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The First Detection of Wolf-Rayet Stars in M31

Published online by Cambridge University Press:  14 August 2015

Michael M. Shara  and
Anthony F. J. Moffat
Michael M. Shara
Affiliation:
Arizona State University
Anthony F. J. Moffat
Affiliation:
Universite de Montreal

Abstract

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A search to continuum magnitude B ∼ 21.5 (MB∼ −3) using a narrow band filter at λ4670å and a wide B-band filter has revealed 21 Wolf-Rayet star candidates in about half the giant Sb galaxy M31. Some weak-line WR stars, particularly WN subtypes, may have escaped detection. These numbers are compatible with the total number of luminous (i.e. massive) stars in M31. Eighteen of twenty confirmed candidate stars in M31 lie in the direction of 0B associations in the ring of prominent star formation 5–16 kpc from the center.

Type
SESSION 7 — WOLF-RAYET STARS IN EXTERNAL GALAXIES
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 531 - 537
Copyright
Copyright © Reidel 1982 

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