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

5 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
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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