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SUMMARY:Towards Global EMRI Search with the f-Function
DTSTART;VALUE=DATE-TIME:20260708T043000Z
DTEND;VALUE=DATE-TIME:20260708T044500Z
DTSTAMP;VALUE=DATE-TIME:20261027T061130Z
UID:indico-contribution-816@indico.narit.or.th
DESCRIPTION:Speakers: Davendra Hassan (National University of Singapore)\n
 The Laser Interferometer Space Antenna (LISA) will open a new observationa
 l window into the millihertz gravitational wave sky\, enabling observation
 s of sources previously inaccessible to ground-based detectors. One of the
  most anticipated is the detection of Extreme Mass Ratio Inspiral (EMRI) s
 ystems\, in which a stellar-mass compact object completes at least tens of
  thousands of orbits around a massive black hole before plunging. The resu
 lting gravitational waveforms carry rich harmonic structure that enables p
 recision studies of black holes and further tests of general relativity.\n
   \n However\, EMRIs pose a persistent search challenge: the likelihood su
 rface is plagued with non-local degeneracies\, in which physically distinc
 t sources can produce nearly identical waveforms\, causing standard search
  algorithms (such as MCMC) to converge on misleading solutions far from th
 e true parameters. In this work\, we investigate the f-function introduced
  by Chua (2022) as an alternative objective function for EMRI searches\, d
 esigned to exponentially suppress these false solutions. We report results
  that show convergence near the injected parameters for a near-threshold 2
 -year EMRI signal searched over a shorter window.\n\nhttps://indico.narit.
 or.th/event/236/contributions/816/
LOCATION:National Astronomical Research Institute of Thailand (NARIT) Andr
 omeda Meeting Room
URL:https://indico.narit.or.th/event/236/contributions/816/
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