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Thermohaline mixing...
Thermohaline mixing and the variation of [C/Fe] with magnitude in M3
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- Angelou, George C. (författare)
- Monash University
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- Lattanzio, John C. (författare)
- Monash University
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- Church, Ross P. (författare)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science,Monash University
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visa fler...
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- Stancliffe, Richard J. (författare)
- Monash University
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- Dearborn, David S. (författare)
- Lawrence Livermore National Laboratory
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- Smith, Graeme H. (författare)
- University of California, Santa Cruz
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- Tout, Christopher A. (författare)
- University of Cambridge
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- Smith, Verne V. (författare)
- National Optical Astronomy Observatory
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visa färre...
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(creator_code:org_t)
- 2010
- 2010
- Engelska.
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Ingår i: 11th Symposium on Nuclei in the Cosmos, NIC 2010; Heidelberg; Germany; 19 July 2010 through 23 July 2010.
- Relaterad länk:
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https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- We use observations of M3 to constrain thermohaline mixing. This is done by matching [C/Fe] and [N/Fe] along the RGB of M3. We find our models can explain observations if it is assumed there is a spread of ∼ 0.3 - 0.4 dex in [C/Fe] in the stars in M3 from their birth. We reproduce the full spread in [C/Fe] at the tip of the RGB. Thermohaline mixing can produce a significant change in [N/Fe] as a function of absolute magnitude on the RGB for initially CN-weak stars, but not for initially CN-strong stars, which have so much nitrogen to begin with that any deep mixing does not significantly affect the surface nitrogen composition.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)