Physics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007epsc.conf..594b&link_type=abstract
European Planetary Science Congress 2007, Proceedings of a conference held 20-24 August, 2007 in Potsdam, Germany. Online at ht
Physics
Scientific paper
The problem of the oxygen emission in the planetary atmospheres is crucial to constraint the atmospheric models. The oxygen 130nm triplet is optically thick in those atmospheres and is resonant with sun radiations. The instruments SPICAV and SPICAM are able to measure the intensity of this triplet without any spectral resolution. The Hubble space telescope with the STIS instrument is able to get enough spectral resolution to see the lines profile In previous simulations, the overlapping between this triplet and lines of the CO fourth positive band has never been taken into account.We present new simulations calculating the oxygen 130nm triplet intensity and line profile taking into account the overlapping problem with a partial redistribution. Due to the structure of the triplet, we had to develop a new expression of the RII redistribution function. The effects of the CO lines enlarge strongly the 130nm lines and consequently modified the total intensity of the triplet.
Barthelemy Marc
Chaufray Jean-Yves
Gronoff Guillaume
Lilensten Jean
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