Jul 5 – 10, 2021
Europe/Rome timezone

No Detectable Kilonova Counterpart is expected for O3 neutron star-black hole candidates

Jul 5, 2021, 6:10 PM
Talk in the parallel session Explosive events associated with compact-object binary mergers Explosive Events Associated with Compact-Object Binary Mergers


Jinping Zhu (Peking University)


As the new era of GW-led multi-messenger astronomy is ushered in, one may especially expect to catch GW signals from neutron star-black hole (NSBH) mergers and search for associated as-yet undiscovered NSBH kilonova emissions. However, in spite of many efforts for follow-up searches of potential NSBH candidates during the third run (O3) of LIGO/Virgo Collaboration (LVC), no surely EM counterpart candidate was identified. In this talk, I will show our simulated NSBH kilonova luminosity function based on our NSBH kilonova models and analyze the detectability of kilonova emissions from cosmological NSBH populations for present and future follow-up telescopes. Furthermore, I will analyze the tidal disruption probability of potential NSBH merger GW events detected during the O3 of LVC and the detectability of kilonova emissions in connection with these events. Plausible explanations for the lack of NSBH associated kilonova detection during O3 will be given.

Primary authors

Jinping Zhu (Peking University) Bing Zhang (Department of Physics and Astronomy, University of Nevada) Shichao Wu (Department of Astronomy, Beijing Normal University) Yuan-Pei Yang (South-Western Institute for Astronomy Research, Yunnan University, Kunming) He Gao (Department of Astronomy, Beijing Normal University) Yun-Wei Yu (Institute of Astrophysics, Central China Normal University) Zhuo Li (Department of Astronomy, School of Physics, Peking University) Zhoujian Cao (Department of Astronomy, Beijing Normal University) Liang-Duan Liu (Department of Astronomy, Beijing Normal University) Yan Huang (School of Physics and Materials Science, Anhui University) Xing-Han Zhang (Department of Physics, Tsinghua University)

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