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For refcode 1996A&AS..118..461F:
Retrieve 13 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1996A&AS..118..461F Disc galaxies with multiple triaxial structures. II. JHK surface photometry and numerical simulations D. Friedli, H. Wozniak, M. Rieke, L. Martinet and P. Bratschi Observatoire de Geneve, CH-1290 Sauverny, Switzerland Observatoire de Marseille, F-13248 Marseille Cedex 4, France Steward Observatory, University of Arizona, Tucson AZ 85721, U.S.A. Received October 16, 1995; accepted February 2, 1996 Abstract. - We present detailed JHK surface photometry with ellipse fits of 13 galaxies selected from previous optical observations as likely candidates for having a secondary bar or a triaxial bulge within the primary bar. We have found 7 double-barred galaxies, 3 double-barred galaxies with an additional intermediate structure with twisted isophotes, and 3 galaxies with a bar and central twisted isophotes. A global analysis of the structural parameter characteristics in the I- and K-bands is presented. Various numerical models of galaxies with bars within bars also analysed using the ellipse fitting technique and compared to the observations. A thorough review of the possible hypotheses able to explain this phenomenon is given with emphasis on the most likely ones. Key words: galaxies: photometry - galaxies: structure - galaxies: fundamental parameters - galaxies: nuclei-galaxies: evolution
Retrieve 13 NED objects in this reference.
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