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SUMMARY:Twin Peak: the dual nature of low-mass black hole binaries
DTSTART:20260506T110000Z
DTEND:20260506T120000Z
DTSTAMP:20260507T042200Z
UID:indico-event-2556@indico.ifae.es
DESCRIPTION:Speakers: Jam Sadiq\n\nI will give a brief overview of recent 
 work on the low-mass binary black hole (BBH) population observed in gravit
 ational waves. A central challenge in this field is disentangling contribu
 tions from multiple formation channels\, which overlap heavily in observab
 le parameter space. I will explain the iterative KDE (Kernel Density Estim
 ation) method and how we apply it to the latest LIGO-Virgo-KAGRA data thro
 ugh O4a to resolve two distinct sub-populations within the BBH merger rate
  peak at component masses of roughly 7-12 solar masses. One sub-population
  has a binary mass of ~16-20 solar masses with isotropically oriented spin
 s of magnitude ~0.1\, consistent with dynamical formation in dense stellar
  clusters. The other has a binary mass of ~18-22 solar masses with prefere
 ntially orbit-aligned spins of ~0.15\, consistent with isolated binary evo
 lution. I will discuss the implication of this results and possible future
  work with more observations of gravitational waves.\n\nhttps://indico.ifa
 e.es/event/2556/
LOCATION:IFAE Seminar Room (In-person)
URL:https://indico.ifae.es/event/2556/
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