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Two White Dwarfs with Oxygen-Rich Atmospheres
Open accessAbstract
Stars Going Quietly or with a Bang: Stars with masses seven to ten times the mass of the Sun, which can burn carbon in their cores at their end of their lives, may end up as oxygen-neon core white dwarfs or explode as core-collapse supernovae. The defining line between these two end products of stellar evolution is not well understood. Gänsicke et al. (p. 188 ; published online 12 November) identified two white dwarfs whose photospheric oxygen-to-carbon abundance ratio exceeds unity. Their low carbon abundance and their large quantity of oxygen imply that they are oxygen-neon white dwarfs that lost their hydrogen envelopes. As such, they may have evolved from stars at the borderline between stars that explode as supernova and stars that form white dwarfs.
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“The existence of massive white dwarfs (G¨ ansicke et al. 2010), with masses above the C-O core limit of ≈ 1 . 1 M ⊙ lends some support to the scenario that at least some fraction evade exploding as supernovae.”
From The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars (2014) · cites this paper as Gänsicke et al. 2010
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Cited by
Sorted by citations
The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars
Karakas, A. I., & Lattanzio, J. C. (2014) · Publications of the Astronomical Society of Australia · doi:10.1017/pasa.2014.21 · Cited by 735
“The existence of massive white dwarfs (Gänsicke et al. 2010), with masses above the C-O core limit of ≈ 1.1M⊙ lends some support to the scenario that at least some fraction evade exploding as supernovae.”
Background
Metadata
- Authors
- Gänsicke, B. T., Koester, D., Girven, J., Marsh, T. R., & Steeghs, D.
- Affiliations
- University of Warwick (GB)
- Christian-Albrechts-Universität zu Kiel (DE)
- Corresponding author
- Gänsicke, B. T.
- Venue
- Science
- Published
- 2010-01-08
- Volume
- 327
- Issue
- 5962
- Pages
- 188-190
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1977504199
- Cited by
- 59
- References
- 0
- Citations by year
- 2026: 1 · 2023: 2 · 2021: 2 · 2020: 2 · 2019: 5 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 6 · 2014: 6 · 2013: 4 · 2012: 3
- FWCI
- 2.69
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Warwick Research Archive Portal (University of Warwick) (acceptedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Science and Technology Facilities Council (ST/F002599/1, PP/D005914/1)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Gamma-ray bursts and supernovae
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Keywords
- white dwarfs, oxygen-rich atmosphere, oxygen-neon white dwarfs, core-collapse supernovae, carbon burning, stellar evolution
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