M100 and NGC 6951: Morphological Clues to Central Dynamics

Knapen, J., Shlosman, I., Beckman, J.E., Heller, C.H., Peletier, R.F., de Jong, R.S., Nadeau, D. and Doyon, R. (1996) M100 and NGC 6951: Morphological Clues to Central Dynamics. In: In: Barred galaxies, ASP Conference Series 91 :. Astronomical Society of the Pacific, pp. 416-9. ISBN 1-886733-12-0
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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 2.2um.


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