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- Volume 93 - Année 2024
- No 3 - 41st Liège International Astrophysical Coll...
- Compact Objects with Wolf–Rayet Companions: a Key Binary Configuration to Produce Gravitational Wave Mergers
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Compact Objects with Wolf–Rayet Companions: a Key Binary Configuration to Produce Gravitational Wave Mergers
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The properties of binaries hosting a Wolf–Rayet star and a compact object (black hole or neutron star) suggest that such systems could be the progenitors of binary compact objects merging via gravitational wave emission. We used the population-synthesis code SEVN to explore this possibility and account for current uncertainties in theoretical models. According to our simulations, most (more than about 83%) binary compact object mergers were once compact objects with Wolf–Rayet companions. Binaries like Cyg X-3, the only candidate hosting a Wolf–Rayet and a compact object observed in the Milky Way, are more likely (approximately 70%–100%) to become binary compact object mergers if they host a black hole. This work indicates that further characterization of systems like Cyg X-3 can unveil the formation mechanisms of binary compact object mergers.
This work is distributed under the Creative Commons CC BY 4.0 Licence.
Paper presented at the 41st Liège International Astrophysical Colloquium on “The eventful life of massive star multiples,” University of Liège (Belgium), 15–19 July 2024.
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Om dit artikel te citeren:
Over : Erika Korb
INFN – Padova, Via Marzolo 8, I–35131 Padova, Italy
Institut für Theoretische Astrophysik, ZAH, Universität Heidelberg, Albert-Ueberle-Straße 2, D–69120 Heidelberg, Germany
email: erika.korb@studenti.unipd.it