A very distant high-latitude carbon star

Details A very distant high-latitude carbon star A very distant high-latitude carbon star

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..274m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, Feb. 1984, p. 274-276.

Astronomy and Astrophysics

Astronomy

22

Astronomical Photography, Carbon Stars, Distance, Stellar Luminosity, Stellar Spectrophotometry, Astronomical Coordinates, Dwarf Stars, Galactic Nuclei, Giant Stars, Magellanic Clouds, Milky Way Galaxy, Radial Velocity, Stellar Motions

Scientific paper

A very faint (V = 18, B - V = 1.9) carbon star has been serendipitously discovered at high galactic latitude, and the spectroscopy, photometry, and direct photographic observations of this curious object are presented. A moderately stringent upper limit on the proper motion of the star makes it improbable that the object is a dwarf; although the measured heliocentric radial velocity is only +75 + or - 40 km/s, this is not unexpectedly small for a halo star at these galactic coordinates. The implied galactocentric distance of the system, if it is in fact a giant, is of order 120 kpc, one of the most distant halo objects yet found. The location and the radial velocity of the star place it at least approximately in the orbit of, although not in angular proximity to, the Magellanic Clouds. This raises the possibility that the object may be ejected debris from the Clouds.

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