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Absorption gradient in galaxies, V

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Abstract

The same procedure mentioned in Papers I, II, III for studying the surface distribution of dark clouds is used to study the same phenomenon in the galaxies NGC 253, NGC 2841, NGC 5321, NGC 5194, and NGC 5195 radially and angularly. The general form (sinusoidal distribution function) found earlier is still representative for the present results. Internal absorption was found to vary along these two variables (radially and angularly) in the same way as was found earlier for M31 (the papers cited at the end) which may lead to the assumption of universality of this phenomenon.

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Authors and Affiliations

  1. National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

    I. A. Issa & S. S. Allam

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  1. I. A. Issa
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  2. S. S. Allam
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Issa, I.A., Allam, S.S. Absorption gradient in galaxies, V. Astrophys Space Sci 190, 57–66 (1992). https://doi.org/10.1007/BF00644566

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  • DOI: https://doi.org/10.1007/BF00644566

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