Are Electron capture supernovae the primary source of low-velocity neutron stars?

Electron capture supernovae (ECSNe) are considered the main source of low-velocity neutron stars, which in turn are important for the formation of double neutron star systems. I will review recent work  suggesting that a large fraction of ECSNe may produce thermonuclear explosions instead of neutron stars. I will then discuss how a subset of core-collapse supernovae with subsonic ejecta may serve as an alternative source of low-velocity neutron stars and highly-asymmetric BH/BH and NS/BH mergers, such as those recently seen by LIGO/Virgo.

John Antoniadis (FORTH)
Join Zoom Meeting Meeting ID: 891 0125 5446 Passcode: 709491
Lijing Shao
Thursday, October 27, 2022 - 3:30PM to Thursday, October 27, 2022 - 4:30PM
John Antoniadis obtained his PhD degree in Astrophysics from the University of Bonn in 2013. Then he worked as a Dunlap Fellow at the University of Toronto in Canada before moving to Bonn in 2017 as Scientific Staff at the Max-Planck Institute for Radio Astronomy and Lecturer at the University of Bonn. In 2020, he joined the newly founded FORTH Institute of Astrophysics in Crete as Scientific Staff. He is the leader of the Stellar Afterlife and Transients Group, funded by the European Commission and the Stavros Niarchos Foundation. John’s main interests include the formation of compact objects and gravitational wave sources and pulsar timing arrays.