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Making Spirals with Counter-Rotating Disks: The Case of NGC 4550

Published online by Cambridge University Press:  25 May 2016

D. Pfenniger
D. Pfenniger*
Affiliation:
Geneva Observatory, University of Geneva CH-1290 Sauverny, Switzerland

Abstract

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A single merger scenario for making galaxies such as NGC 4550 possessing equal coplanar counter-rotating stellar disks is investigated by collisionless N-body technique. The scenario is successful in producing an axisymmetric disk made of two almost equal counter-rotating populations. The final disk shows a clear bimodal line profile in the outer part, which demonstrates that disk-disk mergers do not always produce ellipticals.

Type
Mergers & Remnants
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 157 - 160
Copyright
Copyright © Kluwer 1999 

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