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For refcode 1993A&A...275...61T:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1993A&A...275...61T On the intrinsic shape of elliptical galaxies P. Tenjes, G. Busarello, G. Longo, and S. Zaggia Tartu Astrophysical Observatory, Toravere, EE2444 Estonia Osservatorio Astronomico di Capodimonte, via Moiariello 16,I-80131 Napoli, Italy Department of Astronomy, University of Padua, vicolo Osservatorio 5,I- 35122 Padova, Italy Received August 7, 1992; accepted April 1, 1993 Abstract. We present a method to constrain the intrinsic axial ratios, viewing angles and intrinsic kinematic misalignment (the angle between the angular momentum and the shortest axis) of triaxial elliptical galaxies. The method is based on the hypothesis that the isodensity contours of a galaxy can be represented as similar triaxial ellipsoids, and assumes intrinsic stellar velocity fields similar to model III in Franx et al. (1991). The knowledge of the photometric and kinematic properties of the stellar component and the gas morphology is required. The structure of three elliptical galaxies, NGC 5989 (E0), NGC 1947 (E1), and NGC 1052 (E3), is analysed and permitted regions for intrinsic axial ratios and viewing angles are obtained. It is found that in two of the cases the kinematical misalignment is small or absent. Key words: galaxies: elliptical - galaxies: kinematics and dynamics of- galaxies: individual: NGC 1052, NGC 1947, NGC 5898.
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