Symposium summary: dynamics

Details Symposium summary: dynamics Symposium summary: dynamics

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..245..455b&link_type=abstract

Formation and Evolution of Galaxy Bulges, Proceedings of the International Astronomical Union, IAU Symposium, Volume 245, p. 455

Astronomy and Astrophysics

Astronomy

2

Galaxies: Kinematics And Dynamics, Galaxies: Formation, Intergalactic Medium, Cosmology: Theory

Scientific paper

Pseudobulges form from unstable disks, while classical bulges form in violent episodes of star formation when a merger sweeps cold gas to a galactic centre. It seems unlikely that smashed disks contribute much to classical bulges. During mergers central black holes make cusps shallower and inflate kinematically decoupled cores. The abundance of galaxies with no detected classical bulge can perhaps be understood if galaxies exchange gas with the IGM more freely than is often supposed.

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