A faint, dust-enshrouded carbon star at high galactic latitude

Details A faint, dust-enshrouded carbon star at high galactic latitude A faint, dust-enshrouded carbon star at high galactic latitude

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97..866c&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, March 1989, p. 866-872.

Astronomy and Astrophysics

Astronomy

15

Carbon Stars, Faint Objects, Sky Surveys (Astronomy), Stellar Spectrophotometry, Astronomical Catalogs, Infrared Astronomy Satellite, Spectral Energy Distribution, Stellar Color, Stellar Envelopes, Stellar Luminosity

Scientific paper

During the initial phase of a program to search for substellar candidates at high galactic in the IRAS Serendipitous Survey Catalog, one source, SSC 08546+1732, was found to have no optical couterpart on the Palomar Observatory Sky Survey plates. Ground-based positional, photometric, and spectroscopic observations have identified this source as a heavily dust-enshrouded carbon star, similar to those found in the Galactic plane. The high latitude and relative faintness of this source imply that it lies at a distance of 20-50 kpc, and is 10-30 kpc out of the plane of the Galaxy. SSC 08546+1732 and one other distant obscured carbon star found in the IRAS Point Source Catalog (Low 1987; Beichman et al. 1989) represent the first examples of such objects found in the Galactic halo. These stars may either have evolved from Population I precursors ejected from the disk, or they may be the first obscured Population II halo carbon stars to be observed. A survey for other distant enshrouded carbon stars in the IRAS Faint Source Cattalog should help to elucidate the nature of this new population.

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