H$α$ kinematics of KPG 390

Details H$α$ kinematics of KPG 390 H$α$ kinematics of KPG 390

2009-08-14

arxiv.org/abs/0908.2109v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

To appear in the Proceedings of the Galaxy Wars: Stellar Populations and Star Formation in Interacting Galaxies Conference. AS

Scientific paper

In this work we present scanning Fabry-Perot H$\alpha$ observations of the isolated interacting galaxy pair NGC 5278/79 obtained with the PUMA Fabry-Perot interferometer. We derived velocity fields, various kinematic parameters and rotation curves for both galaxies. Our kinematical results together with the fact that dust lanes have been detected in both galaxies, as well as the analysis of surface brightness profiles along the minor axis, allowed us to determine that both components of the interacting pair are trailing spirals.

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