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Classification of Wolf-Rayet stars in NGC 595 in M 33 through high-spatial resolution observations

Royer, Pierre; Lundström, Ingemar LU and Vreux, Jean-Marie (2003) In A Massive Star Odyssey: From Main Sequence to Supernova (Proceedings of IAU Symposium ; 212) 212. p.572-572
Abstract
NGC 595 is, after NGC 604, the second most luminous HII region in theMilky Ways neighbouring spiral galaxy M 33. Its Wolf-Rayet starcontent has mainly been unveiled by two different channels. On the onehand, the stellar population of NGC 595 has been resolved and its WRstars identified through on-line/off-line HeIIlambda4686 observationsrealised with the HST. Nevertheless, due to the limited number offilters used, this did not give any information on the WR spectralsubtypes. On the other hand, spectroscopic observations of NGC 595,realised at optical and ultraviolet wavelengths, have enabled thedetermination of some spectral subtypes, but this time, the lack ofangular resolution did not allow to resolve the whole population.Thanks to our... (More)
NGC 595 is, after NGC 604, the second most luminous HII region in theMilky Ways neighbouring spiral galaxy M 33. Its Wolf-Rayet starcontent has mainly been unveiled by two different channels. On the onehand, the stellar population of NGC 595 has been resolved and its WRstars identified through on-line/off-line HeIIlambda4686 observationsrealised with the HST. Nevertheless, due to the limited number offilters used, this did not give any information on the WR spectralsubtypes. On the other hand, spectroscopic observations of NGC 595,realised at optical and ultraviolet wavelengths, have enabled thedetermination of some spectral subtypes, but this time, the lack ofangular resolution did not allow to resolve the whole population.Thanks to our photometric technique, based on five dedicated narrow-bandfilters, we present here a determination of the spectral subtypes of NGC595 WR stars which for the first time combines high-angular resolutionand high-spectroscopic discrimination capabilities. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
A Massive Star Odyssey: From Main Sequence to Supernova (Proceedings of IAU Symposium ; 212)
editor
van der Hucht, Karel A.; Herrero, Artemio and Esteban, César
volume
212
pages
572 - 572
publisher
Astronomical Society of the Pacific
ISBN
1-58381-133-8
language
English
LU publication?
yes
id
c1cbfbc2-0803-4643-adce-1d34a53601a2 (old id 528233)
date added to LUP
2007-09-25 09:16:23
date last changed
2016-04-16 08:30:42
@misc{c1cbfbc2-0803-4643-adce-1d34a53601a2,
  abstract     = {NGC 595 is, after NGC 604, the second most luminous HII region in theMilky Ways neighbouring spiral galaxy M 33. Its Wolf-Rayet starcontent has mainly been unveiled by two different channels. On the onehand, the stellar population of NGC 595 has been resolved and its WRstars identified through on-line/off-line HeIIlambda4686 observationsrealised with the HST. Nevertheless, due to the limited number offilters used, this did not give any information on the WR spectralsubtypes. On the other hand, spectroscopic observations of NGC 595,realised at optical and ultraviolet wavelengths, have enabled thedetermination of some spectral subtypes, but this time, the lack ofangular resolution did not allow to resolve the whole population.Thanks to our photometric technique, based on five dedicated narrow-bandfilters, we present here a determination of the spectral subtypes of NGC595 WR stars which for the first time combines high-angular resolutionand high-spectroscopic discrimination capabilities.},
  author       = {Royer, Pierre and Lundström, Ingemar and Vreux, Jean-Marie},
  editor       = {van der Hucht, Karel A. and Herrero, Artemio and Esteban, César},
  isbn         = {1-58381-133-8},
  language     = {eng},
  pages        = {572--572},
  publisher    = {ARRAY(0x8115340)},
  series       = {A Massive Star Odyssey: From Main Sequence to Supernova (Proceedings of IAU Symposium ; 212)},
  title        = {Classification of Wolf-Rayet stars in NGC 595 in M 33 through high-spatial resolution observations},
  volume       = {212},
  year         = {2003},
}