Kinematics of carbon stars in the Large Magellanic Cloud.
Abstract
Published radial velocities of H II regions, luminous earlyand late-type stars, and planetary nebulae are consistent with a rotation law for the Large Magellanic Cloud V is proportional to R for R less than 5.5 deg. New radial velocities for some of the carbon stars in the WORC Catalogue extend the determination of rotation velocities to R about 7 deg. These observations are consistent with V proportional to R for R less than 5.5 deg, with a rapid decrease of V for greater distances. If these results are interpreted as indicating solid-body rotation of a finite disc, and if a true distance modulus of 18.6 is assumed for the LMC, the mass of the LMC is found to be about 2.6 x 10 to the 10th solar masses.
- Publication:
-
Cool Stars with Excesses of Heavy Elements
- Pub Date:
- 1985
- DOI:
- 10.1007/978-94-009-5325-3_20
- Bibcode:
- 1985ASSL..114..167R
- Keywords:
-
- Carbon Stars;
- Magellanic Clouds;
- Stellar Motions;
- Angular Velocity;
- H Ii Regions;
- Kinematics;
- Radial Velocity;
- Astrophysics