Table 1: Astrophysical parameters of HD 76534. $v_{\rm rad}$ is measured in the heliocentric rest frame.
Spectral Type B2.5 (3)

$T_{\rm eff}$ (K) $20~000\pm1000$ (1)

logg 4.0 (1)

Log $L_{\ast}$ ( $L_{\odot}$ ) 2.83 (1)

$R_{\ast}$ ( $R_{\odot}$ ) 2.16 (1)

$M_{\ast}$ ( $M_{\odot}$ ) $\geq$ 5 (2)

v sin i (km s^-1) $110\pm10$ (1)

$A_{\rm v}$ (m) 0.80 (3)

Age (Myr) $\geq$ 0.5 (2)

$v_{\rm rad}$ (km s^-1) +17 (4)

**Table 1:** Astrophysical parameters of HD 76534. $v_{\rm rad}$ is measured in the heliocentric rest frame.
Spectral Type	B2.5	(3)
$T_{\rm eff}$ (K)	$20~000\pm1000$	(1)
logg	4.0	(1)
Log $L_{\ast}$ ( $L_{\odot}$ )	2.83	(1)
$R_{\ast}$ ( $R_{\odot}$ )	2.16	(1)
$M_{\ast}$ ( $M_{\odot}$ )	$\geq$ 5	(2)
v sin i (km s^-1)	$110\pm10$	(1)
$A_{\rm v}$ (m)	0.80	(3)
Age (Myr)	$\geq$ 0.5	(2)
$v_{\rm rad}$ (km s^-1)	+17	(4)

(1) This work; (2) Dr. L. Testi (private communication);
(3) Valenti et al. (2000); (4) Finkenzeller & Jankovics (1984).

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