Table 3.
Fraction of simulated merger offsets below the observed offset for GRB 211211A and 230307A, for various combinations of compact binary and natal kick.
| f(rmerge < rgrb) | |||
|---|---|---|---|
| Binaries | Kicks | GRB211211A | GRB230307A |
| WDNS | Verbunt | 0.63 | 0.94 |
| BNS | Verbunt | 0.52 | 0.84 |
| WDNS | Hobbs | 0.39 | 0.85 |
| BNS | Hobbs | 0.34 | 0.74 |
| WDNS | Bray | 0.85 | 0.99 |
| BNS | Bray | 0.71 | 0.57 |
Notes. If greater than 95% of the population are merging within the observed offset, we disfavour the model, although this only occurs for GRB 230307A and the WDNS+Bray combination.
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