1. A SAURON look at galaxy bulges
- Author
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Harald Kuntschner, Jesús Falcón-Barroso, Michele Cappellari, Reynier Peletier, Davor Krajnović, Roland Bacon, Martin Bureau, Richard M. McDermid, Roger L. Davies, Eric Emsellem, P. T. de Zeeuw, and Astronomy
- Subjects
VELOCITY DISPERSIONS ,DYNAMICS ,galaxies : evolution ,Population ,galaxies ,bulges ,integral field spectroscopy ,FOS: Physical sciences ,NGC-7332 ,galaxies : elliptical and lenticular, cD ,Astrophysics ,Kinematics ,galaxies : kinematics and dynamics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,S0 GALAXIES ,ELLIPTICAL GALAXIES ,cD ,METALLICITIES ,galaxies : individual (NGC 5866, NGC 7332) ,NGC 7332) ,galaxies : elliptical and lenticular ,KINEMATICS ,education ,Astrophysics::Galaxy Astrophysics ,SHAPED BULGES ,Physics ,education.field_of_study ,Astrophysics (astro-ph) ,galaxies : individual (NGC 5866 ,Astronomy and Astrophysics ,Decoupling (cosmology) ,Galaxy ,Space and Planetary Science ,Substructure ,GALACTIC BARS ,galaxies : formation ,SPIRAL GALAXIES - Abstract
Kinematic and population studies show that bulges are generally rotationally flattened systems similar to low-luminosity ellipticals. However, observations with state-of-the-art integral field spectrographs, such as SAURON, indicate that the situation is much more complex, and allow us to investigate phenomena such as triaxiality, kinematic decoupling and population substructure, and to study their connection to current formation and evolution scenarios for bulges of early-type galaxies. We present the examples of two S0 bulges from galaxies in our sample of nearby galaxies: one that shows all the properties expected from classical bulges (NGC5866), and another case that presents kinematic features appropriate for barred disk galaxies (NGC7332)., Comment: 4 pages, 3 figures, accepted for publishing in AN (refereed conf. proc. of the Euro3D Science workshop, IoA Cambridge, May 2003)
- Published
- 2004