IRAS 17380 - 3031 - A new dusty late WC-type Wolf-Rayet star

Abstract

view Abstract Citations (25) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS IRAS 17380-3031: A New Dusty Late WC-Type Wolf-Rayet Star Cohen, Martin ; van der Hucht, K. A. ; Williams, P. M. ; The, P. S. Abstract Infrared photometry is presented of IRAS 17380 - 3031 and of IRAS 18405 - 0448, two of the proposed candidates for late WC-type stars suggested by Vok and Cohen (1989). Systematic 12-micron flux-limited surveys of the complete IRAS low-resolution spectrometer (LSR) data base show that late-type WC (WCL) stars with circumstellar dust emission have unique midinfrared spectra, suggesting a novel method for detecting such stars. It is confirmed through optical spectroscopy that IRAS 17380 - 3031, a prime LRS-selected WCL candidate, is a very red WCL star. It is classified as WC8 - 9, with a probable distance of 3 + or - 1 kpc, and a total extinction of about 12.5 mag. The confirmation demonstrates the power of the LRS technique for discovery of dusty WCL stars with IRAS. Publication: The Astrophysical Journal Pub Date: September 1991 DOI: 10.1086/170431 Bibcode: 1991ApJ...378..302C Keywords: Cosmic Dust; Infrared Astronomy Satellite; Infrared Spectra; Late Stars; Wolf-Rayet Stars; Astronomical Photometry; Emission Spectra; Visible Spectrum; Astrophysics; INFRARED: SOURCES; STARS: CIRCUMSTELLAR SHELLS; STARS: INDIVIDUAL ALPHANUMERIC: IRAS 17380-3031; STARS: WOLF-RAYET full text sources ADS | data products SIMBAD (7)