Real-Time Technosignature Strategies with SN 2023ixf

• Main Authors: Davenport, James R. A, Sheikh, Sofia Z, Farah, Wael, Nilipour, Andy, Cabrales, Bárbara, Croft, Steve, Pollak, Alexander W, Siemion, Andrew P. V
• Format: Journal Article
• Language: English
• Published: 05.06.2023
• Subjects: Physics - Instrumentation and Methods for Astrophysics; Physics - Popular Physics
• DOI: 10.48550/arxiv.2306.03118

Several technosignature techniques focus on historic events such as SN 1987A as the basis to search for coordinated signal broadcasts from extraterrestrial agents. The recently discovered SN 2023ixf in the spiral galaxy M101 is the nearest Type II supernova in over a decade, and will serve as an important benchmark event. Here we review the potential for SN 2023ixf to advance ongoing techonsignature searches, particularly signal-synchronization techniques such as the "SETI Ellipsoid". We find that more than 100 stars within 100 pc are already close to intersecting this SETI Ellipsoid, providing numerous targets for real-time monitoring within ~3$^\circ$ of SN 2023ixf. We are commencing a radio technosignature monitoring campaign of these targets with the Allen Telescope Array and the Green Bank Telescope.