A Consistent Explanation for [TSUP]12[/TSUP]C/[TSUP]13[/TSUP]C, [TSUP]7[/TSUP]Li, and [TSUP]3[/TSUP]He Anomalies in Red Giant Stars
Open accessAbstract
The observations of carbon isotopic ratios in evolved stars suggest that nonstandard mixing is acting in low-mass stars as they are ascending the red giant branch. We propose a simple consistent mechanism, based on the most recent developments in the description of rotation-induced mixing reported by Zahn in 1992, which simultaneously accounts for the low 12 C/ 13 C ratios in globular cluster and field Population II giants and for the lithium abundances in metal-poor giant stars. It also leads to the destruction of 3 He produced on the main sequence in low-mass stars. This should both naturally account for the recent measurements of 3 He/H in Galactic H II regions and allow for high values of 3 He observed in some planetary nebulae.
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The agreement found at low luminosities is not seen further up the red giant branch.
“But the agreement found at low luminosities is not seen further up the RGB (e.g., Charbonnel 1995)”
From The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars (2014) · cites this paper as Charbonnel 1995
Changing the yield of 3He in low-mass stars to almost zero would slow the build-up of 3He over the Galaxy's lifetime.
“It has long been recognised that one way to solve this problem is to change the yield of 3 He in low-mass stars to almost zero (Charbonnel 1995). In this case the build up of 3 He over the lifetime of the Galaxy will be much slower.”
From The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars (2014) · cites this paper as Charbonnel 1995
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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 · see citing works
“It has long been recognised that one way to solve this problem is to change the yield of 3He in low-mass stars to almost zero (Charbonnel 1995).”
BackgroundInfluentialBig-bang nucleosynthesis enters the precision era
Schramm, D. N., & Turner, M. S. (1998) · Reviews of Modern Physics · doi:10.1103/revmodphys.70.303 · Cited by 353 · see citing works
C and N Abundances in Stars at the Base of the Red Giant Branch in M15
Cohen, J. G., Briley, M. M., & Stetson, P. B. (2005) · The Astronomical Journal · doi:10.1086/431974 · Cited by 82 · see citing works
- Authors
- Charbonnel, C.
- Affiliations
- Centre National de la Recherche Scientifique (FR)
- Corresponding author
- Charbonnel, C.
- ORCID
- Charbonnel, C.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 1995-11-01
- Volume
- 453
- Issue
- 1
- ISSN
- 0004-637X (ISSN-L)
- OpenAlex
- W1680174945
- Cited by
- 306
- References
- 0
- Citations by year
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- FWCI
- 13.36
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- The Astrophysical Journal (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
- Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
- Keywords
- red giants, carbon isotope ratio, 12C/13C, lithium abundance, helium-3, rotation-induced mixing, globular clusters, planetary nebulae, Galactic H II regions, stellar evolution, low-mass stars
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