publication . Article . 1991

The nature of the nebula associated with the luminous blue variable star WRA 751

Hutsemekers, Damien; van Drom, E.;
Open Access English
  • Published: 01 Nov 1991
  • Country: Belgium
Narrow-band filter imagery as well as medium to high resolution spectroscopy of the nebula surrounding the luminous blue variable (LBV) star WRA 751 are presented. The nebula appears as a slowly expanding H II region of low excitation characterized by a significant N/O overabundance which may be due to the presence in the nebula of nuclear processed material ejected by the star. With the recent discovery of a nebula around HR Car, all but one known galactic LBVs are now shown to be associated with a nebula. These nebula have rather similar physical characteristics, one of the most important being that all of them apparently contain processed material. Peer revie...
arXiv: Astrophysics::Solar and Stellar AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics::Cosmology and Extragalactic Astrophysics
free text keywords: BLUE STARS, H II REGIONS, NEBULAE, STELLAR LUMINOSITY, VARIABLE STARS, FORBIDDEN TRANSITIONS, H ALPHA LINE, NITROGEN IONS, OXYGEN SPECTRA, STELLAR MASS EJECTION, SUPERGIANT STARS, : Space science, astronomy & astrophysics [Physical, chemical, mathematical & earth Sciences], : Aérospatiale, astronomie & astrophysique [Physique, chimie, mathématiques & sciences de la terre]
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