Another single hydrogen-rich Wolf-Rayet star in the SMC?

Preprint

10 November 2003

preprint
Published by arXiv in arXiv

Abstract

A 12th Wolf-Rayet star in the SMC has recently been discovered by Massey et al. (2003 - PASP in press). In order to determine its spectral type and a preliminary binary status, we obtained 3 high signal-to-noise spectra separated in time at the ESO-NTT. Compared to other WR stars in the SMC, SMC-WR12 appears to belong to the subgroup of faint, single and hydrogen-rich WN stars. We discuss the evolutionary status of WR12 and show that relatively low mass rotating progenitors can better account for the properties of single hydrogen-rich WN stars in the SMC.

Keywords

SINGLE HYDROGEN RICH
WOLF RAYET STAR
STARS
SMC

All Related Versions

Version 1, 2003-10-06, ArXiv
Version 2, 2003-10-30, ArXiv
Version 3, 2003-11-10, ArXiv
Version 4, 2004-01-13, ArXiv
Published version: Astronomy & Astrophysics, 416 (1), 291.

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