Space Sciences

A radio technosignature search towards Proxima Centauri resulting in a signal of interest

S. Smith, D. C. Price, et al.

Uncover the mystery of BLC1, a fascinating narrowband signal detected at -982 MHz during observations of Proxima Centauri by a dedicated team of researchers including Shane Smith and Danny C. Price. While initially suggesting technosignatures, this unusual signal was ultimately traced back to local interference. Join the exploration of this sensitive hunt for radio signals from another star!

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Abstract

This paper reports on the detection of a narrowband signal of interest at -982 MHz, recorded during observations towards Proxima Centauri with the Parkes Murriyang radio telescope. This signal, BLC1, has characteristics broadly consistent with hypothesized technosignatures and is one of the most compelling candidates to date. Analysis ultimately attributes BLC1 to being an unusual but locally generated form of interference, detailed in a companion paper. The observations of Proxima Centauri represent a particularly sensitive search for radio technosignatures towards a stellar target.

Publisher

Nature Astronomy

Published On

Nov 01, 2021

Authors

Shane Smith, Danny C. Price, Sofia Z. Sheikh, Daniel J. Czech, Steve Croft, David DeBoer, Vishal Gajjar, Howard Isaacson, Brian C. Lacki, Matt Lebofsky, David H. E. MacMahon, Cherry Ng, Karen I. Perez, Andrew P. V. Siemion, Claire Isabel Webb, Jamie Drew, S. Pete Worden, Andrew Zic

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