A Spitzer study of, gamma ray burst selected, star forming galaxies – Niels Bohr Institute - University of Copenhagen

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Niels Bohr Institute > Calendar > 2008 > A Spitzer study of, ga...

A Spitzer study of, gamma ray burst selected, star forming galaxies

The detection of a gamma ray burst (GRB) is a clear indication that its
host galaxy harbours massive star formation, and it is currently under
debate how GRB hosts relate to other known populations of star forming
galaxies. Multiwavelength photometry can help establish this relation,
essential if we are to understand the full range of properties of star
forming galaxies at high redshifts and fully exploit the potential of GRBs
as probes of cosmic star formation.

I have used Spitzer data to derive the properties (star formation rate,
total stellar mass, intrinsic extinction, and physical evolution) of a
sample of GRB host galaxies. I found them to be low mass, star forming
systems and, when compared to other types of star-forming galaxies, the
hosts of GRBs have some of the highest specific star formation rates.

In the course of my presentation I will briefly discuss my methodology and
highlight the most important results of my research. I will also give a
quick overview of my immediately upcoming projects to further this line of
work.