A unique Galactic planetary nebula with a [WN] central star

D. H. Morgan*, Q. A. Parker, Martin Cohen

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    25 Citations (Scopus)

    Abstract

    We report the discovery of the first probable Galactic [WN] central star of a planetary nebula (CSPN). The planetary nebula candidate was found during our systematic scans of the AAO/UKST Hα Survey of the Milky Way. Subsequent confirmatory spectroscopy of the nebula and central star reveals the remarkable nature of this object. The nebular spectrum shows emission lines with large expansion velocities exceeding 150 km s -1, suggesting that perhaps the object is not a conventional planetary nebula. The central star itself is very red and is identified as being of the [WN] class, which makes it unique in the Galaxy. A large body of supplementary observational data supports the hypothesis that this object is indeed a planetary nebula and not a Population I Wolf-Rayet star with a ring nebula.

    Original languageEnglish
    Pages (from-to)719-730
    Number of pages12
    JournalMonthly Notices of the Royal Astronomical Society
    Volume346
    Issue number3
    DOIs
    Publication statusPublished - 11 Dec 2003

    Keywords

    • Planetary nebulae: individual: PHR 16196-4913
    • Stars: individual: PM5
    • Stars: Wolf-Rayet

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