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Two-dimensional kinematics of the circumnuclear region of Seyfert galaxies using GMOS-IFU
Published online by Cambridge University Press: 24 November 2004
Abstract
We discuss results of the mapping of both the stellar and gaseous kinematics of the nuclear region of 4 nearby Seyfert galaxies, on the basis of GMOS IFU observations in the spectral region of the CaII triplet (8500Å). We do not find in any of these galaxies central drops (within the central hundred parsecs or so) in the stellar velocity dispersions, as recently reported in the literature for a number of Seyferts. However, we do conclude that apparent drops are observed when there is contamination of the CaII triplet absorption lines by underlying line emission. When extended gas emission ([SIII]9068Å) is observed, the gas velocity field differs from the stellar velocity field. The latter is usually consistent with the classical “spider diagram” characteristic of disk galaxies.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html
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- Information
- Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 155 - 156
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- © 2004 International Astronomical Union