The velocity dispersion of carbon stars at the north Galactic pole

Details The velocity dispersion of carbon stars at the north Galactic pole The velocity dispersion of carbon stars at the north Galactic pole

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pasp...97..130m&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 97, Feb. 1985, p. 130-137.

Astronomy and Astrophysics

Astronomy

28

Carbon Stars, Dwarf Galaxies, Galactic Structure, Radial Velocity, Stellar Spectra, Astronomical Photometry, Globular Clusters, Kinematics, Velocity Distribution

Scientific paper

Nine carbon stars at high galactic latitude, including the first eight carbon stars from the Case survey have a corrected line-of-sight velocity dispersion of 101 km s-1. If they are similar to the carbon stars found in dwarf spheroidal galaxies, they range in distance from 5 to 50 kpc. Their velocity dispersion is higher than the prediction of the cylindrical model for the galactic velocity ellipsoid by Ratnatunga and Freeman, but equal to that of galactic globular clusters. One of these stars may have an age of less than six billion years.

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