Distant field blue horizontal branch stars - III. Identification of a probable outer halo stream at Galactocentric distance r = 70kpc
We present FOcal Reducer/low dispersion Spectrograph-1 spectra (from the European Southern Observatory's Very Large Telescope) of a sample of 34 faint 20.0 < g* < 21.1 A-type stars selected from the Sloan Digital Sky Survey Early Data Release, with the goal of measuring the velocity dispersion of blue horizontal branch (BHB) stars in the remote Galactic halo, R ∼ 80 kpc. We show that colour selection with 1.08 < u* - g*< 1.40 and -0.2 < g* - r* < -0.04 minimizes contamination of the sample by...[Show more]
|Collections||ANU Research Publications|
|Source:||Monthly Notices of the Royal Astronomical Society|
|01_Clewley_Distant_field_blue_horizontal_2005.pdf||282.91 kB||Adobe PDF||Request a copy|
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