SHAO Astrophysics Colloquium

Title：Dynamical and chemical modeling of Milky Way-type galaxies
Speaker: E. Athanassoula (Laboratoire d'Astrophysique de Marseille)

Time： 3pm, October 19 (Thursday)

Location: Lecture Hall, 3rd floor

Abstract:

I will use N-body simulations to follow the formation and evolution of Milky-Way type galaxies in the framework of a scenario starting with the merging of two protogalaxies, each with a hot gaseous halo. Various components -- the thin and the thick disc, the classical bulge, the bar(s), the spirals, etc -- form and their properties reproduce well those observed. Examining the bar/bulge region, I find close links between kinematics and metallicity for the various populations, as found in our Galaxy. The radial surface density profiles of the disc reproduce the three types observed and evolve with redshift as observed. Such simulations can be very useful to help us understand the evolutionary mechanisms at play.

Group meetings

Black hole Accretion and High-energy Astrophysics /Black Hole Feedback and Cosmic Ray Astrophysics Seminar

Location: 1608

Time: 14:00-16:00, Wednesday(Oct. 18th)

Speaker: Maochun Wu

Title: The close environments of accreting massive black holes are shaped by radiative feedback

http://adsabs.harvard.edu/abs/2017Natur.549..488R

Speaker: Ruiyu Zhang
Title: The Spatially Uniform Spectrum of the Fermi Bubbles: the Leptonic AGN Jet Scenario

http://adsabs.harvard.edu/abs/2017arXiv170605025Y