The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 38 Issue 2
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- Pages.40.1-40.1
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- 2013
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- 1226-2692(pISSN)
Interactions between early- and late-type galaxies and morphology transformation
- Hwang, Jeong-Sun (Korea Institute for Advanced Study) ;
- Park, Changbom (Korea Institute for Advanced Study)
- Published : 2013.10.08
Abstract
We perform a set of N-body/SPH simulations of galaxy interactions between early- and late-type galaxies with the mass ratio of 2 to 1. We show that mass transfer during a fly by interaction (the closest approach distance ~50kpc) can cause the morphology transformation of an early-type galaxy to a late type. In our simulations, we vary the orbital parameters of the interactions and the cold gas fraction of the late-type galaxy to compare how the morphology transformation is affected by the amount of mass transfer and orbital angular momentum of cold gas accreted to the early type. We also include hot halo gas in the galaxy models and show the location of the tidal bridge can be influenced by the shock generated during the collision.
Keywords