Further Detections of OH Masers in Carbon Stars with Silicate Features.
Szymczak M., Szczerba R., Chen P.S.
2001, in Proceedings of the conference "Post-AGB objects as a phase
of stellar evolution", eds. R. Szczerba & S.K. Gorny, ASSL 265,
Kluwer Academic Publishers, Boston/Dordrecht/London, p.439
Abstract:
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A sample of J--type carbon stars was searched for OH maser emission. The
new detection of three OH lines towards two silicate carbon stars is reported.
In V778 Cyg, previously known as the main-lines (1665 and 1667 MHz) maser
source, the satellite 1612 MHz emission was discovered while in NSV 2814
the main OH lines were detected. The presence of OH maser lines confirms
the former suggestion that oxygen-rich material is located in
the vicinity (~10^{15-16} cm) of silicate carbon stars.
Gzipped PostScript version of this paper is available:
OH_SiCS.ps.gz
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