The Stellar Populations of E and S0 Galaxies as Seen with SAURON

Bibcode
2007spts.conf..123K
DOI
10.1007/978-3-540-73491-8_19
Kuntschner, H.; Emsellem, E.; Bacon, R.; Bureau, M.; Cappellari, M.; Davies, R. L.; de Zeeuw, P. T.; Falcón-Barroso, J.; Krajnović, D.; McDermid, R. M.; Peletier, R. F.; Sarzi, M.
Bibliographical reference

Science Perspectives for 3D Spectroscopy, Eso Astrophysics Symposia European Southern Observatory. ISBN 978-3-540-73490-1. Springer-Verlag Berlin Heidelberg, 2007, p. 123

Advertised on:
0
2007
Number of authors
12
IAC number of authors
0
Citations
0
Refereed citations
0
Description
We present selected results from integral-field spectroscopy of 48 earlytype galaxies observed as part of the SAURON survey. Maps of the Hβ Fe5015, Mgb and Fe5270 indices in the Lick/IDS system were derived for each of the survey galaxies. The metal line strength maps show generally negative gradients with increasing radius roughly consistent with the morphology of the light profiles. Remarkable deviations from this general trend exist, particularly the Mg b isoindex contours appear to be flatter than the isophotes of the surface brightness for about 40% of our galaxies without significant dust features. Generally these galaxies exhibit significant rotation. We infer from this that the fast-rotating component features a higher metallicity and/or an increased Mg/Fe ratio, as compared to the galaxy as a whole.
Type
Non-refereed

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