During the initial phase of a program to search for sub -stellar candidates
at high galactic latitudes in the IRAS Serendipitous Survey Catalog, one source,
SSC 08546 +1732, was found to have no optical counterpart 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 to 30 kpc out of the plane of the Galaxy. SSC
08546 +1732, along with one other distant obscured carbon star found in the IRAS
Point Source Catalog (Low 1987; Beichman e1: al. 1988), 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 Catalog should
help to elucidate the nature of this new population.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/623922 |
| Date | 12 1900 |
| Creators | Cutri, R. M., Low, F. J., Kleinmann, S. G., Olszewski, E. W., Willner, S. P., Campbell, B., Gillett, F. C. |
| Contributors | Univ Arizona, Steward Observ |
| Publisher | Steward Observatory, The University of Arizona (Tucson, Arizona) |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Article |
| Source | Steward Observatory Parker Library SO QB 4 .S752 ARCH |
| Rights | Copyright © All Rights Reserved. |
| Relation | Preprints of the Steward Observatory #851, http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1989AJ.....97..866C&db_key=AST&data_type=HTML&format=&high=3ed65e9cd025148 |
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