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- W2271334626 abstract "Analysis of data from the Kepler space observatory and ground-based telescopes has led to the detection of one, and possibly several, minor planets that are in a state of disintegration in orbit around a white dwarf star. See Letter p.546 The atmospheres of white dwarfs often contain elements heavier than helium, even though such elements would be expected to settle into the stars' interiors once they have exhausted their nuclear fuel. Heavy-element abundance ratios in such atmospheres are similar to those of rocky bodies in the Solar System, suggesting that the 'extra' elements may derive from planetary material. This paper presents observations of one or more disintegrating planetesimals in transit across the white dwarf WD 1145+017, with periods ranging from 4.5 to 4.9 hours. The strongest transit signals, occurring every 4.5 hours, are indicative of a small object with a cometary tail of dusty effluent material. This system provides further evidence that the pollution of white dwarfs by heavy elements might originate from disrupted rocky bodies such as asteroids and minor planets." @default.
- W2271334626 created "2016-06-24" @default.
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- W2271334626 date "2015-10-01" @default.
- W2271334626 modified "2023-09-23" @default.
- W2271334626 title "A glimpse of Earth's fate" @default.
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- W2271334626 doi "https://doi.org/10.1038/526515b" @default.
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