Magnetar oscillations in the presence of a crust

Magnetar oscillations in the presence of a crust
复制标题

有地壳时的磁星振荡

DOI:
--
复制
发表时间:
2010
期刊:
影响因子:
--
通讯作者:
K. Kokkotas
K. Kokkotas
中科院分区:
--
文献类型:
--
作者:
A. Colaiuda;K. Kokkotas

文献摘要

参考文献

被引文献

相似文献

我们研究了具有强磁场(磁星)的中子星的轴对称扰动,考虑了流体核心与固体地壳的耦合振荡。我们恢复主要基于地壳和地核连续体的离散振荡。我们还确认了两个连续连续体之间的间隙中存在“离散 Alfv en 模式”(参见 van Hoven & Levin (2010)),此外,我们还可以在连续体内部解决其中的一些问题。我们的结果可以解释 SGR 1806-20 和 SGR 1900+14 中观察到的较低和较高的准周期振荡(QPO),并对质量、半径施加限制和两个磁星的地壳厚度。
We study axisymmetric perturbations of neutron star endowed with a strong magnetic eld (magnetars), considering the coupled oscillations of the uid core with the solid crust. We recover discrete oscillations based mainly in the crust and a continuum in the core. We also conrm the presence of \discrete Alfv en modes" in the gap between two contiguous continua (see van Hoven & Levin (2010)) and, in addition, we can resolve some of them also inside the continua. Our results can explain both the lower and the higher observed quasi periodical oscillations (QPOs) in SGR 1806-20 and SGR 1900+14 and put constrains on the mass, radius and crust thickness of the two magnetars.
DOI: 10.1051/0004-6361/201015273
发表时间: 2010-12
影响因子: 6.5
作者:
V. Hambaryan;R. Neuhäuser;K. Kokkotas
通讯作者: V. Hambaryan;R. Neuhäuser;K. Kokkotas