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Variational approach for rotating-stellar evolution in Lagrange scheme

Published online by Cambridge University Press:  23 January 2015

Nobutoshi Yasutake  and
Shoichi Yamada
Nobutoshi Yasutake
Affiliation:
Physics Department, Chiba Institute of Technology, Shibazono 2-1-1, Narashino, Chiba, 275-0023, Japan email: [email protected]
Shoichi Yamada
Affiliation:
Advanced Research Institute for Science and Engineering, Waseda University, Okubo 3-4-1, Shinjuku, Tokyo, 169-8555, Japan
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Abstract

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We have developed an entirely new formulation to obtain self-gravitating, axisymmetric configurations in permanent rotation. It is based on the Lagrangian variational principle and, as a consequence, will allow us to apply it to stellar evolution calculations rather easily. We adopt a Monte Carlo technique, which is analogous to those employed in other fields, e.g. nuclear physics, in minimizing the energy functional. We also present the analogies between the study on rotating stellar configurations and the one on deformed nuclei. Possible applications are not limited to main sequence stars but will be extended to e.g. compact stars, proto-stars and planets. We believe that our formulation will be a major break-through then.

Keywords

stars: rotation— stars: evolution — stars: protostars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Issue S307: New windows on massive stars: asteroseismology, interferometry, and spectropolarimetry , June 2014 , pp. 150 - 151
Copyright
Copyright © International Astronomical Union 2015 

References

Hachisu, I. 1986, ApJS 61, 479CrossRefGoogle Scholar
Henyey, L. G., Forbes, J. E., & Gould, N. L. 1964, ApJ 139, 306CrossRefGoogle Scholar
Maeder, A. & Meynet, G. 2000, ARA&A 38, 143Google Scholar
Yasutake, N., Noda, T., Sotani, H., Maruyama, T., & Tatsumi, T. 2013, Recent Advances in Quarks Research, Chapt. Thermodynamical description of hadron-quark phase transition and its implications on compact-star phenomena, Nova PublishersGoogle Scholar
Woosley, S. E., Heger, A., & Weaver, T. A. 2002, Reviews of Modern Physics 74, 1015CrossRefGoogle Scholar