A team of scientists from Bengaluru’s Raman Research Institute has been sent to the Arctic Circle for a research expedition. The four-member team, which is led by Girish B S of RRI’S Electronics Engineering Group, will be working in the vicinity of the Himadri research station, located in Norway’s Svalbard archipelago.
The mission, which was flagged off from Delhi on Monday, is set to last until January 15, under the aegis of the Ministry of Earth Sciences. The mission will seek to deploy instruments near Himadri to study radio signals in the 5 to 500 megahertz range. It will assess whether Svalbard is “radio-quiet” enough to deploy Shaped Antenna measurement of the background Radio Spectrum (SARAS) radio telescopes.
The radio telescopes are used in the study of the ‘cosmic dawn’, an era in the development of the universe which saw the formation of the first stars and galaxies.
According to a statement from the RRI, these ancient signals are easily drowned out by modern cell phone towers and other interference.
Girish B S stated that due to rampant urbanisation in recent years, the space for the deployment of scientific experiments for cosmological studies is fast shrinking. “Several places, where low frequency astronomical observations were conducted in the past, are no longer suitable for carrying out precision measurements. And the biggest limitation in achieving the required sensitivity is RFI (radio frequency interference),” he said.
SARAS has previously been deployed in remote parts of Karnataka and Ladakh.
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