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UID:10435379-1771592400-1771596000@uwm.edu
SUMMARY:CGCA Seminar - Debatri Chattopadhyay
DESCRIPTION:Neutron Star–Black Hole Binaries: Predictions and Observations\nDebatri Chattopadhyay\nNorthwestern University \nNeutron star–black hole (NS–BH) binaries have emerged as key targets for multi-messenger astrophysics following the first gravitational wave detections of such systems. In this talk\, I present population synthesis predictions for the Galactic NS–BH population\, models that interpret the first observed mergers\, and forecasts for future radio\, gravitational-wave\, and electromagnetic discoveries. Using binary evolution simulations\, we predict tens – hundreds of NS–BH systems in the Milky Way\, albeit very few of which should be detectable as pulsar–black hole binaries with next-generation radio facilities and as low-frequency gravitational-wave sources. Modelling of the first NS–BH merger events indicates consistency with low-metallicity progenitors and low black hole natal spins\, implying that most mergers may produce weak or absent electromagnetic counterparts. I further show how upcoming surveys and detectors will enable joint radio and gravitational wave observations\, and how kilonova searches can constrain neutron star structure in a subset of systems. These results place NS–BH binaries in a broader context of neutron star binary evolution and highlight their role as laboratories for testing compact object formation\, binary evolution\, and multi-messenger astrophysics in the coming decade.
URL:https://uwm.edu/physics/event/cgca-seminar-debatri-chattopadhyay/
LOCATION:Kenwood IRC 2175\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:CGCA Seminars
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