Panoramic SETI: Program Update and High-Energy Astrophysics Applications
J\'er\^ome Maire (1), Shelley A. Wright (1, 2), Jamie Holder (3),, David Anderson (4), Wystan Benbow (5), Aaron Brown (1), Maren Cosens (1 and, 2), Gregory Foote (3), William F. Hanlon (5), Olivier Hervet (6), Paul, Horowitz (7), Andrew W. Howard (8), Ryan Lee (4), Wei Liu (4

TL;DR
The PANOSETI project uses wide-field, fast optical transient detection to explore the fast time domain, achieving the first astrophysical gamma-ray detections from the Crab Nebula through coordinated observations with VERITAS.
Contribution
This work demonstrates the first detection of astrophysical gamma rays using the PANOSETI optical transient detection system in collaboration with VERITAS.
Findings
Detected three gamma-ray events from the Crab Nebula in the 15-50 TeV range.
Successfully synchronized telescopes with nanosecond precision using White Rabbit timing.
Validated PANOSETI's capability to detect high-energy astrophysical phenomena.
Abstract
Optical SETI (Search for Extraterrestrial Intelligence) instruments that can explore the very fast time domain, especially with large sky coverage, offer an opportunity for new discoveries that can complement multimessenger and time domain astrophysics. The Panoramic SETI experiment (PANOSETI) aims to observe optical transients with nanosecond to second duration over a wide field-of-view (2,500 sq.deg.) by using two assemblies of tens of telescopes to reject spurious signals by coincidence detection. Three PANOSETI telescopes, connected to a White Rabbit timing network used to synchronize clocks at the nanosecond level, have been deployed at Lick Observatory on two sites separated by a distance of 677 meters to distinguish nearby light sources (such as Cherenkov light from particle showers in the Earth's atmosphere) from astrophysical sources at large distances. In parallel…
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