A Search for Symmetries in the Star Formation Patterns of Spiral Disks: Barred Galaxies
Rozas, M., Beckman, J.E. and Knapen, J.
(1996)
A Search for Symmetries in the Star Formation Patterns of Spiral Disks: Barred Galaxies.
In:
In: Barred galaxies, ASP Conference Series 91 :.
Astronomical Society of the Pacific, pp. 117-119.
ISBN 1-886733-12-0
The Ha brightness distribution of a face-on galaxy is a classical representation of the massive star formation rate per unit surface area. Here, we present a test for the degree of symmetry in this distribution, aimed at deciding whether this parameter shows a significant difference between barred and non-barred galaxies. The test consists in deriving the cross-correlation function of the Ha brightness as a function of curvilinear distance along pairs of opposed arms. In order to use the test, we first apply a geometrical unfolding technique. Here we explain this technique, and present the initial results of applying the test to NGC 157 and NGC 6764.
Item Type | Book Section |
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Additional information | Original paper can be found at: http://www.astrosociety.org/pubs/cs/070-112.html--Copyright Astronomical Society of the Pacific |
Date Deposited | 15 May 2025 16:20 |
Last Modified | 30 May 2025 23:09 |
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