Kinematic Properties of Young Subsystems and the Rotation Curve of our Galaxy

Details Kinematic Properties of Young Subsystems and the Rotation Curve of our Galaxy Kinematic Properties of Young Subsystems and the Rotation Curve of our Galaxy

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cokon.103..167z&link_type=abstract

Communications of the Konkoly Observatory, Hungary Proceedings of the conference: 'The interaction of stars with their environme

Computer Science

Scientific paper

The maximum-likelihood analysis is applied to space velocities of 113 classical Cepheids with periods longer than 9 days, 89 young open clusters with ages less than 40 Myr, 102 blue supergiants, 200 HII-regions and 150 HI radial velocities. We used the distance scales of objects balanced by the statistical-parallax technique. The kinematic properties of young subsystems have been derived (solar motion components, velocity-ellipsoid axes). The rotation curve is constructed from radial velocities of all objects on the galactocentric distances 2-14 kpc for short (R0=7.5kpc) and long (R0=8.5kpc) distance scale.

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