Seminars/Colloquia

Munich Joint Astronomy Colloquium: The Evolution of the Galaxy Mass-Size Relation in Different Environments

Name: Munich Joint Astronomy Colloquium: The Evolution of the Galaxy Mass-Size Relation in Different Environments
Start: 2011-10-20T16:15:00+02:00
End: 2011-10-20T17:45:00+02:00
Location: Eso, Garching

by Simona Mei (JHU)

Thursday 20 Oct 2011, 16:15 → 17:45 Europe/Berlin

Auditorium (Eso, Garching)

Auditorium

Eso, Garching

Description

We present our recent results on the evolution of the galaxy mass-size relation in different environments up to z~1.3. We find that results on the evolution of the mass-size relation depend on how galaxies are morphologically selected (visually or by their sersic indices). When we select early-type galaxies (ETG) by visual morphology, the field mass-size relation does not show significant evolution from z~1.3 to the present in the mass range we probe. Interestingly, this is in contrast from what is observed at higher masses. In denser environments, the ETG mass-size relation at z~1.3 is shifted towards smaller sizes.