A SIMPLE KINEMATIC MODELING FOR FLATTENED S0 GALAXIES

Citation
E. Loyer et al., A SIMPLE KINEMATIC MODELING FOR FLATTENED S0 GALAXIES, Astronomy and astrophysics (Berlin), 334(3), 1998, pp. 805-813
Citations number
33
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
00046361
Volume
334
Issue
3
Year of publication
1998
Pages
805 - 813
Database
ISI
SICI code
0004-6361(1998)334:3<805:ASKMFF>2.0.ZU;2-G
Abstract
We present mass models for three SO galaxies with a strong disk compon ent observed almost on edge (NGC 2732, NGC 4111, and NGC 4350). For th e analytical representation of the surface-brightness distribution, th e method of Multi-Gaussian Expansion, first presented by Monnet et al. (1992: A&A 253, 366) is applied to V-band surface photometry. A simpl ified dynamical model is adopted, and the calculated kinematic profile s are compared to long-slit spectroscopic data; overall agreement is r eached, except for the innermost region, where additional mass is need ed for all three galaxies. We discuss possible applications.