Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a planetary companion

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Table 1

Parameters of BD+20 1790 and the planet candidate.

Parameter	Value	Reference

Spectral type	K5 V	(a)
B − V	1.15
M(M_⊙)	0.63 ± 0.09	(b)
T_eff	4410 K	(b, c)
log g	4.53 ± 0.17	(b)
EW(Li)	110 ± 3 mÅ	(b)
Distance	25.4 ± 4 pc	(d)
Age	35−80 Myr	(e)
v sin i	10.03 ± 0.47 km s^-1	(b, f)
P_phot	2.801 ± 0.001 days	(b)
i	50.41 degrees	(b)
R	0.71 ± 0.03 R_⊙	(b)
[Fe / H]	0.30 ± 0.20	(b)
L_X	1.6 ± 0.5 10²⁹ erg s^-1	(b)
L(L_⊙)	0.17 ± 0.04	(b)
	–3.7	(g)

Reference. (a) Jeffries (1995); (b) Hernán-Obispo et al. (2010); (c) McCarthy & White (2012); (d) Reid et al. (2004); (e) López-Santiago et al. (2006); (f) López-Santiago et al. (2010); (g) This work.

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