Estimation of Solar Observations with the Five-hundred-meter Aperture Spherical Radio Telescope (FAST)

Abstract

We present the estimation of the solar observation with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). For both the quite Sun and the Sun with radio bursts, when pointing directly to the Sun, the total power received by FAST would be out of the safe operational range of the signal chain, even resulting in the damage to the receiver. As a conclusion, the Sun should be kept at least $\sim 2^{\circ }$ away from the main beam during the observing at $\sim 1.25\mathrm{GHz}$. The separation for lower frequency should be larger. For simplicity, the angular separation between the FAST beam and the Sun is suggested to be $\sim 5^{\circ }$ for observations on 200 MHz or higher bands.

arXiv comment5 pages, 2 figures. Accepted by RAA

References in corpus (8)

• LOFAR: The LOw-Frequency ARray
• The Five-Hundred-Meter Aperture Spherical Radio Telescope (FAST) Project
• The Fundamental Performance of FAST with 19-beam Receiver at L Band
• FAST: Its Scientific Achievements and Prospects
• Solar Physics with the Square Kilometre Array
• Quantifying weak non-thermal solar radio emission at low radio frequencies
• Imaging Spectroscopy of CME-Associated Solar Radio Bursts
• Ultra-Low Noise L-Band Cryogenic Astronomical Receiver for FAST Telescope