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Cited by 69Stellar, planetary, and galactic studiesAstrophysics and Star Formation StudiesAstro and Planetary Science

The DOI matches its Crossref record; 47 of the 48 references it cites were found in a registry or an index.

ON THE NEED FOR DEEP-MIXING IN ASYMPTOTIC GIANT BRANCH STARS OF LOW MASS

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Busso, M., Palmerini, S., Maiorca, E., Cristallo, S., Straniero, O., Abia, C., Gallino, R., Cognata, M. La·2010·The Astrophysical Journal
DOI 10.1088/2041-8205/717/1/l47
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Abstract

The photospheres of low-mass red giants show CNO isotopic abundances that are not satisfactorily accounted for by canonical stellar models. The same is true for the measurements of these isotopes and of the 26 Al/ 27 Al ratio in presolar grains of circumstellar origin. Non-convective mixing, occurring during both red giant branch (RGB) and asymptotic giant branch (AGB) stages, is the explanation commonly invoked to account for the above evidence. Recently, the need for such mixing phenomena on the AGB was questioned, and chemical anomalies usually attributed to them were suggested to be formed in earlier phases. We have therefore re-calculated extra-mixing effects in low-mass stars for both the RGB and AGB stages, in order to verify the above claims. Our results contradict them; we actually confirm that slow transport below the convective envelope occurs also on the AGB. This is required primarily by the oxygen isotopic mix and the 26 Al content of presolar oxide grains. Other pieces of evidence exist, in particular from the isotopic ratios of carbon stars of type N, or C(N), in the Galaxy and in the LMC, as well as of SiC grains of AGB origin. We further show that, when extra-mixing occurs in the RGB phases of Population I stars above about 1.2 M ☉ , this consumes 3 He in the envelope, probably preventing the occurrence of thermohaline diffusion on the AGB. Therefore, we argue that other extra-mixing mechanisms should be active in those final evolutionary phases.

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Crossref · 10.1088/2041-8205/717/1/l47

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47 of 47 references verified0 citation errors · 0 not checkable

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  • The evidence for deep mixing on the AGB comes mainly from O and Al isotope ratios measured in pre-solar oxide grains, which support the existence of extra mixing in low-mass (M ≲ 1.3 M⊙) AGB stars.

    “The evidence for deep mixing on the AGB comes mainly from O and Al isotope ratios measured in pre-solar oxide grains, which support the existence of such extra mixing in low-mass ( M ≲ 1 . 3 M ⊙ ) AGB stars (Busso et al. 2010; Palmerini et al. 2009, 2011).”

    From The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars (2014) · cites this paper as Busso et al. 2010

Citations

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1 of the 48 references couldn’t be matched to a known paper.

Research works printed but not linked: 9

  1. Abia, 1993, A&A, 272, 455
  2. Cantiello, 2008, The Art of Modeling Stars in the 21st Century, 103
  3. Charbonnel, 2000, A&A, 359, 563
  4. Charbonnel, 1998, A&A, 332, 204
  5. Charbonnel, 1998, A&A, 336, 915
  6. Cottrell, 1986, A&A, 161, 314
  7. Gratton, 2000, A&A, 354, 169
  8. Kahane, 1992, A&A, 256, 235
  9. Zinner, 2005, Treatise of Geochemistry. I. Meteorites, Comets, and Planets, 17

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Metadata

Authors
Busso, M., Palmerini, S., Maiorca, E., Cristallo, S., Straniero, O., Abia, C., Gallino, R., & Cognata, M. L.
Affiliations
  • University of Perugia (IT)
  • Universidad de Granada (ES)
  • Istituto Nazionale di Fisica Nucleare (IT)
Corresponding author
Busso, M.
ORCID
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2010-06-15
Volume
717
Issue
1
Pages
L47-L51
ISSN
  • 2041-8205 (ISSN-L)
  • 2041-8213
DOI
10.1088/2041-8205/717/1/l47
OpenAlex
W2001610210
Cited by
69
References
48
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 10 · 2020: 1 · 2019: 2 · 2018: 4 · 2017: 4 · 2016: 11 · 2015: 1 · 2014: 5 · 2013: 6 · 2012: 7
FWCI
4.65
Type
journal article
Language
en
Open access
Locations
  • The Astrophysical Journal Letters (publishedVersion)
  • arXiv (Cornell University) (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 › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
Keywords
asymptotic giant branch stars, extra mixing, 26Al/27Al ratio, presolar grains, circumstellar grains, carbon stars, SiC grains, helium consumption, stellar evolution

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