Com les varietats invariants formen espirals i anells en galaxies barrades

Authors

  • Mercè Romero-Gómez
  • Patricia Sánchez-Martín
  • Josep J. Masdemont

Abstract

The spectacularity of barred galaxies resides not only in the presence of their bars, extended in the center of the galaxy, but also in the rings and spiral arms developed in the exterior regions. There is no clear theory on the rings formation and, until recently, there was only one explaining the origin of spiral arms in non-barred galaxies. In recent years, and based on dynamical systems, we have developed a theory that relates rings and spiral arms with hyperbolic invariant manifolds associated with periodic and quasiperiodic orbits about the collinear points of the system.

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Published

2014-09-10

How to Cite

Romero-Gómez, M., Sánchez-Martín, P., & Masdemont, J. J. (2014). Com les varietats invariants formen espirals i anells en galaxies barrades. Butlletí De La Societat Catalana De Matemàtiques, 29(1), 51–75. Retrieved from https://revistes.iec.cat/index.php/BSCM/article/view/85829.001

Issue

Vol. 29 No. 1 (2014)

Section

Articles

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