Solar Gravity Modes from Acrim/smm Irradiance Data
Solar Gravity Modes from Acrim/smm Irradiance Data
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来自 Acrim/smm 辐照度数据的太阳重力模式
DOI：
10.1007/978-94-009-4009-3_17
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
C. Fröhlich
中科院分区：
文献类型：
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作者：
C. Fröhlich
太阳最大任务卫星 (SMM) 上的 ACRIM 太阳常数实验的太阳辐照度数据已被用来寻找太阳重力模式。采用统计方法分析1980年270天和1984年240天时间序列的功率谱，以确定基本g模式周期间隔To和旋转频率vR。鉴于太阳核心弱相互作用大质量粒子（WIMP）及其对To的影响的提议，搜索时间已延长至25分钟。频率范围为 10 至 40 μHz 的两个时间序列的分析结果的最佳拟合 To 为 29.85 分钟。这接近 WIMP 模型的预期值。从 g 模式的旋转分裂推断出的太阳中心的角速度为每秒 6.6·10−6，这是光球速率的 2.3 倍。
Solar irradiance data from the ACRIM solar constant experiment on board the Solar Maximum Mission satellite (SMM) have been used to search for solar gravity modes. The power spectra of the time series of 270 days in 1980 and of 240 days in 1984 are analysed using a statistical method for the determination of the basic g-mode period separation To and the rotational frequency vR. In the view of the proposal of weakly interacting massive particles (WIMP) in the solar core and their impact on To the search has been extended down to 25 minutes. The results of the analysis of both time series in the frequency range from 10 to 40 μHz are best fitted by a To of 29.85 minutes. This is close to the expected value for the WIMP model. The angular velocity in the center of the Sun inferred from the rotational splitting of the g-modes amounts to 6.6·10−6 per sec, which is 2.3 times the photospheric rate.