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2009MNRAS.399.1223S - Mon. Not. R. Astron. Soc., 399, 1223-1237 (2009/November-1)
Kinematics of SDSS subdwarfs: structure and substructure of the Milky way halo.
SMITH M.C., EVANS N.W., BELOKUROV V., HEWETT P.C., BRAMICH D.M., GILMORE G., IRWIN M.J., VIDRIH S. and ZUCKER D.B.
Abstract (from CDS):
Using the full phase-space coordinates, we look for signs of kinematic substructure in the stellar halo. We find evidence for four discrete overdensities localized in angular momentum and suggest that they may be possible accretion remnants. The most prominent is the solar neighbourhood stream previously identified by Helmi et al., but the remaining three are new. One of these overdensities is potentially associated with a group of four globular clusters (NGC 5466, NGC 6934, M2 and M13) and raises the possibility that these could have been accreted as part of a much larger progenitor.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): stars: Population II - subdwarfs - Galaxy: halo - Galaxy: kinematics and dynamics - solar neighbourhood
Simbad objects: 42
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