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Table 1

Velocity of the stellar wind, calculated with a β-law equation: , with the value β = 0.8 (Lamers & Cassinelli 1999), at the site of the NS.

Companion

Spectral type B1Ia Reig et al. (1996)
Teff (K) 24 000 ± 3000 Reig et al. (1996)
Radius (R) 37 ± 15 Reig et al. (1996)
Mass (M) 16 ± 5 Reig et al. (1996)

System

M V − 7 ± 1 Reig et al. (1996)
d (kpc) 7 ± 3 Reig et al. (1996)
vsini 96 ± 20 Reig et al. (1996)
E(BV) 1.24 ± 0.02 Reig et al. (1996)
BC − 2.3 ± 0.3 Reig et al. (1996)
M bol − 9.3 ± 1 Reig et al. (1996)
LX( × 1036 erg s-1) This work
Porb (days) 11.6 ± 0.1 Grundstrom et al. (2007)
Psuperorb (days) 30.7 ± 0.1 Farrell et al. (2006)
Ppulse (s) 9350 ± 160 This work
v (km s-1) 1200 Reig et al. (1996)
vwind (km s-1) 500 ± 80
vorb (km s-1) 244 ± 24
vrel (km s-1) 560 ± 70
a (R) 1.51 ± 0.16
RBondi( × 1011 cm) 1.2 ± 0.3

Notes. R refers to the donor star radius.

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