[Previous] | [Session 36] | [Next]

[36.06] Jupiter's Auroral Infrared Emissions from FTS/BEAR Spectro-imaging Observations

J.-P. Maillard (IAP, Paris), E. Lellouch, T. Fouchet, P. Drossart, B. Bézard (Obs. Paris), H. Waite (SPRLC, Ann Arbor), R. Gladstone (SWRI, San Antonio), J.-Y. Mandin, V. Dana (Univ. Paris-6)

On October 10--12, 2000, we observed Jupiter's auroral regions with the Fourier Transform Spectrometer of the CFH telescope in its spectro-imaging mode (BEAR). The data consist of 14 data cubes covering the northern and southern auroral zones with a seeing-limited resolution of 0.4-0.6''. The spectral range is defined by the use of two narrow filters; one of them is centered at 2.09 \mum and covers the strong H₃⁺ 4777 cm^-1 line and four other, weaker, H₃⁺ lines ; the other includes the H₂ 1-0 S(1) line at 4712 cm^-1 and the H₃⁺ 4732~cm^-1 line. The spectral resolution is about 25000 (0.2 cm^-1). These observations, which clearly show the different morphology of the H₃⁺ and H₂ auroral infrared emissions, contain potential information on the 2-D distribution of (i) the H₃⁺ rotational temperature and column density (ii) the kinetic temperature at the levels sounded in H₃⁺ and H₂ and (iii) wind velocities at these levels. Preliminary results will be presented at the meeting.

If the author provided an email address or URL for general inquiries, it is as follows:

maillard@iap.fr

Bulletin of the American Astronomical Society, 34, #3< br> © 2002. The American Astronomical Soceity.