A&A 402, 531-539 (2003)
Projected properties of a family of triaxial mass models: High-order residualsD. K. Chakraborty and M. Das
School of Studies in Physics, Pt. Ravishankar Shukla University, Raipur 492 010, India
(Received 27 May 2002 / Accepted 18 February 2003 )
A family of triaxial mass models is described, for which the projected surface density can be calculated analytically, and can show ellipticity variations, isophote twists and high-order residuals. These can be compared with observations. These models are flattened versions of the -model with density and the modified Hubble model with density profile , and are constructed by addition of five spherical harmonic terms to the spherical models. The potential of the models can be expressed in a simple form.
Key words: galaxies: photometry -- galaxies: structure
Offprint request: D. K. Chakraborty, firstname.lastname@example.org
© ESO 2003