University of Birmingham > Talks@bham > Astrophysics Seminars > Probing the formation of massive galaxies

Probing the formation of massive galaxies

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact Alastair Sanderson.

This talk presents recent results on studies of the properties of massive galaxies. It is split into two parts. The first one focuses on the underlying dark matter halos. Strong gravitational lensing combined with a detailed analysis of the stellar populations allows us to probe the relative contribution of baryonic and dark matter within a few effective radii. The baryon fraction profile is obtained for a sample of lensing galaxies, finding significant differences with respect to total mass. The second part of the talk will focus on compact massive galaxies at high redshift. The detection of these systems, so early in cosmic epoch, and with such small sizes, still challenge the current models of galaxy formation. By the use of spectral fitting, one can extract the star formation histories, and contrast the properties of these galaxies with the hypotheses proposed so far to explain their evolution on the size-mass plane.

This talk is part of the Astrophysics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

Talks@bham, University of Birmingham. Contact Us | Help and Documentation | Privacy and Publicity.
talks@bham is based on talks.cam from the University of Cambridge.