SAURON observations of Sa bulges: the formation of a kinematically decoupled core in NGC5953

Details SAURON observations of Sa bulges: the formation of a kinematically decoupled core in NGC5953 SAURON observations of Sa bulges: the formation of a kinematically decoupled core in NGC5953

2006-02-17

arxiv.org/abs/astro-ph/0602399v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, to appear in "Science Perspectives for 3D Spectroscopy", eds. M. Kissler-Patig, M. M. Roth and J. R. Walsh

Scientific paper

We present results from our ongoing effort to understand the nature and evolution of nearby galaxies using the SAURON integral-field spectrograph. In this proceeding we focus on the study of the particular case formed by the interacting galaxies NGC5953 and NGC5954. We present stellar and gas kinematics of the central regions of NGC5953. We use a simple procedure to determine the age of the stellar populations in the central regions and argue that we may be witnessing the formation of a kinematically decoupled component from cold gas being acquired during the ongoing interaction with NGC5954.

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