arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.0506astro-ph.SR
收藏

关于太阳能核心的新见解

New insights on the solar core

R. A. Garcia, D. Salabert, J. Ballot, A. Eff-Darwich, R. Garrido, A. Jimenez, S. Mathis, S. Mathur, A. Moya, P. L. Palle, C. Regulo, K. Sato, J. C. Suarez, S. Turck-Chieze

摘要:

自从探测到太阳中偶极重力模式的渐近性质以来,寻找个别重力模式的探索一直在继续。对连续14年的GOLF/SoHO观测数据进行了广泛和深入的分析,揭示了一种峰值模式的存在,这种模式可以被解释为频率范围在60到140微赫兹之间的单独偶极重力模式,其振幅与最新的理论预测相符。通过崩溃的功率谱,我们已经得到了一个相当恒定的分裂这些模式相比,没有g模式的预期区域。此外,同样的技术应用于同步VIRGO/SoHO数据揭示了两种仪器的功率谱之间的一些共同信号。因此,我们能够识别和表征各个g模式,其中心频率,振幅和分裂允许做太阳能核心内的旋转剖面的地震反演。这些结果为太阳深核的物理学和动力学提供了新的视角。

英文摘要:

Since the detection of the asymptotic properties of the dipole gravity modes in the Sun, the quest to find individual gravity modes has continued. An extensive and deeper analysis of 14 years of continuous GOLF/SoHO observational data, unveils the presence of a pattern of peaks that could be interpreted as individual dipole gravity modes in the frequency range between 60 and 140 microHz, with amplitudes compatible with the latest theoretical predictions. By collapsing the power spectrum we have obtained a quite constant splitting for these patterns in comparison to regions where no g modes were expected. Moreover, the same technique applied to simultaneous VIRGO/SoHO data unveils some common signals between the power spectra of both instruments. Thus, we are able to identify and characterize individual g modes with their central frequencies, amplitudes and splittings allowing to do seismic inversions of the rotation profile inside the solar core. These results open a new light on the physics and dynamics of the solar deep core.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑