Vol 20, No 4

FRB 171019: an event of binary neutron star merger?

Jin-Chen Jiang, Wei-Yang Wang, Rui Luo, Shuang Du, Xuelei Chen, Ke-Jia Lee, Ren-Xin Xu


Abstract The fast radio burst, FRB 171019, was relatively bright when discovered first by ASKAP but was identified as a repeater with three faint bursts detected later by GBT and CHIME. These observations lead to the discussion of whether the first bright burst shares the same mechanism with the following repeating bursts. A model of binary neutron star merger is proposed for FRB 171019, in which the first bright burst occurred during the merger event, while the subsequent repeating bursts are starquake-induced, and generally fainter, as the energy release rate for the starquakes can hardly exceed that of the catastrophic merger event. This scenario is consistent with the observation that no later burst detected is as bright as the first one.


Keywords pulsars: general — stars: neutron — dense matter — gravitational waves

Full Text

  • There are currently no refbacks.