Discovery of a ring galaxy in Bootes

Details Discovery of a ring galaxy in Bootes Discovery of a ring galaxy in Bootes

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..632h&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Oct.-Nov. 1979, p. 632-635. Oesterreichischer Fonds zur Foerderung d

Astronomy and Astrophysics

Astronomy

3

Astronomical Photography, Astronomical Spectroscopy, Galactic Structure, Ring Galaxies, Spiral Galaxies, Optical Emission Spectroscopy, Radiant Flux Density, Radio Astronomy

Scientific paper

A new ring galaxy was detected on the POSS. The object shows a distinct ring with an outer diameter of the major axis of about 33 arc sec and has a surface brightness of approximately 22.3 mag/sq arc sec and 23.8 mag/sq arc sec on the red and blue POSS prints, respectively. It lacks an easily discernible companion galaxy. Because of its well-defined ring structure and comparatively large angular size the galaxy can be placed along in a line with the handful of well-defined ring galaxies and may also serve as a prototype. The radio flux density at 6 cm is less than 7 mJy.

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