Buoyancy waves in Pluto's high atmosphere

Implications for stellar occultations

William B. Hubbard, Donald W Mccarthy, C. A. Kulesa, S. D. Benecchi, M. J. Person, J. L. Elliot, A. A S Gulbis

Research output: Contribution to journalArticle

15 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)284-289
Number of pages6
JournalIcarus
Volume204
Issue number1
DOIs
StatePublished - Nov 2009

Fingerprint

stellar occultation
Pluto (planet)
Pluto
buoyancy
gravity wave
gravity waves
atmospheres
wave dispersion
atmosphere
internal wave
dissipation
internal waves
occultation
wavelength
scintillation
cut-off
high resolution
wavelengths

Keywords

  • Atmospheres, dynamics
  • Occultations
  • Pluto, atmosphere

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Hubbard, W. B., Mccarthy, D. W., Kulesa, C. A., Benecchi, S. D., Person, M. J., Elliot, J. L., & Gulbis, A. A. S. (2009). Buoyancy waves in Pluto's high atmosphere: Implications for stellar occultations. Icarus, 204(1), 284-289. https://doi.org/10.1016/j.icarus.2009.06.022

Buoyancy waves in Pluto's high atmosphere : Implications for stellar occultations. / Hubbard, William B.; Mccarthy, Donald W; Kulesa, C. A.; Benecchi, S. D.; Person, M. J.; Elliot, J. L.; Gulbis, A. A S.

In: Icarus, Vol. 204, No. 1, 11.2009, p. 284-289.

Research output: Contribution to journalArticle

Hubbard, WB, Mccarthy, DW, Kulesa, CA, Benecchi, SD, Person, MJ, Elliot, JL & Gulbis, AAS 2009, 'Buoyancy waves in Pluto's high atmosphere: Implications for stellar occultations', Icarus, vol. 204, no. 1, pp. 284-289. https://doi.org/10.1016/j.icarus.2009.06.022
Hubbard, William B. ; Mccarthy, Donald W ; Kulesa, C. A. ; Benecchi, S. D. ; Person, M. J. ; Elliot, J. L. ; Gulbis, A. A S. / Buoyancy waves in Pluto's high atmosphere : Implications for stellar occultations. In: Icarus. 2009 ; Vol. 204, No. 1. pp. 284-289.
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