Astro Seminar Series - VIA ZOOMExport this event to calendar

Wednesday, November 16, 2022 — 11:30 AM EST

Emery TrottEmery Trott is a Physics PhD candidate at the University of Michigan advised by Dragan Huterer. Emery is interested in tensions in the LCDM model of the Universe, and is currently working on how gravitational waves can inform us about the Hubble constant.

Talk title and abstract 

Dark Siren Gravitational Waves and the Hubble Constant

Gravitational waves produced by compact binary mergers are "standard sirens" whose distances can be combined with electromagnetic follow-up surveys to measure the Hubble constant. This powerful new probe will soon meaningfully weigh-in on the 5-sigma Hubble tension, and on possible extensions of Lambda-CDM cosmology. A major complicating factor is that over 95% of these events do not actually have identifiable electromagnetic counterparts, and are therefore considered "dark sirens". This talk will touch on the current state of gravitational wave cosmology and address the methods for extracting reliable information on the Hubble constant from dark sirens.

<--break->This will be a hybrid seminar. If you would like to join in person, please meet in the Physics building (Room 308). Would you like to join this seminar via Zoom?  Please email WCA.

Location 
PHY - Physics
Virtual Meeting
200 University Avenue West

Waterloo, N2L 3G1
Canada

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