EAS Publications Series
Volume 4, 2002Infrared and Submillimeter Space Astronomy: An International Colloquium to Honor the Memory of Guy Serra
|Page(s)||297 - 297|
|Published online||25 September 2002|
M. Giard, J.P. Bernard, A. Klotz and I. Ristorcelli (eds)
EAS Publications Series, 4 (2002) 297
Photophysics of interstellar PAHS+ in the PIRENEA experiment
CESR, CNRS et Université Paul Sabatier,
BP. 4346, 31028 Toulouse Cedex 04, France
2 LCP, CNRS et Université Paris Sud, Bât. 350, 91405 Orsay Cedex, France
This paper reports the first results obtained on the photodissociation of the isolated PAH cations 12C24H+12, 13C12C23H+12 and 12C24H+10, using the astrochemistry experimental set-up PIRENEA. The dissociation patterns of these ions involve the loss of pairs of hydrogen atoms. A first interpretation indicates that the -H2 dissociation path is favoured compared to the -H path in our experimental conditions. These results might have important implications on the formation of H2 in the interstellar medium.
© EAS, EDP Sciences, 2002
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