Scaling relations in early-type galaxies from integral-field stellar kinematics

Early-type galaxies (ETGs) satisfy a now classic scaling relation Re ∝ σ1.2eI−0.8e, the Fundamental Plane (FP; Djorgovski & Davis 1987; Dressler et al. 1987), between their size, stellar velocity dispersion and mean surface brightness. A significant effort has been devoted in the past twenty yea...

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Published in:Proceedings of the International Astronomical Union 2009-11, Vol.5 (H15), p.81-81
Main Authors: Cappellari, M., Scott, N., Alatalo, K., Blitz, L., Bois, M., Bournaud, F., Bureau, M., Davies, R. L., Davis, T. A., de Zeeuw, P. T., Emsellem, E., Falcon-Barroso, J., Khochfar, S., Krajnovic, D., Kuntschner, H., Lablanche, P.-Y., McDermid, R. M., Morganti, R., Naab, T., Sarzi, M., Serra, P., van den Bosch, R. C. E., van de Ven, G., Weijmans, A., Young, L. M.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Contributed Papers
Kinematics
Star & galaxy formation
Stars & galaxies
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Summary:Early-type galaxies (ETGs) satisfy a now classic scaling relation Re ∝ σ1.2eI−0.8e, the Fundamental Plane (FP; Djorgovski & Davis 1987; Dressler et al. 1987), between their size, stellar velocity dispersion and mean surface brightness. A significant effort has been devoted in the past twenty years to try to understand why the coefficients of the relation are not the ones predicted by the virial theorem Re ∝ σ2eI−1e.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921310008343