SIMBAD references

2016ApJ...816L...2V - Astrophys. J., 816, L2 (2016/January-1)

LAMOST 1: a disrupted satellite in the constellation Draco.

VICKERS J.J., SMITH M.C., HOU Y., WANG Y. and ZHANG Y.

Abstract (from CDS):

Using Large Sky Area Multi-object Fibre Spectroscopic Telescope spectroscopic data, we find a strong signal of a comoving group of stars in the constellation of Draco. The group, observed near the apocenter of its orbit, is 2.6 kpc from the Sun with a metallicity of -0.64 dex. The system is observed as a streaming population of unknown provenance with mass of about 2.1 ± 0.4. 104M☉ and brightness of about MV ∼ -3.6. Its high metallicity, diffuse physical structure, and eccentric orbit may indicate that the progenitor satellite was a globular cluster rather than a dwarf galaxy or an open cluster.

Abstract Copyright: ∼

Journal keyword(s): galaxies: star clusters: general - Galaxy: kinematics and dynamics - galaxy: structure - techniques: spectroscopic

Simbad objects: 4

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