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M100 and NGC 6951: Morphological Clues to Central Dynamics

Published online by Cambridge University Press:  12 April 2016

J. H. Knapen ,
I. Shlosman ,
J. E. Beckman ,
C. H. Heller ,
R. F. Peletier ,
R. S. de Jong ,
D. Nadeau  and
R. Doyon
J. H. Knapen
Affiliation:
Université de Montréal, Dép. de Physique, C.P. 6128, Succ. Centre Ville, Montréal, Québec, H3C 3J7 Canada
I. Shlosman
Affiliation:
Dept. of Physics and Astronomy, Univ. of Kentucky, Lexington, KY 40506-0055, USA
J. E. Beckman
Affiliation:
Inst. de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain
C. H. Heller
Affiliation:
Univ. Sternwarte, Geismarlandstraβe 11, 37083 Göttingen, Germany
R. F. Peletier
Affiliation:
Kapteyn Inst., Postbus 800, NL-9700 AV Groningen, the Netherlands
R. S. de Jong
Affiliation:
Univ. of Durham, Physics Dept., South Road, Durham DH1 3LE, UK
D. Nadeau
Affiliation:
Université de Montréal, Dép. de Physique, C.P. 6128, Succ. Centre Ville, Montréal, Québec, H3C 3J7 Canada
R. Doyon
Affiliation:
Université de Montréal, Dép. de Physique, C.P. 6128, Succ. Centre Ville, Montréal, Québec, H3C 3J7 Canada

Abstract

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High-resolution optical and NIR observations are used to constrain a dynamical model of the circumnuclear star forming (SF) region in the barred galaxy M100 (NGC 4321). Small leading arms observed in our K-band image of the nuclear region have been reproduced in numerical modeling of M100, a galaxy with a double inner Lindblad resonance (ILR). We also present preliminary optical and NIR observations of NGC 6951: a barred galaxy with circumnuclear SF showing a distinctly different behavior to M100 at 2.2µm.

Type
Part VII. Theory and Observation
Information
International Astronomical Union Colloquium , Volume 157: Barred Galaxies , 1996 , pp. 416 - 419
Copyright
Copyright © Astronomical Society of the Pacific 1996

References

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