Improving the signal-to-noise ratio in solar oscillation spectra

被引：0

作者：

Garcia, RA ^{[1
]}

Jefferies, CM

Toner, CG

Pallé, PL

机构：

[1] Ctr Etud Saclay, DAPNIA, DSM, CEA,Serv Astrophys, F-91191 Gif Sur Yvette, France

[2] Natl Opt Astron Observ, Natl Solar Observ, Tucson, AZ 85726 USA

[3] Inst Astrofis Canarias, E-38205 Tenerife, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 1999年 / 346卷 / 03期

关键词：

Sun : oscillations; methods : data analysis;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe a data analysis technique for helioseismology that provides a reduction in the contamination of the solar oscillation spectrum from incoherent noise. We show that the technique allows: (i) a significant improvement in the signal-to-noise ratio for the modes in the oscillation power spectrum, and (ii) the solar velocity background spectrum to be observed at low frequencies using ground-based observations.

引用

页码：L61 / L64

页数：4

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