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Astrophysics and Space Science

, Volume 281, Issue 1–2, pp 411–414 | Cite as

Dark matter haloes in interacting isolated galaxy pairs: The Importance of the Hα rotation curve

  • Isaura Fuentes-Carrera
  • Philippe Amram
  • Margarita Rosado
Article

Abstract

We present Hα scanning Fabry-Perot observations of the interacting galaxy pair NGC 3893/96 (Kar 302), an M51-type galaxy pair. The velocity field and rotation curve of the main galaxy (NGC 3893) were derived. These show the galaxy follows a rather axisymmetric behaviour. Together with HI observations, several mass models were adjusted in order to study the nature of the dark halo as well as the mass-to-light ratio of the galaxy. We find that in order to constrain these models, it is important to have a high resolution Hα rotation curve for the inner parts of the galaxy.

Keywords

Rotation Curve Mass Model Stellar Disk Dark Matter Halo Emission Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Isaura Fuentes-Carrera
    • 1
    • 2
  • Philippe Amram
    • 2
  • Margarita Rosado
    • 1
  1. 1.Instituto de AstronomiaUniversidad Nacional Autonoma de MexicoMexico
  2. 2.Laboratoire d'Astrophysique de MarseilleFrance

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