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9.6. Dynamical models of NGC 3115

Published online by Cambridge University Press:  25 May 2016

E. Emsellem
Affiliation:
(ESO)
H. Dejonghe
Affiliation:
(Gent)

Extract

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We present here axisymmetric two and three integral models of the S0 galaxy NGC 3115. The light and mass models are based on an application of the Multi-Gaussian Expansion (MGE) method on V band images of NGC 3115. The resulting model fits the photometry from the central HST pixel (0.045 arcsec) up to a radius of ~ 500 arcsec (combining a wide field image kindly provided by Cecilia Scorza, an HRCAM/CFHT image, and the WFPC2/HST image). The deprojection is analytical if each component corresponds to a 3D Gaussian. Here, the model is assumed axisymmetric. The analytical expression of the luminosity density serves as the input for all the dynamical models.

Type
Part III. Black Holes and Central Activity
Copyright
Copyright © Kluwer 1998