Table 1
Adopted observed properties of LMC X-3.
| j a | Parameter | Notation | Value (μj ± σj) | References |
|
|
||||
| Right ascension | RA (h:m:s) | 05:38:56.63 ± 0.05′′ | 3 | |
| Declination | Dec (d:m:s) | −64:05:03.29 ± 0.08′′ | 3 | |
| Distance | D (kpc) | 49.97 ± 1.30 | 4 | |
| Orbital period | Porb (days) | 1.7048089 | 1 | |
| Inclination | i (°) | 69.24 ± 0.727 | 1 | |
| Orbital separation | a (R⊙) | 13.13 ± 0.45 | 1 | |
| 1 | BH mass | MBH (M⊙) | 6.98 ± 0.56 | 1 |
| 2 | Mass ratio M1/M2 | q-1 | 1.93 ± 0.20 | 1 |
| Donor mass | M2 (M⊙) | 3.63 ± 0.57 | 1 | |
| 3 | Donor radius | R2 (R⊙) | 4.25 ± 0.24 | 1 |
| 4 | Donor surface gravity | log g2 (cgs) | 3.740 ± 0.020 | 1 |
| 5 | Donor effective temperature | Teff (k) | 15250 ± 250 k | 1 |
| BH spin | a∗ | 0.25 ± 0.12 | 2 | |
Notes. for details.
j is the index of the parameters that are used to estimate the likelihood that a calculated mass transfer is the progenitor of LMC X-3 given its current observed properties. See Sect. 3
Reference. (1) Orosz et al. (2014); (2) Steiner et al. (2014b); (3) Cui et al. (2002); (4) Pietrzyński et al. (2013).
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