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Combined color indexes and photometric structure of galaxies NGC 834 and NGC 1134

D. Bizyaev·A. Zasov·S. Kajsin
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Abstract

We present the results of BVRI photometry of two galaxies with active star formation: NGC 834 and NGC 1134. Combined color index Q_{BVI} was used to investigate the photometrical structure of the galaxies. Index Q_{BVI} is not affected by internal extinction and is sensitive to the presence of blue stars. Ring-like region with active star formation at 15" from the center reveals itself in the Q_{BVI} map of NGC 834. Three-arm spiral structure is well-seen on the Q_{BVI} map of NGC 1134. We propose to use the combined indexes Q_{BVI} and similarly defined indices as a tracers of Star Formation activity and structure of dusty galaxies.

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D. Bizyaev, A. Zasov, S. Kajsin. 2000-01-17. Combined color indexes and photometric structure of galaxies NGC 834 and NGC 1134. https://doi.org/10.1134/1.1358378

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