Sensitivity of the Sound Speed to the Physical

نویسندگان

  • S. Basu
  • G. Berthomieu
  • A. Bonanno
  • S. Brun
  • J. Christensen-Dalsgaard
  • M. Gabriel
  • P. Morel
  • J. Provost
  • S. Turcotte
چکیده

We compare several largely independent calculations of solar models performed by diierent groups. As a reference is used the sound-speed proole extracted from GOLF+LOWL or GOLF+MDI data by S. Basu and J. Christensen-Dalsgaard. First, we show some eeects of the recent physical improvements included in the standard model: opacity calculations and nuclear reaction rates and the role of the solar age on the sound-speed proole. We then present, compare and discuss the results of the diierent models.

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تاریخ انتشار 2007