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High Mass Star Formation along the Hubble Sequence

Published online by Cambridge University Press:  03 August 2017

N.A. Devereux  and
J.S. Young
N.A. Devereux
Affiliation:
Department of Physics and Astronomy and the Five College Radio Astronomy Observatory University of Massachusetts Amherst, MA 01003 USA
J.S. Young
Affiliation:
Department of Physics and Astronomy and the Five College Radio Astronomy Observatory University of Massachusetts Amherst, MA 01003 USA

Abstract

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The relationship between the far infrared and Hα luminosity has been investigated for a sample of 124 spiral galaxies. We find that the observed far infrared luminosities are comparable to the luminosities expected from the high mass O and B stars which are required to ionize the hydrogen gas. Consequently the far infrared luminosity appears to be a measure of the high mass star formation rate in spiral galaxies. In addition, the all sky IRAS survey has been used to quantify the birthrate of high mass stars for a complete volume limited sample of ∼ 1000 spiral galaxies selected from the Nearby Galaxies Catalog. Our analysis indicates that the median high mass star formation rate is independent of morphology for spirals of types Sa - Scd inclusive. As such, our results challenge the growing perception that the median high mass star formation rate increases along the Hubble sequence Sa - Scd.

Type
VII- Infrared Emission
Information
Symposium - International Astronomical Union , Volume 146: Dynamics of Galaxies and their Molecular Cloud Distributions , 1991 , pp. 230 - 231
Copyright
Copyright © Kluwer 1991 

References

Cox, P., and Mezger, P.G., 1989, Astron. Astrophys. Rev. 1, 49.CrossRefGoogle Scholar
de Jong, T., et al, ApJ (Letters), 278, 67.CrossRefGoogle Scholar
Devereux, N.A., 1987, PhD Thesis, University of Hawaii.Google Scholar
Devereux, N.A., and Young, J.S., 1990, ApJ (Letters) 350, 25.CrossRefGoogle Scholar
Kennicutt, R.C. Jr and Kent, S.M., 1983, A.J., 88, 1094.CrossRefGoogle Scholar
Pompea, S.M., and Rieke, G.H., 1989, ApJ 342, 250.CrossRefGoogle Scholar
Rengarajan, T.N., and Verma, R.P., 1986, Astron. Astrophys. 165, 300.Google Scholar
Rieke, G.H., and Lebofsky, M.J., 1986, ApJ 304, 326.CrossRefGoogle Scholar
Sanders, D.B., and Mirabel, I.F., 1985, ApJ (Letters), 298, 31.CrossRefGoogle Scholar
Thronson, H.A. Jr, et al, 1989, ApJ 344, 747.CrossRefGoogle Scholar
Tully, R.B., 1989, Nearby Galaxies Catalog, (Cambridge: Cambridge University Press).Google Scholar
Young, J.S., Xie, S., Kenney, J.D., and Rice, W.L., 1989, ApJ Supp. 70, 699.CrossRefGoogle Scholar