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Issue A&A
Volume 416, Number 3, March IV 2004
Page(s) 889 - 900
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20031382



A&A 416, 889-900 (2004)
DOI: 10.1051/0004-6361:20031382

Photometric structure of polar-ring galaxies

V. P. Reshetnikov

Astronomical Institute of St. Petersburg State University, 198504 St. Petersburg, Russia

Isaac Newton Institute of Chile, St. Petersburg Branch, Russia
(Received 3 June 2003 / Accepted 21 August 2003 )

Abstract
The results of B, V, R surface photometry of three polar-ring galaxies (PRGs) - A 0017+2212, UGC 1198, UGC 4385 - 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.


Key words: galaxies: individual: A 0017+2212, UGC 1198, UGC 4385 -- galaxies: photometry -- galaxies: formation -- galaxies: structure

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© ESO 2004


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