SIMBAD references

2007AJ....134..778M - Astron. J., 134, 778-786 (2007/August-0)

Mapping the local galactic halo. I. Optical photometry of cool subdwarf candidates.


Abstract (from CDS):

Optical (BVRI) photometric measurements of a sample of 564 candidate cool subdwarfs in the nearby halo are presented. The stars generally span the color range 0.4<(B-V)<1.8; hence, the sample is composed of early F- through early M-type stars on the subdwarf sequence. The sample is selected from the revised NLTT catalog of Gould and Salim and Salim and Gould via a reduced proper motion diagram. The photometry is precise and accurate; in particular, for stars with 9<V<13.5 the photometry is accurate to 0.013, 0.015, 0.012, and 0.013 mag in V, B-V, V-R, and V-I, respectively. For stars with 13.5<V<16 the photometry is accurate to 0.022, 0.018, 0.013, and 0.018 mag in the same bands.

Abstract Copyright:

Journal keyword(s): Galaxy: Halo - Galaxy: Solar Neighborhood - Stars: Late-Type - Stars: Subdwarfs

VizieR on-line data: <Available at CDS (J/AJ/134/778): table1.dat>

Simbad objects: 566

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