Abstract
We present observational evidence, from Hαin face-on galaxies, which strongly favours the hypothesis that escaping photons from H II regions are the basic cause of the ionization of the diffuse ionized gas in galaxy discs, and by implication are the chief cause of the Reynolds layer in the Milky Way, and refer the reader to models based on these observations which go further, geometrically, to confirm this conclusion.
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References
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© 2004 Kluwer Academic Publishers
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Beckman, J.E., Zurita, A. (2004). Reynolds Layers in Nearby Galaxies: The Face-On View. In: Alfaro, E.J., Pérez, E., Franco, J. (eds) How does the Galaxy Work?. Astrophysics and Space Science Library, vol 315. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2620-X_16
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DOI: https://doi.org/10.1007/1-4020-2620-X_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-2619-5
Online ISBN: 978-1-4020-2620-1
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