Surface color photometry of five barred spiral galaxies |
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Authors: | Sadanori Okamura Bunshiro Takase |
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Institution: | (1) Dept. of Astronomy, University of Tokyo, Japan;(2) Tokyo Astronomical Observatory, University of Tokyo, Mitaka, Japan |
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Abstract: | Distributions of the surface brightness and the surface color of five barred spiral galaxies expressed in the form of digital maps are presented. This is the first step to determine the composition of the components of barred spiral galaxies — bar, spiral arm, inner ring and outer ring — and to obtain an accurate picture of the dynamical model of a barred spiral galaxy. We have found that (a) the bar is redder than the spiral arm and has a color similar to that of the disk and (b) the inner ring of theSB(r) type galaxy is bluer than the bar and rather resembles the spiral arm. |
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