The Galactic Warp in HIPPARCOS

Details The Galactic Warp in HIPPARCOS The Galactic Warp in HIPPARCOS

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997esasp.402..715s&link_type=abstract

Proceedings of the ESA Symposium `Hipparcos - Venice '97', 13-16 May, Venice, Italy, ESA SP-402 (July 1997), p. 715-720

Computer Science

2

Scientific paper

We examine the positions and proper motions of a sample of OB Hipparcos stars for evidence of the warp in our galaxy. This examination is carried out by a comparison of the observations with a sophisticated simulation of the galaxy discussed in Drimmel et al. (1997). The spatial distribution of these early type stars in the galaxy confirms a warped structure. The kinematic signature is, however, not consistent with a long lived warp as defined by the spatial distribution.

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