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

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

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...346l..61g&link_type=abstract

Astronomy and Astrophysics, v.346, p.L61-L64 (1999)

Astronomy and Astrophysics

Astrophysics

16

Sun: Oscillations, Methods: Data Analysis

Scientific paper

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.

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