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Numerical Simulations of M51

Research output: Chapter in Book/Report/Conference proceedingChapter

Original languageEnglish
Title of host publicationGalaxy Interactions at Low and High Redshift
Subtitle of host publicationInternational Astronomical Union Symposia
EditorsJ.E. Barnes, D.B. Sanders
PublisherSpringer-Verlag GmbH
Pages105-108
Volume186
ISBN (Electronic)978-94-011-4665-4
ISBN (Print)978-0-7923-5833-6
DOIs
Publication statusPublished - 1999

Abstract

We present computer simulations of the interaction of NGC5194 and 5195 involving the gaseous, stellar and dark matter compnonents of the two galaxies. Several observational features of NGC 5194 are reproduced using orbital parameters close to the best guess from previous calulations, including : 1) Broad stellar spiral arms 2) Narrow gaseous spiral arms with strong shock velocity discontinuities 3) A bar-like oval distortion in the central stellar bulge 4) Sharp bends in the gaseous spiral arms 5) A long southern gaseous tail 6) A dense nuclear gas ring Points (2), (3), (4) and (6) have not been reported in previous computer simulations.

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