[Okc-wp4] Extreme Object meeting on Feb. 26

Francesco Taddia ftadd at astro.su.se
Sun Feb 22 14:40:28 CET 2015


Hi all,

this Thursday (13:00, KTH meeting room, 5th floor)
we will have Daniel Perley (Caltech) giving a talk entitled:  "The Swift Gamma-Ray Burst Host Galaxy Legacy Surveyā€¯

Here the abstract:

I will describe the Swift Host Galaxy Legacy Survey (SHOALS), a comprehensive multiwavelength program to characterize the demographics of the GRB host population and its redshift evolution from z=0 to z=7. Using unbiased selection criteria we have designated a subset of 119 Swift gamma-ray bursts which are now being targeted with intensive observational follow-up. Deep Spitzer imaging of every field has already been obtained and analyzed, with major programs ongoing at Keck, GTC, Gemini, VLT, and Magellan to obtain complementary optical/NIR photometry and spectroscopy to enable full SED modeling and derivation of fundamental physical parameters such as mass, extinction, and star-formation rate. Using these data I will present an unbiased measurement of the GRB host-galaxy luminosity and mass distributions and their evolution with redshift, compare GRB hosts to other star-forming galaxy populations, and discuss implications for the nature of the GRB progenitor and the ability of GRBs to serve as tools for measuring and studying cosmic star-formation in the distant universe.

cheers

/Francesco
-------------------------------------------
Francesco Taddia
Postdoctoral Researcher
Department of Astronomy
Stockholm University, Sweden
ftadd at astro.su.se <mailto:ftadd at astro.su.se>







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