0 citations
The photodissociation of CO in circumstellar envelopes
The Astrophysical Journal1988Vol. 328, pp. 797–797
Citations Over TimeTop 10% of 1988 papers
Abstract
The CO photodissociation rate for the unshielded ISM is calculated using recent laboratory results which confirm that photodissociation occurs by way of line absorption. A value of 2.0 x 10 to the -10th/s, an order of magnitude higher than the rate used in the past, is obtained. The new rate and a treatment of the radiative transfer and shielding are used to develop a theory for the CO abundance in the circumstellar envelopes of cool, evolved stars, and results are presented on the spatial variation of CO, C, and C(+). It is shown that these distributions play important roles in determining the observational properties of circumstellar envelopes.
Related Papers
- → Modelling enhanced density shells in the circumstellar envelope of IRC +10216(2003)22 cited
- → The distribution of HCN in the circumstellar envelope of IRC + 10216(1984)28 cited
- → The 14 μm Band of Carbon Stars(1999)7 cited
- → The Mass-Loss History of Carbon Stars Probed by Co Line and Dust Continuum Emission(2003)
- ASTROPHYSICS Infrared spectra of carbon stars observed by the ISO SWS(1999)