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On the formation of ring galaxies

Published online by Cambridge University Press:  12 August 2011

Yu-Ting Wu  and
Ing-Guey Jiang
Yu-Ting Wu
Affiliation:
Department of Physics, National Tsing-Hua University, Hsinchu, Taiwan 30013, R. O. C. email: d9622814@oz.nthu.edu.tw
Ing-Guey Jiang
Affiliation:
Department of Physics and Institute of Astronomy, National Tsing-Hua University, Hsinchu, Taiwan30013, R. O. C. email: jiang@phys.nthu.edu.tw
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Abstract

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The formation scenario of ring galaxies is addressed in this paper. We focus on the P-type ring galaxies presented in Madore, Nelson & Petrillo (2009), particularly on the axis-symmetric ones. Our simulations show that a ring can form through the collision of disc and dwarf galaxies, and the locations, widths, and density contrasts of the ring are well determined. We find that a ring galaxy such as AM 2302-322 can be produced by this collision scenario.

Keywords

galaxies: formationgalaxies: interactionsgalaxies: kinematics and dynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S271: Astrophysical Dynamics: From Stars to Galaxies , June 2010 , pp. 102 - 109
Copyright
Copyright © International Astronomical Union 2011

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