Kim, Dongwon; Jerjen, Helmut
We report the discovery of an ultra-faint stellar system in the constellation of Pegasus. This concentration of stars
was detected by applying our overdensity detection algorithm to the Sloan Digital Sky Survey Data Release 10
and confirmed with deeper photometry from the Dark Energy Camera (DECam) at the 4 m Blanco telescope. The
best-fitting model isochrone indicates that this stellar system, Kim 1, features an old (12 Gyr) and metal-poor
([Fe/H] ∼ −1.7) stellar population at a...[Show more]
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