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Scientific Seminars

[Astro] The Renaissance of Astro-Physics: a landscape of opportunities in the era of Time Domain Multi-Messenger investigations

by Raffaella Margutti (Northwestern)

US/Central
https://fermipoint.fnal.gov/service/seminars/
Description

Abstract: Astronomical transients are signposts of catastrophic events in space where physics happens at conditions not testable on earth, including the most extreme stellar deaths, stellar tidal disruptions by supermassive black holes, and mergers of compact objects. Thanks to new and improved observational facilities we can now sample the night sky with unprecedented temporal cadence and sensitivity across the electromagnetic spectrum and beyond. This effort has led to the discovery of new types of astronomical transients, revolutionized our understanding of phenomena that we thought we already knew, and enabled the first insights into the physics of neutron star mergers with gravitational waves and light. In this talk I will review some very recent developments that resulted from our capability to acquire a truly panchromatic view of transient astrophysical phenomena. I will focus on two key areas of ignorance in the field: (i) What powers stellar explosions? (ii) What is the nature of the compact objects produced by these explosions and what happens when compact objects merge? The unique combination of Discovery Power (guaranteed by planned transient surveys like LSST, combined with efforts in the realm of artificial intelligence) and Understanding (enabled by modeling of multi-messenger observations) is what positions time-domain astrophysics for major advances in the near future.

Zoom: https://fermipoint.fnal.gov/service/seminars/