Rotational stellar structures based on the Lagrangian variational principle

Nobutoshi Yasutake*, Kotaro Fujisawa, Shoichi Yamada

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


A new method for multi-dimensional stellar structures is proposed in this study. As for stellar evolution calculations, the Heney method is the defacto standard now, but basically assumed to be spherical symmetric. It is one of the difficulties for deformed stellar-evolution calculations to trace the potentially complex movements of each fluid element. On the other hand, our new method is very suitable to follow such movements, since it is based on the Lagrange coordinate. This scheme is also based on the variational principle, which is adopted to the studies for the pasta structures inside of neutron stars. Our scheme could be a major break through for evolution calculations of any types of deformed stars: proto-planets, proto-stars, and proto-neutron stars, etc.

Original languageEnglish
Article number012006
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 2017 Jun 13
Event5th International Workshop Compact Stars in the QCD Phase Diagram, CSQCD 2016 - L'Aquila, Italy
Duration: 2016 May 232016 May 27

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Rotational stellar structures based on the Lagrangian variational principle'. Together they form a unique fingerprint.

Cite this