Nov 16, 2017

Jacqueline VanGorkom, Columbia University

""CHILES, the COSMOS HI Large Extragalactic Survey""

Our understanding of the growth of large scale structure has advanced
enormously over the last decade, thanks to an impressive synergy between
theoretical and observational efforts. The formation and evolution
of galaxies within these structures is less well understood and
especially the details of the gas physics during accretion and outflow
are still controversial.

Neutral hydrogen images can help distinguish between growth by mergers and
accretion of gas, and between inflow and outflow.  While these images
have taught us a lot about galaxy evolution in the local universe very
few HI imaging observations have been done beyond z=0.1.  The recent
upgrade of the VLA has now made it possible to go as far as z=0.5.
CHILES the COSMOS HI Large Extragalactic Survey, is an ongoing pencil
beam survey of one pointing in the COSMOS field covering the range of
0<z<0.5. I will discuss the goals, challenges and the very first
results of this survey.

Event Details

Nov 16, 2017


4421 Sterling Hall

Coffee served at 3:30pm; talk starts at 3:45pm

Speaker Host:
Professor Eric Wilcots

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