Three‐dimensional Numerical Experimentation on the Core Helium Flash of Low‐Mass Red Giants | Zendy

David S. P. Dearborn | Zendy; John C. Lattanzio | Zendy; P. P. Eggleton | Zendy

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Three‐dimensional Numerical Experimentation on the Core Helium Flash of Low‐Mass Red Giants

Author(s) -

David S. P. Dearborn,

John C. Lattanzio,

P. P. Eggleton

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/499263

Subject(s) - physics , helium , red giant , astrophysics , flash (photography) , core (optical fiber) , transient (computer programming) , flash point , relaxation (psychology) , astronomy , atomic physics , thermodynamics , stars , optics , psychology , social psychology , computer science , operating system

We model the core helium flash in a low-mass red giant using Djehuty, a fullythree-dimensional (3D) code. The 3D structures were generated from convergedmodels obtained during the 1D evolutionary calculation of a 1$\Msun$ star.Independently of which starting point we adopted, we found that after sometransient relaxation the 3D model settled down with a briskly convectingHe-burning shell that was not very different from what the 1D model predicted.Comment: 32 pages, 13 figures, accepted by ApJ. Figures reduced from high-res eps to low-res gif for rapid download. Contact Lattanzio for a copy of the higher res images (included, inplace, in the manuscript

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