A New Tool for Studying Galactic Structure

Details A New Tool for Studying Galactic Structure A New Tool for Studying Galactic Structure

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..607d&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 607-610

Physics

3

Scientific paper

We here describe a new synthetic catalogue generator, based on a statistical model of the Galaxy, and use it to model the spatial and kinematic distribution of a subset of the Hipparcos Catalogue, specifically OB stars in the plane of the Galaxy. To accurately model this stellar population a method is developed which does not make the usual assumption of uniformity across the field. This population is shown to be best described by a non-axisymmetric spatial distribution. Many of the Galactic parameters are found by a manual adjustment to recover the observed properties of the selected Hipparcos sample.

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