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A determination of the low mass end of the main sequence and the hydrogen burning limit


Image credit: P. Marenfeld & NOAO/AURA/NSF. The ordinate is the stellar radius.

In research accepted for publication in the Astronomical Journal, the RECONS (

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Astronomy

Press release: Planet-like object may have spent its youth as hot as a star

WISE J030449.03-270508.3 belongs to a class of cold, extremely low mass objects, known as Y dwarfs. Only about twenty of those are known, and this one shows a peculiar spectrum suggesting that it may be metal-poor and/or older than previously identified Y0 dwarfs. 55 more words

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