Tracking solar gravity modes:: The dynamics of the solar core

被引:200
作者
Garcia, Rafael A. [1 ]
Turck-Chieze, Sylvaine
Jimenez-Reyes, Sebastian J.
Ballot, Jerome
Palle, Pere L.
Eff-Darwich, Antonio
Mathur, Savita
Provost, Janine
机构
[1] CEA Saclay, DSM, DAPNIA, Serv Astrophys, F-91191 Gif Sur Yvette, France
[2] Univ Paris 07, CNRS,UMR 7158, CEA Saclay, AIM,Unite Mixte Rech, F-91191 Gif Sur Yvette, France
[3] IAC, Tenerife 38205, Spain
[4] Max Planck Inst Astrophys, D-85741 Garching, Germany
[5] Univ La Laguna, Dept Edafol & Geol, Tenerife, Spain
[6] Observ Cote Azur, CNRS, UMR 6202, Dept Cassiopee, F-06304 Nice 4, France
关键词
D O I
10.1126/science.1140598
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Solar gravity modes have been actively sought because they directly probe the solar core ( below 0.2 solar radius), but they have not been conclusively detected in the Sun because of their small surface amplitudes. Using data from the Global Oscillation at Low Frequency instrument, we detected a periodic structure in agreement with the period separation predicted by the theory for gravity dipole modes. When studied in relation to simulations including the best physics of the Sun determined through the acoustic modes, such a structure favors a faster rotation rate in the core than in the rest of the radiative zone.
引用
收藏
页码:1591 / 1593
页数:3
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