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Physics colloquium-“Multi-Messenger Astronomy & Astrophysics”
February 11 @ 4:00 pm
Colorado School of Mines, Physics Department
Abstract: Most of what we know from our Universe comes from the detection of electromagnetic radiation, from radio waves to high-energy gamma-rays. There are other cosmic messengers however. For decades, we have measured cosmic-rays and neutrinos originating from outside our atmosphere, even though source identification through cosmic-ray and/or neutrino astronomy has remained largely elusive. The fourth cosmic messenger, gravitational waves, has made an explosive entrance in the field in 2015 with almost routine observations of black hole and neutron star mergers ever since. Taken independently, each messenger provides its own window on the Universe, but observed together, they become an incredibly powerful tool to not only observe but also understand our Universe. In this colloquium, I will discuss advances in detecting cosmic-rays, neutrinos and gravitational waves, and recent discoveries with a special emphasis on the multi-messenger events, where more than one messenger were detected originating from the same source. Throughout, I will highlight the activities of the Mines subatomic group in the relevant topics.
Bio: Dr. Fred Sarazin is a Professor of Physics at the Colorado School of Mines. He got his PhD in France late in the last millennium. After two postdoctoral fellowships in the UK and Canada, he joined the Mines physics faculty in 2003. His areas of expertise are in experimental low-energy nuclear physics and cosmic-ray physics. When not on campus or traveling, Dr. Sarazin enjoys spending time with family and riding his mountain bike. He doesn’t like falling from it.