Table 4.
Comparison of Swift J0243.6+6124 with other Be/X-ray binaries.
| X-ray | Optical | Spectral | Disk-loss | Porb | v sin i | Reference |
|---|---|---|---|---|---|---|
| source | counterpart | type | episodes | (days) | (km s−1) | |
| Swift J0243.6+6124 | – | O9.5V | No | 27.8 | 210 ± 20 | This work |
| 4U 0115+634 | V635 Cas | B0.2V | Yes | 24.3 | 300 ± 50 | 1 |
| RX J0146.9+6121 | LS I +61 235 | B1V | No | – | 200 ± 30 | 2 |
| V 0332+53 | BQ Cam | O8-9V | No | 34.2 | < 150 | 3 |
| X-Per | HD 24534 | O9.5III | Yes | 250 | 215 ± 10 | 4,5 |
| RX J0440.9+4431 | LS V +44 17 | B1III–V | Yes | 150 | 235 ± 15 | 6,7 |
| 1A 0535+262 | HD 245770 | O9.7III | Yes | 111 | 225 ± 10 | 8,9 |
| IGR J06074+2205 | – | B0.5IV | Yes | – | 260 ± 20 | 10 |
| RX J0812.4-3114 | LS 992 | B0.5III–V | Yes | 81.3 | 240 ± 20 | 11 |
| 1A 1118-615 | Hen 3-640 | O9.5IV | No | 24 | ∼300 | 12,13 |
| 4U 1145-619 | V801 Cen | B0.2III | No | 187 | 280 ± 30 | 14,15 |
| 4U 1258-61 | V850 Cen | B2V | Yes | 132 | < 600 | 16 |
| SAX J2103.5+4545 | – | B0V | Yes | 12.7 | 240 ± 20 | 17 |
| IGR J21343+4738 | – | B1IV | Yes | – | 365 ± 15 | 18 |
| SAX 2239.3+6116 | – | B0V | No | 262.6 | 195 ± 20 | 19 |
References. (1) Negueruela & Okazaki (2001); (2) Reig et al. (1997); (3) Negueruela et al. (1999); (4) Lyubimkov et al. (1997); (5) Delgado-Martí et al. (2001); (6) Reig et al. (2005); (7) Ferrigno et al. (2013); (8) Haigh et al. (2004); (9) Grundstrom et al. (2007); (10) Reig et al. (2010); (11) Reig et al. (2001); (12) Janot-Pacheco et al. (1981); (13) Staubert et al. (2011); (14) Janot Pacheco et al. (1982); (15) Alfonso-Garzón et al. (2017); (16) Parkes et al. (1980); (17) Reig et al. (2004); (18) Reig & Zezas (2014); (19) Reig et al. (2017).
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