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Detection of a radial velocity gradient in the extended local disc with RAVE

Siebert, A; Famaey, Benoit; Minchev, I; Seabroke, G. M; Binney, J; Burnett, B. C. M.; Freeman, Kenneth; Williams, Mary; Bienayme, O; Bland-Hawthorn, Joss; Campbell, R; Fulbright, J.P.; Steinmetz, Matthias; Wyse, Rosemary F G

Description

Using a sample of 213713 stars from the Radial Velocity Experiment (RAVE) survey, limited to a distance of 2kpc from the Sun and to |z| < 1kpc, we report the detection of a velocity gradient of disc stars in the fourth quadrant, directed radially from the Galactic Centre. In the direction of the Galactic Centre, we apply a simple method independent of stellar proper motions and of Galactic parameters to assess the existence of this gradient in the RAVE data. This velocity gradient corresponds...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/68580
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2010.18037.x

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