The halo of the Large Magellanic Cloud - Kinematics of the CH stars

Details The halo of the Large Magellanic Cloud - Kinematics of the CH stars The halo of the Large Magellanic Cloud - Kinematics of the CH stars

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...373...80c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 373, May 20, 1991, p. 80-83. Research supported by NSF and NSERC.

Astronomy and Astrophysics

Astrophysics

31

Carbon Stars, Halos, Late Stars, Magellanic Clouds, Radial Velocity, Stellar Motions, Milky Way Galaxy, Velocity Distribution, Velocity Measurement

Scientific paper

This paper examines the properties of the LMC halo through the kinematics of its CH stars, which are known to be excellent halo tracers in the Galaxy. Velocities have been measured for 40 CH stars lying in the direction of LMC. These supplement 41 previously determined values. The main result of this investigation is that the distribution of CH-star velocities is asymmetrical, possessing a relatively sharp cutoff at the high-velocity end with an extended low-velocity tail. It is speculated that the asymmetry arises from two discrete groups of CH stars, one associated with the old globular cluster population and a second with the LMC disk.

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