Galaxy Evolution

<span>This composite image shows examples of galaxies similar to our Milky Way at various stages of construction over a time span of 11 billion years.</span> Zoom Image
This composite image shows examples of galaxies similar to our Milky Way at various stages of construction over a time span of 11 billion years.

We can map the evolution of galaxies directly through observations of the distant universe, which provide us with snapshots of the galaxy population at earlier epochs. Practical challenges involve measuring the physical properties of the very faint targets, such as their stellar mass and star formation rate. The most interesting scientific and conceptual issues are how to relate the observed snapshots to the actual evolutionary fates of the galaxies.

Large ground-based (VLT, APEX) and space-based (HST and Spitzer) surveys form the basis of these analyses, in particular GEMSSTAGES, and a new survey with HAWK-I at the VLT.

Recent Results:

Galaxy Structure

The properties of the nearby (and hence present-day) galaxies are remarkably regular. We're studying the detailed structure of galaxies to understand why.

Recent results:

 
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