Phased Subarray of the Low-Frequency Radio Telescope GURT as a Standalone Instrument for Radio Astronomy Studies
2020
Cutting edge astrophysical studies require more and more observing time at low-frequency radio telescopes, which is limited and quite expensive. Modern digital signal processing systems still unable to provide affordable computational and storage resources to allow simultaneous beamforming in a wide frequency range for multiple studies. Low-frequency radio telescopes of a new generation are very flexible and could be split into subarrays or groups of subarrays for some studies which do not require large antenna effective area and high directivity. In this paper we make a survey of astrophysical studies in the frequency range 8–80 MHz using a rather small part of the low-frequency radio telescope GURT - the subarray of 25 active antennas.
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