Limb darkening fluctuations - The discrepancy with Doppler data and the 160-min oscillation

Details Limb darkening fluctuations - The discrepancy with Doppler data and the 160-min oscillation Limb darkening fluctuations - The discrepancy with Doppler data and the 160-min oscillation

Jun 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...161l...5y&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 161, no. 1, June 1986, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

1

Atmospheric Effects, Doppler Effect, Gravity Waves, Limb Darkening, Solar Limb, Solar Oscillations, Brunt-Vaisala Frequency, Helioseismology, Power Spectra

Scientific paper

The observed amplitude discrepancy between solar limb darkening and Doppler measurements in the five-minute range suggests possible earth atmospheric oscillations, a phenomenon which is also suggested by results of the Alpine Experiment. This effect could explain observed short-period oscillations, the 160-minute period oscillation, and differences noted between Doppler data and theoretical calculations. Periods of 5-20 minutes were noted in recent Doppler measurements of telluric lines of water and oxygen (Kobanov, 1985).

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