Langer 1977

Langer, W.D., 1977: Isotopic abundance of CO in interstellar clouds. Astrophys. J., 212, L39-L42.

The fractional abundances of the isotopic species of carbon monoxide in interstellar clouds are calculated on a basis of gas-phase ion-molecule reactions. The ¹³CO/¹²CO ratio varies significantly with extinction of the ultraviolet radiation field, and in the outer regions of dark dense clouds ¹³CO may be enhanced by a factor of 10. The observational interpretation of the CO to H₂ or A_V relation and the isotopic abundances of carbon are complicated by these effects.

• Download PDF (Document is 387 kB; scanned, no OCR)
• PDF documents require a special viewer such as the free Adobe Reader.

Citation Styles

Show: ACP, AGU, AMS, ApJ, JQSRT, Science style

Langer, W.D.: Isotopic abundance of CO in interstellar clouds, Astrophys. J., 212, L39-L42, 1977.

Langer, W.D. (1977), Isotopic abundance of CO in interstellar clouds, Astrophys. J., 212, L39-L42.

Langer, W.D., 1977: Isotopic abundance of CO in interstellar clouds. Astrophys. J., 212, L39-L42.

Langer, W.D. 1977, Astrophys. J., 212, L39.

Langer WD. Isotopic abundance of CO in interstellar clouds, Astrophys J 1977;212:L39-L42.

W.D. Langer, Astrophys. J. 212, L39-L42 (1977).