Probing star formation at intermediate z
Abstract
We summarize the latest results of an ongoing project aimed at connecting starburst galaxies in the local Universe and Lyman-break galaxies (LBGs) in the distant Universe using rest-frame ultraviolet (UV) images. We are quantifying star formation in the local Universe using GALEX data of interacting galaxies and we are using Hubble Space Telescope U-band and optical images of the Ultra Deep Field to quantify star formation at intermediate (z ~ 1) and high (z > 2) redshifts, respectively. We are measuring sizes of star-forming clumps in all redshift ranges and searching for evolutionary effects. We chose the rest-frame UV to do this work because young and massive stars radiate most their energy in the UV and also because LBGs are selected to be UV-bright. We discuss whether all galaxies go through an LBG phase and whether disks show any sign of size of evolution at z < 1.
- Publication:
-
Star Clusters: Basic Galactic Building Blocks Throughout Time and Space
- Pub Date:
- January 2010
- DOI:
- 10.1017/S1743921309992043
- Bibcode:
- 2010IAUS..266..550V
- Keywords:
-
- galaxies: evolution;
- galaxies: starburst