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Molecular Life-Time against Photodissociation in Dark Interstellar Clouds

Published online by Cambridge University Press:  04 August 2017

S. Aiello ,
B. Barsella ,
C. Cecchi-Pestellini ,
F. Mencaraglia  and
A. Rosolia
S. Aiello
Affiliation:
Dipartimento di Fisica e Unità di Ricerca CNR-GIFCO, Università di Firenze, Italy
B. Barsella
Affiliation:
Istituto di Astronomia, Università di Pisa, Italy
C. Cecchi-Pestellini
Affiliation:
Dipartimento di Fisica e Unità di Ricerca CNR-GIFCO, Università di Firenze, Italy
F. Mencaraglia
Affiliation:
CNR-I.R.O.E., Firenze, Italy
A. Rosolia
Affiliation:
Dipartimento di Fisica e Unità di Ricerca CNR-GIFCO, Università di Firenze, Italy

Extract

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Molecules in the interstellar space are exposed to interstellar radiation, so that they are destroyed by photodissociation processes, leading to the production of smaller molecules and ions, which in turn can react with other molecular species. Therefore, dissociation rates and dissociation products are important for the chemistry of interstellar molecules. This holds true also for relatively opaque and dense clouds (τ ≲ 10 in the visual), due to the multiple scattering of UV radiation by dust.

Type
Basic Studies
Information
Symposium - International Astronomical Union , Volume 120: Astrochemistry , 1987 , pp. 75 - 76
Copyright
Copyright © Reidel 1987 

References

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