Abstract
We investigate gas dynamics in the presence of a double inner Lindblad resonance within a barred disk galaxy. Using an example of a prominent spiral, M 100, we reproduce the basic central morphology, including four dominant regions of star formation corresponding to the compression maxima in the gas. These active star forming sites delineate an inner boundary (so-called nuclear ring) of a rather broad oval detected in the near-infrared. We find that inclusion of self-gravitational effects in the gas is necessary in order to understand its behavior in the vicinity of the resonances and its subsequent evolution. The self-gravity of the gas is also crucial to estimate the effect of a massive nuclear ring on periodic orbits in the stellar bar.
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© 1996 Springer-Verlag
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Shlosman, I. (1996). Dynamics of inner galactic disks: The striking case of M 100. In: Sandqvist, A., Lindblad, P.O. (eds) Barred Galaxies and Circumnuclear Activity. Lecture Notes in Physics, vol 474. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0101973
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DOI: https://doi.org/10.1007/BFb0101973
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