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SUMMARY:Miren Radia (DAMTP\, Cambridge U.)
DTSTART:20210429T133000Z
DTEND:20210429T143000Z
DTSTAMP:20260423T035727Z
UID:CENTRA/39
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CENTRA/39/">
 Anomalies in the gravitational recoil of eccentric black-hole mergers with
  unequal mass ratios</a>\nby Miren Radia (DAMTP\, Cambridge U.) as part of
  CENTRA Seminar\n\n\nAbstract\nThe radiation of linear momentum imparts a 
 recoil (or "kick") to the center of mass of a merging black hole binary sy
 stem. In 2019\, numerical relativity calculations showed that the addition
  of orbital eccentricity can lead to an approximate 25% increase in recoil
  velocities for equal-mass\, spinning binaries with spins lying in the orb
 ital plane ("superkick" configurations) [arXiv:1910.01598]. I will present
  recent results [arXiv:2101.11015] obtained from numerical simulations inv
 estigating the impact of nonzero eccentricity on the kick magnitude and gr
 avitational-wave emission of nonspinning\, unequal-mass black hole binarie
 s. Like the spinning case\, nonzero eccentricities at merger can lead to k
 icks which are larger by up to ~25% relative to the quasicircular case. Ho
 wever\, we also find that the kick velocity has an oscillatory dependence 
 on the eccentricity. I will discuss our interpretation of this phenomenon 
 and our observations.\n
LOCATION:https://researchseminars.org/talk/CENTRA/39/
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