Radial velocity in Draco (Kleyna+, 2002)

Details Radial velocity in Draco (Kleyna+, 2002) Radial velocity in Draco (Kleyna+, 2002)

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat..73300792k&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/330/792. Originally published in: 2002MNRAS.330..792K

Physics

Galaxies: Photometry, Radial Velocities

Scientific paper

We present stellar radial velocity data for the Draco dwarf spheroidal (dSph) galaxy obtained using the AF2/WYFFOS instrument combination on the William Herschel Telescope. Our data set consists of 186 member stars, 159 of which have good quality velocities, extending to a magnitude V~19.5 with a mean velocity precision of ~2km/s. As this survey is based on a high-precision photometric target list, it contains many more Draco members at large radii. For the first time, this allows a robust determination of the radial behaviour of the velocity dispersion in a dSph.
(2 data files).

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