Photometric structure of polar-ring galaxies

Details Photometric structure of polar-ring galaxies Photometric structure of polar-ring galaxies

2003-09-09

arxiv.org/abs/astro-ph/0309260v1

Astron.Astrophys.416:889-900,2004

Astronomy and Astrophysics

Astrophysics

12 pages, A&A accepted

Scientific paper

10.1051/0004-6361:20031382

The results of B, V, R surface photometry of three polar-ring galaxies (PRGs) -- A0017+2212, UGC1198, UGC4385 -- are presented. The data were acquired at the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. It was shown that all three galaxies are peculiar late-type spirals in the state of ongoing interaction or merging. We discuss available photometric properties of the PRGs with spiral hosts and consider the Tully-Fisher relation for different types of PRGs. In agreement with Iodice et al. (2003), we have shown that true PRGs demonstrate ~1/3 larger maximum rotation velocities than spiral galaxies of the same luminosity. Peculiar objects with forming polar structures satisfy, on average, the Tully-Fisher relation for disk galaxies but with large scatter.

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