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Can Bars be Destroyed by Central Mass Concentrations?

  • E. Athanassoula (a1), W. Dehnen (a2) and J. C. Lambert (a3)
Abstract

We use N-body simulations to follow the evolution of bars in the presence of a central mass concentration (CMC). We find that the bar amplitude decreases in response to the CMC, but the bar is not totally destroyed unless the CMC mass is several percent of that of the disc. More centrally concentrated CMCs are more efficient. The bar evolution does not stop after the CMC has fully grown, but continues well after that time.

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Copyright
References
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Athanassoula, E. 2003, MNRAS, 341, 1179
Athanassoula, E., & Misiriotis, A. 2002, MNRAS, 330, 35
Dehnen, W. 2000, ApJ, 536, L39
Dehnen, W. 2002, J. Comp. Phys., 179, 27
Hasan, H., & Norman, C. 1990, ApJ, 361, 69
Hasan, H., Pfenniger, D., & Norman, C. 1993, ApJ, 409, 91
Hozumi, S., & Hernquist, L. 1998, astro-ph 9806002
Norman, C., Sellwood, J. A., & Hasan, H. 1996, ApJ, 462, 114
Shen, J., & Sellwood, J. A. 2003, AAS Meeting 203, 91, 6 (astro-ph 0303130)
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 1539-2996
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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