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Illustration of 4U 0614+091, an X-ray binary system

Illustration of 4U 0614+091, an X-ray binary system


Date: 21 June 2010
Satellite: XMM-Newton
Depicts: Illustration of the X-ray binary system, 4U 0614+091
Copyright: ESA

This illustration depicts 4U 0614+091, an exotic binary system composed of two stellar remnants, a neutron star and a white dwarf.

A long-sought-after emission line of oxygen, carrying the imprint of strong gravitational fields, has been discovered in the XMM-Newton spectrum of this system.

Astronomers can use this line to probe extreme gravity effects in the region close to the surface of a neutron star.

Last Update: 1 September 2019
20-Oct-2019 23:34 UT

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