A self-gravitating simulation of the M51 system

Details A self-gravitating simulation of the M51 system A self-gravitating simulation of the M51 system

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj.....99.1798h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 99, June 1990, p. 1798-1812, 2162. Research supported by Cray Research, Inc.

Astronomy and Astrophysics

Astronomy

48

Galactic Structure, Gravitational Effects, Interacting Galaxies, Spiral Galaxies, Astronomical Models, Computerized Simulation, Galactic Evolution, Perturbation

Scientific paper

A time reversal of the outer spiral structure in M51 (NGC 5194) is presented, showing how the azimuthal angle and time of maximum perturbation can be inferred from its companion galaxy (NGC 5195). An orbit search combined with an N-body computer simulation are used to build the features of M51 from the close passage of NGC 5195. The search is constrained with information from the time reversal of the arm. The results suggest that the extended H I feature described by Rots et al. (1990) is a remnant of a previous passage of the companion.

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