Operating observatories around the globe target sky regions characterized by low contamination from Galactic radiation, looking for the imprint of Cosmological Gravitational Waves (CGWs) produced during Inflation, the mysterious phase of quasi-exponential expansion of space in the very early Universe. A new study by the POLARBEAR collaboration, led by SISSA for the part concerning the interpretation for Cosmology and published in the Astrophysical Journal, provides a new correction algorithm that allows researchers to almost double the amount of reliable data acquired in such observatories, thus giving access to uncharted territory of the signal produced from CGWs and bringing us closer to the Big Bang.
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Source: Phys.org