Galactic Bulges: the SAURON Perspective

Falcón-Barroso, J.; Peletier, R. F.; Bacon, R.; Cappellari, M.; Davies, R. L.; de Zeeuw, P. T.; Emsellem, E.; Krajnovic´, D.; Kuntschner, H.; McDermid, R. M.; Sarzi, M.; van den Bosch, R. C. E.; van de Ven, G.
Bibliographical reference

Galaxy Evolution: Emerging Insights and Future Challenges ASP Conference Series, Vol. 419, proceedings of a conference held 11-14 November 2008 at the University of Texas, Austin, Texas, USA. Edited by S. Jogee, I. Marinova, L. Hao, and G. A. Blanc. San Francisco: Astronomical Society of the Pacific, 2009., p.131

Advertised on:
12
2009
Number of authors
13
IAC number of authors
0
Citations
0
Refereed citations
0
Description
We present results on the study of 24 bulges of Sa galaxies observed with the integral-field unit SAURON at the William Herschel Telescope. Here we review some of the main features observed in our maps in terms of their kinematics and stellar populations, and unveil a rather complex picture in which the centers of spiral galaxies are made of several components: one (or more) thin, disclike component, often containing recent star formation, and another, elliptical-like component, consisting of old stars and rotating more slowly, dominating the light above the plane.