A reanalysis of the 1971 Beta Scorpii occultation data : study of the temperature fluctuations and search for wave activity

Details A reanalysis of the 1971 Beta Scorpii occultation data : study of the temperature fluctuations and search for wave activity A reanalysis of the 1971 Beta Scorpii occultation data : study of the temperature fluctuations and search for wave activity

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002dps....34.1803r&link_type=abstract

American Astronomical Society, DPS Meeting #34, #18.03; Bulletin of the American Astronomical Society, Vol. 34, p.873

Astronomy and Astrophysics

Astronomy

Scientific paper

The Beta Scorpii occultation by the southern hemisphere of Jupiter on May 13th, 1971 was thoroughly studied by three different groups at the University of Texas (Hubbard et al., 1972), Cornell University (Veverka et al., 1974) and at Paris-Meudon Observatory (Combes et al., 1971). Their results provided temperature profiles at the southern high latitudes, and allowed French and Gierasch (1974) to detect for the first time possible signatures of propagating gravity waves in a planetary atmosphere. From the Meudon group lightcurves, we obtain new temperature profiles taking into account the advances in our knowledge about Jupiter's atmosphere since the data was first analyzed. Using the Continuous Wavelet Transform and techniques developed for the analysis of a more recent stellar occultation by Jupiter in 1999 (Raynaud et al.,submitted), we study the small scale fluctuations in the retrieved temperature profiles, calculate and compare their power spectrum to the 'universal' saturated gravity-wave power spectrum (Smith et al.,1987), and search for dominant wave modes and their parameters.
References : Combes et al., 1971, A&A, 15, 235-238.
French and Gierasch, 1974, J.Atm.Sci., 31, 1707-1712.
Hubbard et al., 1972, Astron.J., 77, 41-59.
Smith et al., 1987, J.Atmos.Sci., 44, 1404-1410.
Veverka et al., 1974, Astron.J., 79, 73-84.

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