H3+ in diffuse interstellar gas |
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| Authors: | Cesare Cecchi-Pestellini Alexander Dalgarno |
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| Institution: | Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA; Dipartimento di Astronomia e Scienza dello Spazio, Universitádi Firenze, Largo E. Fermi 5, 50125 Firenze, Italy |
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| Abstract: | A model is constructed of the material in front of the star Cygnus OB2 no. 12 in which dense cores are embedded in diffuse clumps of gas. The model reproduces the measured abundances of C2 and CO, and predicts a column density of 91010 cm2 for HCO+. |
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| Keywords: | molecular processes ISM: clouds ISM: molecules |
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