A search for type Ia supernova progenitors: the central stars of the planetary nebulae NGC 2392 and NGC 6026

A. Danehkar*, D. J. Frew, O. DeMarco, Q. A. Parker

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    4 Citations (Scopus)

    Abstract

    We use photoionization modeling to assess the binary nature of the central stars of NGC 2392 and NGC 6026. If they are close binaries, they are potential Type Ia supernovae (SNe Ia) progenitors if the total mass exceeds the Chandrasekhar limit. We show that the nucleus of NGC 2392 likely has a hot, massive (≃1 M) white dwarf companion, and a total mass of ~1.6 M, making it an especially interesting system. The binary mass in NGC 6026 is less, ~1.1 M. Even though its orbital period is short, it is not considered to be an SNe Ia progenitor.

    Original languageEnglish
    Title of host publicationBinary Paths to Type Ia Supernovae Explosions
    EditorsRosanne Di Stefano, Marina Orio, Maxwell Moe
    Place of PublicationCambridge
    PublisherCambridge University Press (CUP)
    Pages221-222
    Number of pages2
    Volume7
    EditionS281
    ISBN (Print)9781107019812
    DOIs
    Publication statusPublished - Jul 2011

    Publication series

    NameProceedings of the International Astronomical Union
    NumberS281
    Volume7
    ISSN (Print)17439213
    ISSN (Electronic)17439221

    Keywords

    • planetary nebulae: individual (NGC 2392 & NGC 6026)
    • supernovae: general

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