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A radio technosignature search towards Proxima Centauri resulting in a signal-of-interest
Shane Smith, Danny C Price, Sofia Z Sheikh +15
The detection of life beyond Earth is an ongoing scientific endeavour, with profound implications. One approach, known as the search for extraterrestrial intelligence (SETI), seeks…
Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework
Sofia Z. Sheikh, Shane Smith, Danny C. Price +15
The aim of the search for extraterrestrial intelligence (SETI) is to find technologically-capable life beyond Earth through their technosignatures. On 2019 April 29, the Breakthrou…
Luminous Millimeter, Radio, and X-ray Emission from ZTF20acigmel (AT2020xnd)
Anna Y. Q. Ho, Ben Margalit, Michael Bremer +7
Observations of the extragalactic () transient AT2018cow established a new class of energetic explosions shocking a dense medium, which produce luminous emission at milli…
Discovery of ASKAP J173608.2-321635 as a Highly-Polarized Transient Point Source with the Australian SKA Pathfinder
Ziteng Wang, David L. Kaplan, Tara Murphy +18
We report the discovery of a highly-polarized, highly-variable, steep-spectrum radio source, ASKAP J173608.2-321635, located 4\,deg from the Galactic center in the Galactic p…
On the evidence for a common-spectrum process in the search for the nanohertz gravitational-wave background with the Parkes Pulsar Timing Array
Boris Goncharov, R. M. Shannon, D. J. Reardon +26
A nanohertz-frequency stochastic gravitational-wave background can potentially be detected through the precise timing of an array of millisecond pulsars. This background produces l…
Discovery of an Extremely Short Duration Flare from Proxima Centauri Using Millimeter through FUV Observations
Meredith A. MacGregor, Alycia J. Weinberger, R. O. Parke Loyd +17
We present the discovery of an extreme flaring event from Proxima Cen by ASKAP, ALMA, HST, TESS, and the du Pont Telescope that occurred on 2019 May 1. In the millimeter and FUV, t…
A circular polarisation survey for radio stars with the Australian SKA Pathfinder
Joshua Pritchard, Tara Murphy, Andrew Zic +14
We present results from a circular polarisation survey for radio stars in the Rapid ASKAP Continuum Survey (RACS). RACS is a survey of the entire sky south of being c…