Empirical relations for the sensitivities of solar-like oscillations to magnetic perturbations
Empirical relations for the sensitivities of solar-like oscillations to magnetic perturbations
复制标题
类太阳振荡对磁扰动敏感性的经验关系
DOI:
10.1093/mnras/staa1807
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发表时间:
2020
影响因子:
4.8
通讯作者:
Broomhall A
中科院分区:
文献类型:
--
作者:
Broomhall A
Oscillation mode frequencies of stars are typically treated as static for a given stellar model. However, in reality they can be perturbed by time-varying sources such as magnetic fields and flows. We calculate the sensitivities of radial p-mode oscillations of a set of models for masses between 0.7 and 3.0 M⊙from the main sequence to the early asymptotic giant branch. We fit these mode sensitivities with polynomials in fundamental stellar parameters for six stages of stellar evolution. We find that the best-fitting relations differ from those proposed in the literature and change between stages of stellar evolution. Together with a measure of the strength of the perturbation, e.g. of the level of magnetic activity, the presented relations can be used for assessing whether a star’s observed oscillation frequencies are likely to be close to the unperturbed ground state or whether they should be adjusted.
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DOI:
10.3847/1538-4365/aac9b6
发表时间:
2018
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
A. R. G. Santos;T. Campante;T. Campante;W. Chaplin;W. Chaplin;Margarida S. Cunha;M. Lund;M. Lund;R. Kiefer;D. Salabert;D. Salabert;R. A. García;R. A. García;G. R. Davies;G. R. Davies;Y. Elsworth;Y. Elsworth;R. Howe;R. Howe
通讯作者:
R. Howe
影响因子:
3.3
作者:
S. Mathur;D. Salabert;R. García;Tugdual Ceillier
通讯作者:
Tugdual Ceillier
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
M. Roth;R. Howe;R. Komm
通讯作者:
R. Komm
影响因子:
4.9
作者:
Aguirre, Victor Silva;Lund, Mikkel N.;Rendle, Ben
通讯作者:
Rendle, Ben
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
Aso Yusuke;Hirano Naomi;Aikawa Yuri;Machida Masahiro N.;Ohashi Nagayoshi;Saito Masao;Takakuwa Shigehisa;Yen Hsi-Wei;Williams Jonathan P.;Youhei MASADA
通讯作者:
Youhei MASADA