Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-09T13:35:19.342Z Has data issue: false hasContentIssue false

Decimeter-Wavelength Studies of Recombination Lines

Published online by Cambridge University Press:  14 August 2015

Yervant Terzian
Affiliation:
National Astronomy and Ionosphere Center, Cornell University, Ithaca, N.Y., U.S.A.
Vernon Pankonin
Affiliation:
National Astronomy and Ionosphere Center, Cornell University, Ithaca, N.Y., U.S.A.

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The results of new studies of decimeter wavelength Hnα and Cnα lines toward galactic nebulae are reported. The observations were made with the 305-m radio telescope of the Arecibo Observatory at 430 MHz (247α and 248α) and 606 MHz (221α). Selected positions in W51, W49, and the Rosette nebula were observed. The observed lines exhibit no pressure broadening; however, this is consistent with the interpretation of the data.

Type
Part 2: Galactic H ii Regions
Copyright
Copyright © Reidel 1974 

References

Chaisson, E. J.: 1972, Nature, Phys. Sci. 239, 83.Google Scholar
Chaisson, E. J.: 1973, in press.Google Scholar
Churchwell, E.: 1970, Ph.D. Thesis, Indiana University.Google Scholar
Dupree, A. K.: 1974, Astrophys. J. 187, 25.Google Scholar
Griem, H. R.: 1967, Astrophys. J. 148, 547.CrossRefGoogle Scholar
Palmer, P., Zuckerman, B., Penfield, H., Lilley, A. E., and Mezger, P. G.: 1969, Astrophys. J. 156, 887.Google Scholar
Pankonin, V.: 1973, Ph.D. Thesis, Cornell University.Google Scholar
Pankonin, V. and Parrish, A.: 1974, in preparation.Google Scholar
Pankonin, V., Parrish, A., and Terzian, Y.: 1973, Astrophys. J. Letters 180, L113.Google Scholar
Parrish, A., Pankonin, V., Heiles, C., Rankin, J. M., and Terzian, Y.: 1972, Astrophys. J. 178, 673.Google Scholar
Parrish, A., Pankonin, V., and Terzian, Y.: 1974, in preparation.Google Scholar
Pedlar, A. and Davies, R. D.: 1972, Monthly Notices Roy. Astron. Soc. 159, 129.Google Scholar
Penfield, H., Palmer, P., and Zuckerman, B.: 1967, Astrophys. J. 148, L25.Google Scholar
Simpson, J. P.: 1973, Astrophys. Space Sci. 20, 187.CrossRefGoogle Scholar