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

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

2000-01-17

arxiv.org/abs/astro-ph/0001290v1

Astron.Lett. 27 (2001) 217-227

Astronomy and Astrophysics

Astrophysics

3 pages, 4 embedded figures, LaTeX2e, using the EslabStyle.cls file, presented as a poster in the 33rd ESLAB Symp. "Star forma

Scientific paper

10.1134/1.1358378

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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