Two ultra-faint milky way stellar systems discovered in early data from the DECam local volume exploration survey

S Mau, W Cerny, AB Pace, Y Choi… - The Astrophysical …, 2020 - iopscience.iop.org
S Mau, W Cerny, AB Pace, Y Choi, A Drlica-Wagner, L Santana-Silva, AH Riley, D Erkal
The Astrophysical Journal, 2020iopscience.iop.org
We report the discovery of two ultra-faint stellar systems found in early data from the DECam
Local Volume Exploration survey (DELVE). The first system, Centaurus I (DELVE J1238–
4054), is identified as a resolved overdensity of old and metal-poor stars with a heliocentric
distance of ${\text {}}{D} _ {\odot}={116.3} _ {-0.6}^{+ 0.6}\,\mathrm {kpc} $
Abstract
We report the discovery of two ultra-faint stellar systems found in early data from the DECam Local Volume Exploration survey (DELVE). The first system, Centaurus I (DELVE J1238–4054), is identified as a resolved overdensity of old and metal-poor stars with a heliocentric distance of
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