New observations and a photographic atlas of polar-ring galaxies

Details New observations and a photographic atlas of polar-ring galaxies New observations and a photographic atlas of polar-ring galaxies

Nov 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100.1489w&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, Nov. 1990, p. 1489-1522, 1721-1755.

Mathematics

Logic

213

Astronomical Catalogs, Astronomical Photography, Galactic Evolution, Galactic Structure, Ring Galaxies, Astronomical Models, Chaos, Interacting Galaxies, Spiral Galaxies

Scientific paper

A photographic atlas of polar-ring galaxies and related objects is presented. The atlas includes kinematically confirmed polar-ring galaxies (category A), good condidates based on their morphological appearance (category B), possible candidates (category C), and possibly related objects (category D). New photometric and kinematic observations are reported for several galaxies in the catalog, including observations that show that UGC 7576 and UGC 9796 ( = II ZW 73) are S0 galaxies with polar rings. Roughly 0.5 percent of all nearby S0 galaxies appear to have polar rings. When corrected for various selection effects (e.g., nonoptimal viewing orientation, possible dimming, or limited lifetime of the ring) the percentage increases to about 5 percent of S0 galaxies which have, or have had a polar ring.

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