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Universitaetssiegel

Institute of Astronomy and Astrophysics
at the Christian-Albrechts-University of Kiel


Inga Rentzsch-Holm
Institut für Theoretische Physik und Astrophysik
Universität Kiel, 24098 Kiel, Germany
Phone: +49-431-880-4103, Fax: +49-431-880-4100
Email: supas067@astrophysik.uni-kiel.de


Inga Rentzsch-Holm, Hartmut Holweger, Frank Bertoldi: Toward solving the `CO-Problem': chemistry in the disks around Vega and beta Pictoris

ASP Conference Series 132, 275 (1998)



Abstract:

Detailed modelling of the chemistry in the disks around Vega-like stars reveals that photodissociation is indeed capable of destroying CO molecules in the circumstellar environment. The amount of dissociation strongly depends on the disk mass, on the dust extinction properties, and on the effective temperature of the star. The non-detection of CO therefore does not necessarily imply a general gas depletion.


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