Photometric study of polar-ring galaxies. III. Forming rings

Details Photometric study of polar-ring galaxies. III. Forming rings Photometric study of polar-ring galaxies. III. Forming rings

1996-08-15

arxiv.org/abs/astro-ph/9608100v1

Astronomy and Astrophysics

Astrophysics

8 pages, latex, text only. Full preprint with Figures available on request to resh@aispbu.spb.su. Accepted for publication in

Scientific paper

We present the results of detailed surface photometry of NGC 3808B and NGC 6286 - two spiral galaxies with possibly forming ring-like structures rotating around major axes of the galaxies. The formation of rings in NGC 3808B and NGC 6286 being accompanied by accretion of matter on galactic disk results in some interesting gasdynamical and stellardynamical effects in these galaxies. One can note, for instance, peculiar rotation curve of NGC 3808B gaseous disk; strong infrared and H-alpha emission from the galaxies; bending and flaring stellar disks in both galaxies. Our observations clearly illustrate the possibility that polar-ring galaxies may be formed as a result of matter accretion from one galaxy to another.

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