The observed background solar velocity noise

Details The observed background solar velocity noise The observed background solar velocity noise

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...192l...7j&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 192, no. 1-2, March 1988, p. L7-L9. CAICYT-supported research.

Astronomy and Astrophysics

Astrophysics

26

Background Noise, Solar Oscillations, Solar Velocity, Noise Measurement, Radial Velocity, Solar Activity, Solar Granulation

Scientific paper

Using accurate radial velocity observations of integral sunlight, the background solar velocity noise has been measured at different frequencies of interest for solar oscillations within a frequency interval between 10-7 and 10-2Hz. Comparison with a numerical model, simulating the most important solar processes: granulation, mesogranulation, supergranulation and active regions, with associated velocity fields shows good agreement at the amplitudes and their, already known, characteristic time scales.

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