Commissioning of FLAG: A phased array feed for the GBT [IMA]

http://arxiv.org/abs/1710.09650


Phased Array Feed (PAF) technology is the next major advancement in radio astronomy in terms of combining high sensitivity and large field of view. The Focal L-band Array for the Green Bank Telescope (FLAG) is one of the most sensitive PAFs developed so far. It consists of 19 dual-polarization elements mounted on a prime focus dewar resulting in seven beams on the sky. Its unprecedented system temperature of$\sim$17 K will lead to a 3 fold increase in pulsar survey speeds as compared to contemporary single pixel feeds. Early science observations were conducted in a recently concluded commissioning phase of the FLAG where we clearly demonstrated its science capabilities. We observed a selection of normal and millisecond pulsars and detected giant pulses from PSR B1937+21.

Read this paper on arXiv…

K. Rajwade, N. Pingel, R. Black, et. al.
Fri, 27 Oct 17
23/60

Comments: 2 pages, 3 figures, submitted for publication in the proceedings of IAU Symposium 337. Pulsar Astrophysics: The Next Fifty years