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Table 1:

Parameters of the star $\tau $ Boo and its planetary companion.

Parameter
Value Error Ref.
Star:      
Spectral type F7 IV-V   B97
$V~({\rm mag})$ 6.35   VF05
$d~ (\rm {pc})$ 15.60 0.17 VF05
$M_{\star}~({M_{\odot}})$ 1.33 0.11 VF05
$R_{\star}~({R_{\odot}})$ 1.31 0.06 G98
$P_{\rm {rot}}~({\rm d})$ 3.31   B97
$v \sin i~(\rm {km~s^{-1}})$ 14.9 0.5 H00
Age (Gyr) 1.3 0.4 VF05
Planet:      
$M_{\rm {p}} \sin i~({M_{\rm {Jup}}})$ 4.13 0.34 B06
$a~ (\rm {AU})$ 0.0481 0.0028 B06
e 0.023 0.015 B06
$K_{\star}~(\rm {km~s^{-1}})$ 0.4611 0.0076 B06
Orbital period (d) 3.31245 0.00003 L03
${ T_{\phi=0}}$ (JD) 2 451 653.968 0.015 L03

Notes. Abbreviations for the references are: B06 = Butler et al. (2006) and references therein, B97 = Baliunas et al. (1997), G98 = Gonzalez (1998), H00 = Henry et al. (2000), L89 = Latham et al. (1989), L03 = Leigh et al. (2003a), VF05 = Valenty & Fischer (2005).


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