Using 3D Spectroscopy to Probe the Orbital Structure of Composite Bulges

Bibcode
2015IAUS..309..359E
DOI
10.1017/S1743921314010503
Erwin, P.; Saglia, Roberto; Thomas, Jens; Fabricius, Maximilian; Bender, Ralf; Rusli, Stephanie; Nowak, Nina; Beckman, J. E.; Vega Beltrán, Juan Carlos
Bibliographical reference

Galaxies in 3D across the Universe, Proceedings of the International Astronomical Union, IAU Symposium, Volume 309, pp. 359-360

Advertised on:
2
2015
Number of authors
9
IAC number of authors
2
Citations
2
Refereed citations
2
Description
Detailed imaging and spectroscopic analysis of the centers of nearby S0 and spiral galaxies shows the existence of ``composite bulges'', where both classical bulges and disky pseudobulges coexist in the same galaxy. As part of a search for supermassive black holes in nearby galaxy nuclei, we obtained VLT-SINFONI observations in adaptive-optics mode of several of these galaxies. Schwarzschild dynamical modeling enables us to disentangle the stellar orbital structure of the different central components, and to distinguish the differing contributions of kinematically hot (classical bulge) and kinematically cool (pseudobulge) components in the same galaxy.
Type
Non-refereed
Galaxies

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