Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Subjects astro-ph
Date Friday 29 November 2019
Time 11:30
Institute APC
Seminar Room Amphithéâtre Pierre Gilles de Gennes
Speaker's Last Name Cardoso
Speaker's First Name Vitor
Speaker's Email Address
Speaker's Institution CERN & Lisbon, CENTRA
Title Black holes as a physics laboratory
Abstract The LIGO/Virgo gravitational wave detections, the imaging of a black hole shadow by long- baseline radio interferometry, and ever more precise observations across all electromagnetic wavelengths have opened an unprecedented window onto gravity at its strongest. Black holes are the simplest, most compact, and physically elusive macroscopic objects in the Universe and play a central role in this new era in physics and astronomy. In this talk, I will describe how black holes can be used to understand foundational questions: are gravitons massless? Are black holes the simplest possible macroscopic objects? do event horizons and black holes really exist, or is their formation halted by some as-yet unknown mechanism? Do singularities arise in our universe as the outcome of violent collisions? Can black holes inform us about the nature of the elusive dark matter?
arXiv Preprint Number

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