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SEQUENCE:0
UID:UW-Physics-Event-8423
DTSTART:20230919T190000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T070207Z
LAST-MODIFIED:20230913T135452Z
LOCATION:Join Zoom Meeting https://berkeley.zoom.us/j/91230714547  Mee
 ting ID: 912 3071 4547
SUMMARY:New black hole mergers from a search pipeline for gravitationa
 l waves with higher-order harmonics \, Network in Neutrinos\, Nuclear 
 Astrophysics\, and Symmetries (N3AS) Seminar\, Jay Wadekar \, IAS\, Pr
 inceton
DESCRIPTION:Nearly all of the previous gravitational wave (GW) searche
 s in the LIGO-Virgo data include GW waveforms with only the dominant q
 uadrupole mode (l\,m)=(2\,2)\, i.e.\, omitting higher-order harmonics 
 such as (l\,m)=(3\,3)\,(4\,4) which are predicted by general relativit
 y. I will present detections of new black hole mergers in the LIGO-Vir
 go O3 data from a novel search pipeline that includes the higher-order
  harmonics. Some of the new detections are astrophysically interesting
  as the black holes occupy the upper mass gap and/or are in high-redsh
 ift (1<z<2) range. Towards the end\, I will change gears and present r
 esults from a new GW search for exotic objects with large tidal deform
 abilities (e.g.\, boson stars and black holes with axion clouds).<br>\
 n<br>\n
URL:https://www.physics.wisc.edu/events/?id=8423
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