PoS - Proceedings of Science
Volume 277 - MeerKAT Science: On the Pathway to the SKA (MeerKAT2016) - MeerKAT Science beyond Surveys
All-sky radio SETI
M. Garrett*, A. Siemion and W. Vancapellen
Full text: pdf
Published on: February 01, 2018
Over the last decade, Aperture Arrays (AA) have successfully replaced parabolic dishes as the technology of choice at low radio frequencies – good examples are the MWA, LWA and LOFAR. Aperture Array based telescopes present several advantages, including sensitivity to the sky over a very wide field-of-view. As digital and data processing systems continue to advance, an all-sky capability is set to emerge, even at GHz frequencies. We argue that assuming SETI events are both rare and transitory in nature, an instrument with a large field-of- view, operating around the so-called “water-hole” (~ 1-2 GHz), might offer several advantages over contemporary searches. Sir Arthur C. Clarke was the first to recognise the potential importance of an “all-sky” radio SETI capability, as presented in his book, Imperial Earth. As part of the global SKA (Square Kilometre Array) project, a Mid-Frequency Aperture Array (MFAA) prototype known as MANTIS (Mid-Frequency Aperture Array Transient and Intensity-Mapping System) is now being considered as a precursor for SKA-2. MANTIS can be seen as a first step towards an “all-sky” radio SETI capability at GHz frequencies. This development has the potential to transform the field of SETI research, in addition to several other scientific programmes.
DOI: https://doi.org/10.22323/1.277.0020
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