Topic: multimessenger astronomy

Ali Kheirandish reviews how high-energy neutrinos are reshaping multimessenger astronomy and searches for new particle physics. IceCube established the astrophysical neutrino signal in 2013; a decade of observations has since revealed directional structure, with emission identified from nearby active galaxies and a smaller contribution from the Milky Way. The seminar examines these measurements, the emerging account of where cosmic neutrinos originate, and opportunities to test physics beyond the Standard Model through the neutrino sector.

Fabian Walter presents the Deep Synoptic Array, a Nevada radio survey telescope within the Eric and Wendy Schmidt Observatory System, with major surveys planned from 2029. Operating across 0.7–2 GHz, its design combines inexpensive antennas and ambient-temperature receivers with a digital radio camera that produces images in real time. The programme targets approximately 31,000 square degrees at 500 nJy, aiming to detect a billion star-forming galaxies and active supermassive black holes while measuring neutral-hydrogen properties in millions of galaxies. Time-domain goals include roughly 100,