The Solar Acoustic Spectrum and Eigenmode Parameters
The Solar Acoustic Spectrum and Eigenmode Parameters
复制标题
太阳声谱和本征模参数
DOI：
10.1126/science.272.5266.1292
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发表时间：
1996
期刊：
影响因子：
56.9
通讯作者：
W. Williams
中科院分区：
文献类型：
--
作者：
F. Hill;Philip B. Stark;Robin Stebbins;E. Anderson;H. M. Antia;Timothy M. Brown;T. Duvall;D. Haber;J. Harvey;David H. Hathaway;R. Howe;R. Hubbard;Harrison P. Jones;J. R. Kennedy;S. Korzennik;A. Kosovichev;John Leibacher;K. Libbrecht;J. Pintar;Edward J. Rhodes;J. Schou;Michael Thompson;Steven Tomczyk;C. Toner;R. Toussaint;W. Williams
全球振荡网络小组（GONG）项目从持续36天的数据集中估计了超过25万个太阳声共振的频率，振幅和线宽。单个数据集的频率分辨率为0.321微赫兹。对于在方位角阶数m上平均的频率，形式误差的中位数为0.044微赫兹，相关的分数误差的中位数为1.6 × 10−5。对于3年的数据集，分数误差预计为3 × 10−6。龚m平均频率测量值与其他日震数据集相差0.03至0.08微赫兹。这些差异是由系统误差、随机误差和太阳结构可能发生的变化共同造成的。
The Global Oscillation Network Group (GONG) project estimates the frequencies, amplitudes, and linewidths of more than 250,000 acoustic resonances of the sun from data sets lasting 36 days. The frequency resolution of a single data set is 0.321 microhertz. For frequencies averaged over the azimuthal order m, the median formal error is 0.044 microhertz, and the associated median fractional error is 1.6 × 10−5. For a 3-year data set, the fractional error is expected to be 3 × 10−6. The GONG m-averaged frequency measurements differ from other helioseismic data sets by 0.03 to 0.08 microhertz. The differences arise from a combination of systematic errors, random errors, and possible changes in solar structure.