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Physics & Astronomy Colloquium
September 6 @ 3:30 pm - 5:00 pm
Speaker: Marcos Santander , The University of Alabama
Title: Messengers from the extreme universe
Abstract: High-energy astrophysical neutrinos and gravitational waves offer new opportunities to study some of the most violent phenomena in the Universe. The origin of cosmic rays, a century-old question in high-energy astrophysics, may be solved in the coming years if the sources of the astrophysical neutrino flux detected by the IceCube observatory are identified. Similarly, pinpointing electromagnetic counterparts for the gravitational waves discovered by LIGO may provide information about the nature of high-energy astrophysical transients. The combination of these new channels with electromagnetic observations, specially in the gamma-ray band, provides a powerful tool to answer these questions. In this talk I will present some of the scientific drivers for multimessenger astronomy and discuss the status and potential projects that can be pursued using current observatories, such as IceCube and VERITAS, and future facilities, such as the Cherenkov Telescope Array.