Half of Kepler "planet finds" are false positives

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Half of Kepler "planet finds" are false positives

Postby Cralis on Thu 03 Dec 2015 12:06

http://www.forbes.com/sites/startswitha ... positives/

Looks like 52% of Kepler's "planet finds" used for the study turned out to be binary components instead.

On the positive side, however, 3 of them turned out to be brown dwarves...
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Re: Half of Kepler "planet finds" are false positives

Postby LordKron on Thu 03 Dec 2015 12:52

I'm surprised that only 3 were brown dwarfs. If the others are truly eclipsing binary stars, then the secondary if that close in, must be just over the limit, but then we should be able to identify them by spectroscopic analysis.
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Re: Half of Kepler "planet finds" are false positives

Postby Cralis on Thu 03 Dec 2015 16:47

It appears that a spectrographic analysis is exactly how they figured it out
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