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Modeling the Mass Distribution in the Spiral Galaxy NGC 3198

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, , Citation E V Karukes and P Salucci 2014 J. Phys.: Conf. Ser. 566 012008 DOI 10.1088/1742-6596/566/1/012008

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1 SISSA/ISAS, International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy

2 INFN, Sezione di Trieste, Via Valerio 2, 34127, Trieste, Italy

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1742-6596/566/1/012008

Abstract

We study the HI Rotation Curve of the spiral galaxy NGC 3198 in terms of mass decomposition. We model the Rotation Curve in the framework of different models for the Dark Matter distribution: the Burkert profile and NFW profile. We show that Universal Rotation Curve (Burkert halo+stellar disk+gas disk) fits data accurately. Instead, the NFW (NFW halo+stellar disk+gas disk) model gives non-physical values of NFW halo parameters.

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10.1088/1742-6596/566/1/012008