Publication Abstracts

Aannestad and Field 1973

Aannestad, P.A., and G.B. Field, 1973: Hot H2 and interstellar shocks. Astrophys. J., 186, L29-L32, doi:10.1086/181350.

The rotational excitation of H2, molecules by interstellar shock waves is calculated. Level populations integrated through a shock in a cloud of density of 10 cm-3 have nearly exponential distributions, with effective rotational temperatures Tr = 15 V1.5° K, where V is the shock velocity in km/s. Ortho-para conversion is effective for high shock velocities, but not for low ones, so that the degree of alternation of intensities of rotational lines in the Lyman absorption band should be correlated with V, and therefore with Tr. The results are compared with observations of Hn rotational levels made by the Copernicus satellite.

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BibTeX Citation

  author={Aannestad, P. A. and Field, G. B.},
  title={Hot H2 and interstellar shocks},
  journal={Astrophysical Journal},

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RIS Citation

ID  - aa02000x
AU  - Aannestad, P. A.
AU  - Field, G. B.
PY  - 1973
TI  - Hot H2 and interstellar shocks
JA  - Astrophys. J.
JO  - Astrophysical Journal
VL  - 186
SP  - L29
EP  - L32
DO  - 10.1086/181350
ER  -

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