Formation of SO, SO+, and S2 by Radiative Association

Details Formation of SO, SO+, and S2 by Radiative Association Formation of SO, SO+, and S2 by Radiative Association

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...624.1121a&link_type=abstract

The Astrophysical Journal, Volume 624, Issue 2, pp. 1121-1125.

Astronomy and Astrophysics

Astronomy

5

Astrochemistry, Atomic Data, Atomic Processes, Ism: Molecules

Scientific paper

Rate coefficients for radiative association of SO, SO+, and S2 are estimated. For temperatures ranging from 300 to 14,000 K, the direct radiative association rate coefficients are found to vary with temperature from 1.73×10-19 to 7.29×10-19 cm3 s-1 and from 1.49×10-21 to 3.70×10-19 cm3 s-1 for S2 and SO, respectively. The rate coefficients for formation through the inverse predissociation for S2 are found to vary from 3.59×10-18 to 1.44×10-20 cm3 s-1. For SO+, the direct rate coefficient varies rapidly with temperature from 3.62×10-27 cm3 s-1 at 2000 K to 2.34×10-20 cm3 s-1 at 14,000 K. The direct radiative association rate coefficients increase with the increase in temperature, but the inverse predissociation rate coefficients decrease with the increase in temperature.

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