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Dissociative recombination of (SO2+)-O-18: Evidence for three-body breakup
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2004 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 610, no 2, 1228-1233 p.Article in journal (Refereed) Published
Abstract [en]

Branching ratios and absolute cross sections have been measured for the dissociative recombination of (SO2+)-O-18 using the CRYRING ion storage ring. The branching ratio of the (SO2+)-O-18 + e(-)-->(SO)-O-18+O-18 channel amounts to 61%, while the three-body breakup (SO2+)-O-18 + e(-)-->S+2(18)O accounts for the remaining 39% of the total reaction. The cross section of the reaction could be fitted by the expression sigma=(1.2+/-0.4)x10(-15) E-0.96+/-0.02 cm(2), which leads to a thermal reaction rate of k(T)=(4.6+/-0.2)x10(-7)(T/300 K)(-0.52+/-0.02) cm(3) mol(-1) s(-1).

Place, publisher, year, edition, pages
2004. Vol. 610, no 2, 1228-1233 p.
Keyword [en]
astrochemistry, methods : laboratory, molecular data
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:kth:diva-41178DOI: 10.1086/421718ISI: 000222828600054ScopusID: 2-s2.0-4043154965OAI: diva2:443705
QC 20110926Available from: 2011-09-26 Created: 2011-09-23 Last updated: 2011-09-26Bibliographically approved

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