Physics Colloquium: ‘Multi-Messenger Astronomy and Astrophysics’
October 29 @ 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.