Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985sses.nasa..263u&link_type=abstract
In its Solar Seismology from Space. p 263-270 (SEE N85-25060 14-92)
Astronomy and Astrophysics
Astronomy
Electromagnetic Noise, Signal Distortion, Solar Activity Effects, Solar Oscillations, Velocity Distribution, Astronomical Models, Earth Atmosphere, Helioseismology, Image Motion Compensation
Scientific paper
The effect of the supergranulation velocity field combined with seeing smearing of the solar image on the measurement of solar oscillations is discussed. Depending on the nature of the observational velocity determination scheme, the image motions can shift the background velocity pattern and produce a source of noise that reduces the quality of the observations. The magnitude of this effect is estimated and observational results which are consistent with this estimate are presented.
Cacciani Alessandro
Rhodes Elmer J.
Tomczyk Steve
Ulrich Richard K.
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