HERA, Methods of Computational Optimization in search for Epoch of Reionization
Abstract
HERA (Hydrogen Epoch of Reionization Array) is a radio telescope array aimed at detecting intergalactic neutral Hydrogen, HI, before it is ionized by early forming stars. One of the challenges that HERA faces is distinguishing signals from foreground, which may be up to orders of 5 times larger then the signal we are searching for. instrumental noise and foreground calibration both need models of the expected measured visibility. This modeling is computationally expensive and it would be advantageous to optimize this. The main focus of this project is to reduce the amount of time for the computational model. The two routes that were used to achieve this goal was by reducing the amount of calculation, as well as using multiple processors (i.e. GPUs) to preform calculations simultaneously.
- Publication:
-
American Astronomical Society Meeting Abstracts #231
- Pub Date:
- January 2018
- Bibcode:
- 2018AAS...23114922U