June 10, 2016 8-10PM
Event Type:
Lecture and Stargazing
Title: Black Holes Don’t Suck
Lecturer: Chiara Mingarelli
Position: Postdoctoral Fellow
Institution: Caltech
Abstract:
Black holes have gained notoriety as dangerous cosmic vacuum cleaners —
sucking up everything in their path. I will dispel this myth by guiding you
through the weird and wonderful world of black holes. We will learn how to
detect a black hole using several techniques: by using the motion of their
companion stars to infer the black hole’s presence, or by finding gas that
heats up and shines as it falls onto the black hole. But what if there are no
stars or gas nearby? We can “listen” to the black holes by searching for
gravitational waves — ripples in the fabric of spacetime. After this tour of
the black hole landscape, hopefully you will agree that black holes don’t suck!