Journals Digest RSS

David S. Aguado et al 2018 ApJL 854 L34

The primitive star SDSS J0023+0307 has an upper limit [Fe/H] < −6.6, making it one of the two most iron-poor stars known. It is further missing the usual carbon enhancement found in other hyper-metal-poor stars.

L. Molnár et al 2018 ApJS 234 37

In the field of view surrounding Uranus, 608 main-belt asteroids were observed with K2. The resulting light curves revealed rotation rates for 90 of these asteroids (86 of which were previously unknown).

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