Morphology of the M 81 galaxy bulge

Details Morphology of the M 81 galaxy bulge Morphology of the M 81 galaxy bulge

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pazh...17..393g&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 17, May 1991, p. 393-403. In Russian. In Russian. In Russian.

Mathematics

Logic

Galactic Bulge, Galactic Structure, Morphology, Photographic Plates, High Resolution, Telescopes

Scientific paper

The present study considers B and V high-resolution isophote maps and morphological functions of the M 81 Galaxy bulge in the frame of 4 x 7 arcmin and in the surface brightness range of 17-21 m/sq arcsec made by the plates of 6-, 2-, and 1-m telescopes. The changes of brightness, color, position angle, and axial ratio as a function of the equivalent radius indicate the presence of a minibar-like formation and an inner-ring-type structure. Their dimensions are about 0.64 and 1.54 kps, respectively.

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