Table 2.
Change of the final orbital separation af relative to the post-CE distance of the binary ai and ratio of merging time by GW emission Tmerge and the Hubble time (THubble = 13.787 Gyr, Planck Collaboration VI 2020) for possible post-CE evolutionary pathways.
| BH | NS | |||
|---|---|---|---|---|
| af/ai | Tmerge/THubble | af/ai | Tmerge/THubble | |
| post-CE | 1.0 | 1.7 × 102 | 1.0 | 2.4 × 101 |
| MT | 1.77 | 3.1 × 103 | 0.72 | 1.3 × 101 |
| CBD | 0.45 | 2.7 × 100 | 0.25 | 3.1 × 10−2 |
| SN (no kicks) | 1.31 | 1.1 × 103 | 2.19 | 5.1 × 102 |
| CBD+MT | 0.72 | 3.0 × 101 | 0.12 | 3.6 × 10−3 |
Notes. The presented scenarios are: MT episode, CBD interaction and SN event without kick (SN) as in Moreno et al. (2022) (see Sect. 3.5) for example. We also show various concatenations of evolutionary events and chain their labels together with a “+”. We note that for the chained events, the output of the previous event is taken into account. We refer to the text in Sect. 3.5 for the detailed parameter considerations for the individual calculations.
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