Author/Authors :
Hubbard، نويسنده , , W.B. and McCarthy، نويسنده , , D.W. and Kulesa، نويسنده , , C.A. and Benecchi، نويسنده , , S.D. and Person، نويسنده , , M.J. and Elliot، نويسنده , , J.L. and Gulbis، نويسنده , , A.A.S.، نويسنده ,
Abstract :
We apply scintillation theory to stellar signal fluctuations in the high-resolution, high signal/noise, dual-wavelength data from the MMT observation of the 2007 March 18 occultation of P445.3 by Pluto. A well-defined high wavenumber cutoff in the fluctuations is consistent with viscous-thermal dissipation of buoyancy waves (internal gravity waves) in Pluto’s high atmosphere, and provides strong evidence that the underlying density fluctuations are governed by the gravity-wave dispersion relation.
Keywords :
Atmospheres , occultations , Atmosphere , Dynamics , Pluto
