Disc galaxies with multiple triaxial structures. I. BVRI and Hα surface photometry.

Details Disc galaxies with multiple triaxial structures. I. BVRI and Hα surface photometry. Disc galaxies with multiple triaxial structures. I. BVRI and Hα surface photometry.

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26as..111..115w&link_type=abstract

Astronomy and Astrophysics Supplement, v.111, p.115

Astronomy and Astrophysics

Astrophysics

210

Galaxies: Photometry, Galaxies: Structure, Galaxies: Fundamental Parameters, Galaxies: Spiral

Scientific paper

We present a BVRI survey of 36 galaxies selected as candidates for having a misaligned secondary bar or a triaxial bulge inside the primary bar. Fifteen galaxies have also been observed in Hα. A positive detection of more than one triaxial structure has been found in 22 galaxies shared out as follows: 13 double-barred galaxies, 3 triple-barred galaxies, 3 double-barred galaxies with an additional structure with twisted isophotes, and 3 galaxies with a bar and a structure with twisted isophotes. Triaxial deformation(s) have been found in 6 galaxies classified as unbarred in RC3. The number of Seyfert nuclei amongst double-barred systems is high (6 over 13).

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