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Stars and gas in the inner parts of galaxies seen in SAURON integral field observations
Stockholm University, Faculty of Science, Department of Astronomy.
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2007 (English)In: New Astronomy Reviews, ISSN 1387-6473, Vol. 51, no 1-2, 29-33 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2007. Vol. 51, no 1-2, 29-33 p.
Keyword [en]
Galaxies: bulges, Galaxies: evolution, Galaxies: formation, Galaxies: kinematics and dynamics, Galaxies: spiral, Galaxies: structure, Galaxies: nuclei, Galaxies: individual (NGC 5448, M 100)
National Category
Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:su:diva-20170DOI: doi:10.1016/j.newar.2006.10.013OAI: diva2:186695
Available from: 2007-02-27 Created: 2007-02-27 Last updated: 2011-01-11Bibliographically approved

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Fathi, Kambiz
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Department of Astronomy
Astronomy, Astrophysics and Cosmology

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