Bibcode
Zhu, L.; van den Bosch, R. C. E.; van de Ven, G.; Falcón-Barroso, J.; Lyubenova, M.; Meidt, S. E.; Martig, M.; Yildirim, A.
Bibliographical reference
Proceeding of the conference The Interplay between Local and Global Processes in Galaxies, Cozumel, Mexico, 2016-4, Eds. S. F. Sanchez, C. Morisset and G. Delgado-Inglada
Advertised on:
6
2016
Citations
0
Refereed citations
0
Description
Ongoing and upcoming integral-field spectroscopic surveys will provide
stellar kinematic maps of thousands of nearby galaxies across the Hubble
sequence. For the first time, we have been able to construct
Schwarzschild dynamical models that fit in detail elliptical through
spiral galaxies from the CALIFA survey in a homogeneous way. This orbit
superposition method allows us to uncover the luminous and dark matter
in galaxies without (astro)physically unjustified assumptions on shape
and velocity anisotropy made in common dynamical approaches. Moreover,
the inferred intrinsic orbital structure enables us to dynamically
decompose galaxies into different components such as bulges, thin and
thick disks. Subsequently, we can for each component robustly derive its
mass distribution as well as internal rotation, velocity dispersion and
higher-order dynamics. In this way, we obtain a detailed physical
insight into nearby galaxies from statistically well-defined samples,
which in turn provides a true benchmark for galaxy formation models in a
cosmological context.