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20 April 2024

» arxiv » astro-ph/0609551

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Stars and Gas in the Inner Parts of Galaxies seen in SAURON Integral Field Observations
R.F. Peletier ; K. Fathi ; E.L. Allard ; J.H. Knapen ; M. Sarzi ; G. van de Ven ; J. Falcon-Barroso ; M. Cappellari ; P.T. de Zeeuw ; E. Emsellem ;
Date:	19 Sep 2006
Abstract:	We give two examples of spiral galaxies that show non-circular gas motions in the inner kiloparsecs, from SAURON integral field spectroscopy. We use harmonic decomposition of the velocity field of the ionized gas to study the underlying mass distribution, employing linear theory. The higher order harmonic terms and the main kinematic features of the observed data are consistent with an analytically constructed simple bar model. We also present maps of a number of strong absorption lines in M 100, derive simple stellar populations and correlate them with features in the gas kinematics.
Source:	arXiv, astro-ph/0609551
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