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Einstein Probe catches X-ray odd couple

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Summary
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77% Informative

ESA 's Einstein Probe captured the X-ray flash from a very elusive celestial pair.

EP J0052 consists of a big, hot star, more than 10 times larger than our Sun , and a small compact white dwarf, with a mass similar to our star.

Discovery opens a new way to explore how massive stars interact and evolve.

ESA 's XMM-Newton mission's follow-up observation in the direction of EP J0052, 18 days after Einstein Probe's first look, did not see the signal anymore.

The duration of the short burst, and the presence of neon and oxygen, hint at a rather heavy type of white dwarf.

Its mass is close to the level, called Chandrasekhar limit, above which the star would continue to implode.

VR Score

86

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91

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66

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formal

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English

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45

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long-living

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