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A triaxial model for the bulge of NGC 4697

Published online by Cambridge University Press:  07 August 2017

W.W. Zeilinger ,
M.L. Winsall  and
H. Dejonghe
W.W. Zeilinger
Affiliation:
European Southern Observatory, Garching bei München, Germany D-8046
M.L. Winsall
Affiliation:
Sterrenkundig Observatorium Gent, Krijgslaan 281 (S9), Gent, Belgium B-9000
H. Dejonghe
Affiliation:
Sterrenkundig Observatorium Gent, Krijgslaan 281 (S9), Gent, Belgium B-9000

Extract

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There is now mounting evidence that the intrinsic shape of elliptical galaxies and bulges of disk galaxies may generally be triaxial. There are different signatures of non–axisymmetric structures observed: velocity gradients along the minor axis (e.g. Davies & Birkinshaw 1986), twisting of the isophotes (e.g. Williams & Schwarzschild 1979) and misalignment between bulge and disk major axes (e.g. Bertola, Vietri & Zeilinger 1991). Therefore, a framework of reliable algorithms for the dynamical modelling of such triaxial potentials is needed.

Type
Contributed Papers
Information
Symposium - International Astronomical Union , Volume 153: Galactic Bulges , 1993 , pp. 443 - 444
Copyright
Copyright © Kluwer 1993 

References

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