Multicolor CCD photometry of six lenticular and spiral galaxies. Stellar population of the galaxies |
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| Authors: | A S Gusev |
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| Institution: | (1) Sternberg Astronomical Institute, Universitetskiĭ pr. 13, Moscow, 119992, Russia |
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| Abstract: | The results of multicolor surface photometry of the S0 galaxies NGC 524, NGC 1138, and NGC 7280 and the spiral galaxies NGC 532, NGC 783, and NGC 1589 are analyzed. UBVRI observations were acquired with the 1.5-m telescope of the Maidanak Observatory (Uzbekistan), while JHK data were taken from the 2MASS catalog. The brightness and color distributions in the galaxies are analyzed. Extinction in dust lanes in three spiral galaxies is estimated. The contributions of the radiation of the spherical and disk components in different photometric bands are estimated. Two-color diagrams are used to estimate the composition of the stellar populations in various galaxy components. The variations of the color characteristics in the S0 galaxies is due mostly to radial metallicity gradients. |
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