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Astrophysics, Relativity, and Cosmology Seminar - Kristen Schumacher (UIUC) "Better early than never: Testing GR with GW Polarizations"

Event Type
Seminar/Symposium
Sponsor
Department of Physics
Location
Loomis 464
Virtual
wifi event
Date
Sep 18, 2024   12:00 pm  
Speaker
Kristen Schumacher
Contact
Deanna Frye
E-Mail
ddebord@illinois.edu
Views
13
Originating Calendar
Physics - Astrophysics, Relativity, and Cosmology Seminar

In addition to the two polarization modes present in general relativity, some modified theories of gravity may contain up to four additional polarizations, which are allowed to travel at different speeds. Detecting these additional modes would be evidence of new physics, but disentangling these modes from those in general relativity requires more than two detectors. In this talk, we discuss a new observational signature of additional, superluminal polarizations that can be searched for with currently available detectors. We here describe this signature and how to search for it in current and future data. 

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