Reference : H[SUB]2[/SUB] temperature and self-absorption: analysis of Jovian auroral spectra obtain...
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/33627
H[SUB]2[/SUB] temperature and self-absorption: analysis of Jovian auroral spectra obtained with the FUSE satellite
English
Gustin, Jacques mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Feldman, P. D. [Johns Hopkins University, Baltimore]
Gérard, Jean-Claude mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP) >]
Ben-Jaffel, L. [IAP, France]
Desert, J*-M [IAP, France]
Moos, H. W. [Johns Hopkins University, Baltimore]
Sahnow, D. J. [Johns Hopkins University, Baltimore]
Weaver, H. A. [Johns Hopkins University, Baltimore]
Wolven, B. C. [Johns Hopkins University, Baltimore]
Roueff, E. [Observatoire de Paris, France]
Abgrall, H. [Observatoire de Paris, France]
Ajello, J. [Jet Propulsion Laboratory, Pasadena]
Vidal-Madjar, A. [IAP, France]
1-Nov-2001
Bulletin of the American Astronomical Society
1067
No
No
International
DPS meeting
[en] High-resolution spectra of the Jovian aurora have been obtained with unprecedented spectral resolution in the 900-1190 Ì· window with the the Far Ultraviolet Spectroscopic Explorer (FUSE), using the 30"x30" LWRS aperture. All observed features belong to the H[SUB]2[/SUB] transitions from the B, C, B', D, B" and D' electronic states to the ground-state. These emissions are excited by inelastic collisions of the primary and secondary auroral electrons with H[SUB]2[/SUB] molecules. The relative intensity distribution of the observed lines depends on the rotational temperature of the emitting layer and self-absorption. Below 1100 Ì· , the transitions leading to the v" = 0, 1 and 2 levels of ground-state are partially or totally absorbed by H[SUB]2[/SUB], giving indications about the vibrational H[SUB]2[/SUB] distribution and overlying column. After a validation with an unabsorbed and a self-absorbed laboratory spectrum obtained in controlled conditions (100K, 300 eV), this study compares the observations and synthetic spectra, generated by a code including the B, C and B', D, B" and D' Rydberg states. The rotational and vibrational H[SUB]2[/SUB] temperatures are determined as well as the overlying H[SUB]2[/SUB] column. The combination of these parameters is used to determine the depth of the auroral energy deposition. This work is based on data obtained for the Guaranteed Time Team by the NASA-CNES-CSA FUSE mission operated by the Johns Hopkins University. French participants are supported by CNES. Financial support to U.S. participants has been provided by NASA contract NAS5-32985.
Researchers ; Professionals
http://hdl.handle.net/2268/33627
http://adsabs.harvard.edu/abs/2001DPS....33.1806G

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