Publication Abstracts

Lebrun et al. 1983

Lebrun, F., K. Bennett, G.F. Bignami, J.B.G.M. Bloemen, R. Buccheri, P.A. Caraveo, M. Gottwald, W. Hermsen, G. Kanbach, H.A. Mayer-Hasselwander, T. Montmerle, J.A. Paul, B. Sacco, A.W. Strong, R.D. Wills, T.M. Dame, R.S. Cohen, and P. Thaddeus, 1983: Gamma-rays from atomic and molecular gas in the first galactic quadrant. Astrophys. J., 274, 231-236, doi:10.1086/161440.

The fully sampled Columbia 1° CO survey and the Berkeley H I survey are compared with the COS B gamma-ray survey. As a first step, the study is limited to the high-energy gamma-rays (E > 300 MeV). It is found that a simple model, in which uniformly distributed cosmic rays interact with the interstellar gas, as traced by H I and CO, can account for almost all the observed gamma-rays. Furthermore, if the contribution from point sources to the gamma-ray flux is significant, these sources must have a galactic distribution similar to that of CO. The analysis permits calibration of the ratio between H2 column density and integrated CO line intensity: N(H2)/WCO = (1-3) 1020 molecules cm-2 K-1 km-1 s.

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BibTeX Citation

  author={Lebrun, F. and Bennett, K. and Bignami, G. F. and Bloemen, J. B. G. M. and Buccheri, R. and Caraveo, P. A. and Gottwald, M. and Hermsen, W. and Kanbach, G. and Mayer-Hasselwander, H. A. and Montmerle, T. and Paul, J. A. and Sacco, B. and Strong, A. W. and Wills, R. D. and Dame, T. M. and Cohen, R. S. and Thaddeus, P.},
  title={Gamma-rays from atomic and molecular gas in the first galactic quadrant},
  journal={Astrophysical Journal},

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RIS Citation

ID  - le01400w
AU  - Lebrun, F.
AU  - Bennett, K.
AU  - Bignami, G. F.
AU  - Bloemen, J. B. G. M.
AU  - Buccheri, R.
AU  - Caraveo, P. A.
AU  - Gottwald, M.
AU  - Hermsen, W.
AU  - Kanbach, G.
AU  - Mayer-Hasselwander, H. A.
AU  - Montmerle, T.
AU  - Paul, J. A.
AU  - Sacco, B.
AU  - Strong, A. W.
AU  - Wills, R. D.
AU  - Dame, T. M.
AU  - Cohen, R. S.
AU  - Thaddeus, P.
PY  - 1983
TI  - Gamma-rays from atomic and molecular gas in the first galactic quadrant
JA  - Astrophys. J.
JO  - Astrophysical Journal
VL  - 274
SP  - 231
EP  - 236
DO  - 10.1086/161440
ER  -

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