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Evolution of a 1 M(sun) star with a periodically mixed core

Abstract

To solve the neutrino problem, Dilke and Gough have suggested that the vibrational instability of g/sup +/ modes of non radial oscillation may be the cause of recurrent mixing in the sun. Supposing this to be correct, the evolution of the sun is completely different from the standard one. Unmixed solar models are stable when older than 3 x 10/sup 9/ years. It is therefore necessary to check whether in the modified evolution, instabilities still exist at the solar age. They do, provided that the mass fraction of the mixed core is large enough. However, the neutrino flux at its minimum during a thermal pulse occurring at the solar age remains too high. Constraints imposed by ice age records are also discussed.
Authors:
Gabriel, M; Noels, A; Scuflaire, R; Boury, A [1] 
  1. Liege Univ. (Belgium). Inst. d'Astrophysique
Publication Date:
Feb 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-07-258723; EDB-77-015021
Resource Relation:
Journal Name: Astron. Astrophys.; (Germany, Federal Republic of); Journal Volume: 47:1; Other Information: 2 tabs.; with refs
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; SUN; STAR EVOLUTION; BERYLLIUM 7; BORON 8; COSMIC RAY FLUX; HELIUM 3; HYDROGEN; NEUTRINOS; NUCLEOSYNTHESIS; SOLAR PARTICLES; STABILITY; STAR MODELS; ALKALINE EARTH ISOTOPES; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BORON ISOTOPES; CRYOGENIC FLUIDS; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ELEMENTS; EVEN-ODD NUCLEI; FERMIONS; FLUIDS; HELIUM ISOTOPES; ISOTOPES; LEPTONS; LIGHT NUCLEI; MASSLESS PARTICLES; MATHEMATICAL MODELS; NONMETALS; NUCLEI; ODD-ODD NUCLEI; RADIATION FLUX; RADIATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SOLAR RADIATION; STABLE ISOTOPES; STARS; STELLAR RADIATION; 640104* - Astrophysics & Cosmology- Solar Phenomena
OSTI ID:
7332150
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: AAEJA
Submitting Site:
INIS
Size:
Pages: 137-141
Announcement Date:
Oct 01, 1976

Citation Formats

Gabriel, M, Noels, A, Scuflaire, R, and Boury, A. Evolution of a 1 M(sun) star with a periodically mixed core. Germany: N. p., 1976. Web.
Gabriel, M, Noels, A, Scuflaire, R, & Boury, A. Evolution of a 1 M(sun) star with a periodically mixed core. Germany.
Gabriel, M, Noels, A, Scuflaire, R, and Boury, A. 1976. "Evolution of a 1 M(sun) star with a periodically mixed core." Germany.
@misc{etde_7332150,
title = {Evolution of a 1 M(sun) star with a periodically mixed core}
author = {Gabriel, M, Noels, A, Scuflaire, R, and Boury, A}
abstractNote = {To solve the neutrino problem, Dilke and Gough have suggested that the vibrational instability of g/sup +/ modes of non radial oscillation may be the cause of recurrent mixing in the sun. Supposing this to be correct, the evolution of the sun is completely different from the standard one. Unmixed solar models are stable when older than 3 x 10/sup 9/ years. It is therefore necessary to check whether in the modified evolution, instabilities still exist at the solar age. They do, provided that the mass fraction of the mixed core is large enough. However, the neutrino flux at its minimum during a thermal pulse occurring at the solar age remains too high. Constraints imposed by ice age records are also discussed.}
journal = []
volume = {47:1}
journal type = {AC}
place = {Germany}
year = {1976}
month = {Feb}
}