Tracing Star Formation and Galaxy Evolution with Multi-Pixel Cameras on the GBT
Abstract
The power of large, sensitive images of the radio sky to advance our understanding of the Universe is profound. This is true for most fields of astronomy, including star formation and evolution, astrochemistry, and fundamental physics to galaxy and cluster formation and evolution and mapping the cosmic web in hydrogen. The GBT has a program in place to develop radio cameras across all frequency bands, dramatically increasing the mapping speed and scientific output of the telescope. Four multipixel instruments are already in use on the GBT. The next step in this program will be Argus+, a 144-pixel replacement for the existing 75-116 GHz array. Cooled, high performance phased array feed systems will then be developed for the lower frequencies, to enable deep HI surveys, pulsar searches, etc., while multi-pixel heterodyne receivers will be developed at the higher frequencies, starting with a 48 pixel system at 18-27 GHz and then moving upward to cover the 30-50 GHz range.
- Publication:
-
American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23326005O