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

Preprint

6 October 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 reassess the importance of hydrogen in single WN stars regarding the influence of metallicity and rotation on the formation of massive stars.

Keywords

HYDROGEN IN SINGLE
WOLF RAYET STAR
HYDROGEN RICH
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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