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SUMMARY:Compact binaries and the gravitational self-force - Adam Pound (So
 uthampton)
DTSTART:20190222T130000Z
DTEND:20190222T140000Z
UID:TALK115879@talks.cam.ac.uk
CONTACT:Nathan Johnson-McDaniel
DESCRIPTION:Recent observations of gravitational waves\, and all we have l
 earned from them\, represent a remarkable success of our theoretical model
 s of relativistic binaries. However\, accurate models are largely restrict
 ed to binaries in which the two members have roughly equal masses\; for bi
 naries with more disparate masses\, modelling is less mature. This is espe
 cially relevant for extreme-mass-ratio inspirals (EMRIs)\, in which a stel
 lar-mass object orbits a supermassive black hole in a galactic core.&nbsp\
 ;EMRIs&nbsp\;are uniquely precise probes of black hole spacetimes\, and th
 ey will be key targets for the space-based detector&nbsp\;LISA. They are b
 est modelled by gravitational self-force theory\, in which the smaller obj
 ect generates a small gravitational perturbation that reacts back on it to
  exert a "self-force". In this talk\, I discuss the foundations of self-fo
 rce theory and its application to&nbsp\;EMRIs&nbsp\;(along with\, surprisi
 ngly\, less extreme compact binaries).
LOCATION:Pavilion B Potter Room (B1.19)
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