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Neutral Gas Contributions to [S II] Galactic Background Emission

Published online by Cambridge University Press:  25 May 2016

S. J. Petuchowski
Affiliation:
NASA/ Goddard Space Flight Center spet@stars.gsfc.nasa.gov
C. L. Bennett
Affiliation:
NASA/ Goddard Space Flight Center spet@stars.gsfc.nasa.gov

Extract

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Elevated ratios of [S II]/Hα relative to those typical of H II regions have been used to identify supernova remnants (SNRs) and also characterize the diffuse Galactic background (Reynolds 1985) and gas observed on the large scale in other galaxies (e.g., Lehnert & Heckman 1994). We explore the implications for these regions of the fact that ionized sulfur may exist both in gas that is predominantly neutral as well as fully ionized.

Type
Chapter 7: How are we to Understand the Small Scale Structure of the ISM?
Copyright
Copyright © Kluwer 1996 

References

Blair, W. P., Kirshner, R. P. & Chevalier, R. A. 1981, Astrophysical Journal , 247, p. 879.CrossRefGoogle Scholar
Chapman, R. D., & Henry, R. J. 1971, Astrophysical Journal , 168, p. 169.CrossRefGoogle Scholar
Draine, B. T. 1978, Astrophysical Journal Supplement Series , 36, p. 595.CrossRefGoogle Scholar
Hollenbach, D. J., Takahashi, T., & Tielens, A. G. G. M. 1991, Astrophysical Journal , 377, p. 192.CrossRefGoogle Scholar
Lehnert, M. D. & Heckman, T. M. 1994, Astrophysical Journal Letters , 426, p. L27.CrossRefGoogle Scholar
Petuchowski, S. J., & Bennett, C. L., Astrophysical Journal , in press.Google Scholar
Reynolds, R. J. 1985, Astrophysical Journal , 294, p. 256.CrossRefGoogle Scholar
Smith, R. C., Kirshner, R. P., Blair, W. P., Long, K. S., & Winkler, P. F. 1993, Astrophysical Journal , 407, p. 564.CrossRefGoogle Scholar