Stellar population and galactic evolution: a photometric and astrometric sample survey.

Details Stellar population and galactic evolution: a photometric and astrometric sample survey. Stellar population and galactic evolution: a photometric and astrometric sample survey.

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993wfinw...3...15r&link_type=abstract

IAU Working Group on Wide-Field Imaging, Newsl., No. 3, p. 15 - 17

Astronomy and Astrophysics

Astronomy

Galaxy: Stellar Populations, Surveys: Astrometry, Surveys: Photometry

Scientific paper

This synthetic approach and the multivariate sample survey plan have given until now a number of substantial results concerning galactic structure and stellar evolution: determination of the scale length of the old stellar disc and detection of the edge of the galactic disc; existence of the thick disc population and constraints on its circular velocity; constraints on the velocity dispersion ratios; constraints on the kinematics of old populations in the direction of the north galactic pole.

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