Publication Abstracts

Allen and Knapp 1978

Allen, M., and G.R. Knapp, 1978: Radio observations of interstellar CN toward diffuse clouds, dark clouds, black clouds, and circumstellar clouds. Astrophys. J., 225, 843-856, doi:10.1086/156548.

Emission at 113 GHz from the CN molecule has been searched for in a large number of interstellar regions, primarily dark dust clouds. Lines have been detected in four dark clouds, the first time CN has been observed in this type of object. Comparative CO observations were also performed. The CN/CO abundance ratio varies from cloud to cloud, even among objects which are apparently otherwise similar. This variation suggests that the chemistry of dark clouds may be time-dependent. A previously reported detection of CN emission from a diffuse cloud was not confirmed. Several black clouds and circumstellar clouds were reobserved to obtain better line parameters and to serve as comparative interstellar chemical systems.

Export citation: [ BibTeX ] [ RIS ]

BibTeX Citation

@article{al08200o,
  author={Allen, M. and Knapp, G. R.},
  title={Radio observations of interstellar CN toward diffuse clouds, dark clouds, black clouds, and circumstellar clouds},
  year={1978},
  journal={Astrophys. J.},
  volume={225},
  pages={843--856},
  doi={10.1086/156548},
}

[ Close ]

RIS Citation

TY  - JOUR
ID  - al08200o
AU  - Allen, M.
AU  - Knapp, G. R.
PY  - 1978
TI  - Radio observations of interstellar CN toward diffuse clouds, dark clouds, black clouds, and circumstellar clouds
JA  - Astrophys. J.
VL  - 225
SP  - 843
EP  - 856
DO  - 10.1086/156548
ER  -

[ Close ]

• Return to 1978 Publications

• Return to Publications Homepage