandra, astronomers have discovered a previously hidden black hole or neutron star companion that is triggering repeated outbursts from a giant, unstable star.

Image Credit: X-ray: NASA/CXC/Univ. of Virginia/M. Aghakhanloo et al.; Optical: SDSS; Image Processing: NASA/CXC/SAO/P. Edmonds

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