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SUMMARY:Sequential Black-Hole Mergers in Hierarchical Triples
DTSTART:20261030T130000Z
DTEND:20261030T143000Z
DTSTAMP:20261020T224900Z
UID:indico-event-542@indico.tpi.uni-jena.de
DESCRIPTION:Speakers: Felix Heinze\n\nTwo black-hole merger events with co
 mpatible first-merger remnant and second-merger component masses and overl
 apping spatial localizations may originate from sequential mergers in a pr
 e-existing hierarchical black-hole triple. In this scenario\, the inner bi
 nary merges first\, leaving a remnant that remains bound to the tertiary a
 nd subsequently undergoes a second merger. We discuss potential hierarchic
 al-merger pairs proposed in the literature and present a method to constra
 in the progenitor triple’s outer orbit by modeling the gravitational-wav
 e-driven evolution of the remnant-tertiary binary using Peters’ equation
 s.  Given an assumed upper bound on the recoil velocity of the first merg
 er\, the method requires only the black-hole masses\, the time delay betwe
 en the mergers\, and the eccentricity at a reference frequency — quantit
 ies that can be inferred from the merger events themselves.\nIf time permi
 ts\, we can also shortly discuss recently developed physics-informed machi
 ne-learning methods for solving the Hamilton constraint equation in the la
 st part of the seminar. \n\nhttps://indico.tpi.uni-jena.de/event/542/
LOCATION:Abbeanum/1- SR 102 (TPI\, FSU Jena)
URL:https://indico.tpi.uni-jena.de/event/542/
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