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On the HII regions in galaxies

Published online by Cambridge University Press:  14 August 2015

J. L. Sersic
J. L. Sersic*
Affiliation:
Observatorio Astronomico, Córdoba

Extract

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In the present paper we shall consider that the HII complexes observed in galaxies may be interpreted as the resulting Strömgren volume produced by a cluster or association of exciting stars. If ρH is the density of the hydrogen surrounding the cluster or association and I the number of ionizing quanta (λ < 912 å) emitted by the stars, the ionized volume becomes

Type
Section 1: The Galaxy
Information
Symposium - International Astronomical Union , Volume 20: The Galaxy and the Magellanic Clouds , 1964 , pp. 208 - 211
Copyright
Copyright © Australian Academy of Science 1964 

References

Heidman, J. (1961).— B.A.N. 15: 314–18.Google Scholar
Sandage, A. R. (1957).— Ap. J. 125: 422–44.Google Scholar
Schmidt, M. (1962).—“Symposium on Stellar Evolution.” pp. 67–75. [La Plata Observatory 1960.] (Nat. Univ. La Plata Astron. Obs.)Google Scholar
Sersic, J. L. (1960).— Zs. f. Ap. 50: 168–77.Google Scholar
de Vaucouleurs, G., and Page, J. (1962).— Ap. J. 136: 107–18.Google Scholar
Westerhout, G. (1958).— B.A.N. 14: 215–60.Google Scholar