Angular momentum transport and element mixing in the stellar interior. I. Application to the rotating Sun
Angular momentum transport and element mixing in the stellar interior. I. Application to the rotating Sun
复制标题
恒星内部的角动量传输和元素混合。
DOI:
10.1051/0004-6361:20053577
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发表时间:
2006-04
影响因子:
6.5
通讯作者:
中科院分区:
文献类型:
--
作者:
Aims. The purpose of this work was to obtain diffusion coefficient for the magnetic angular momentum transport and material transport in a rotating solar model. Methods. We assumed that the transport of both angular momentum and chemical elements caused by magnetic fields could be treated as a diffusion process. Results. The diffusion coefficient depends on the stellar radius, angular velocity, and the configuration of magnetic fields. By using of this coefficient, it is found that our model becomes more consistent with the helioseismic results of total angular momentum, angular momentum density, and the rotation rate in a radiative region than the one without magnetic fields. Not only can the magnetic fields redistribute angular momentum efficiently, but they can also strengthen the coupling between the radiative and convective zones. As a result, the sharp gradient of the rotation rate is reduced at the bottom of the convective zone. The thickness of the layer of sharp radial change in the rotation rate is about 0.036 R-circle dot in our model. Furthermore, the difference of the sound-speed square between the seismic Sun and the model is improved by mixing the material that is associated with angular momentum transport.
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影响因子:
4.9
作者:
Charbonneau, P;Christensen-Dalsgaard, J;Tomczyk, S
通讯作者:
Tomczyk, S
DOI:
10.1007/978-94-009-3903-5
发表时间:
1987
期刊:
--
影响因子:
--
作者:
B. Durney;S. Sofia
通讯作者:
B. Durney;S. Sofia
DOI:
10.1086/310253
发表时间:
1996-09
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
A. Kosovichev
通讯作者:
A. Kosovichev
影响因子:
6.5
作者:
J. Yang;Yingrui Li;H. Y. Xu
通讯作者:
J. Yang;Yingrui Li;H. Y. Xu
DOI:
10.1086/175408
发表时间:
1994-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
B. Chaboyer;P. Demarque;M. Pinsonneault
通讯作者:
B. Chaboyer;P. Demarque;M. Pinsonneault