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.
Events
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.