Kutner et al. 1979
Kutner, M.L., K. Guélin, N.J. Evans, II, K.D. Tucker, and S.C. Miller, 1979: Recombination lines from the interface between the Orion molecular cloud and the H II region NGC 1977. Astrophys. J., 227, 121-125, doi:10.1086/156710.
We report observations of the Cl10α and H110α lines at 6 cm wavelength and the C76α line at 2 cm wavelength from the vicinity of the H II region NGC 1977. The favorable viewing angle in this source allows a direct study of the transition from the H II region to the molecular cloud to be made. The observations confirm that the carbon lines arise from a distinct boundary region at the edge of the molecular cloud. The C+ emission zone penetrates about 0.3 pc into the molecular cloud and has a derived electron density of about 1 cm-3. It appears that the shock front preceding the expanding ionization front may be responsible for an extended heated region just inside the molecular cloud.
Citation Styles
Show: ACP, AGU, AMS, ApJ, JQSRT, Science style
Kutner, M.L., Guélin, K., Evans, N.J., II, Tucker, K.D., and Miller, S.C.: Recombination lines from the interface between the Orion molecular cloud and the H II region NGC 1977, Astrophys. J., 227, 121-125, doi:10.1086/156710, 1979.
Kutner, M.L., K. Guélin, N.J. Evans, II, K.D. Tucker, and S.C. Miller (1979), Recombination lines from the interface between the Orion molecular cloud and the H II region NGC 1977, Astrophys. J., 227, 121-125, doi:10.1086/156710.
Kutner, M.L., K. Guélin, N.J. Evans, II, K.D. Tucker, and S.C. Miller, 1979: Recombination lines from the interface between the Orion molecular cloud and the H II region NGC 1977. Astrophys. J., 227, 121-125, doi:10.1086/156710.
Kutner, M.L., Guélin, K., Evans, N.J., II, Tucker, K.D., & Miller, S.C. 1979, Astrophys. J., 227, 121, doi:10.1086/156710.
Kutner ML, Guélin K, Evans NJ II, Tucker KD, Miller SC. Recombination lines from the interface between the Orion molecular cloud and the H II region NGC 1977, Astrophys J 1979;227:121-125. doi:10.1086/156710.
M.L. Kutner, K. Guélin, N.J. Evans, II, K.D. Tucker, S.C. Miller, Astrophys. J. 227, 121-125, doi:10.1086/156710 (1979).
