HADES RV Programme with HARPS-N at TNG - VI. GJ 3942 b behind dominant activity signals

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Table 1

Stellar parameters of GJ 3942.

RA	16h:09m:3.14s	(1)
Dec	+52°:56′:37.9′′	(1)

Spectral type	M0	(2)
Distance	16.93 ± 0.30 pc	(1)
M	0.63 ± 0.07 M_⊙	(2)
R	0.61 ± 0.06 R_⊙	(2)
T _eff	3867 ± 69 K	(2)
log g	4.65 ± 0.06	(2)
[Fe/H]	−0.04 ± 0.09	(2)
	4.55 ± 0.05	(3)

log L/L_⊙	−1.12 ± 0.10	(2)
log L_X	27.4 erg s^-1	(4)
B	11.59 ± 0.10 mag	(5)
V	10.25 ± 0.04 mag	(5)
R	9.4 mag	(6)
I	8.7 mag	(7)
J	7.185 ± 0.020 mag	(8)
H	6.525 ± 0.020 mag	(8)
K	6.331 ± 0.018 mag	(8)

π	58.95 ± 0.25 mas	(9)
μ _α	+204.16 ± 0.09 mas yr^-1	(9)
μ _δ	+62.00 ± 0.10 mas yr^-1	(9)
dv/ dt	1.8 ± 1.5 cm s^-1 yr^-1	(10)
vsini	1.67 ± 0.30 km s^-1	(2)
U	−0.47 km s^-1	(2)
V	−0.89 km s^-1	(2)
W	−25.31 km s^-1	(2)

Inner HZ	0.29 AU, 73 days	(11)
Outer HZ	0.55 AU, 187 days	(11)

Reference.

⁽¹⁾

van Leeuwen (2007);

⁽²⁾

Maldonado et al. (2017);

⁽³⁾

following Suárez Mascareño et al. (2015);

⁽⁴⁾

Hünsch et al. (1999);

⁽⁵⁾

Høg et al. (2000);

⁽⁶⁾

Zacharias et al. (2012);

⁽⁷⁾

Monet et al. (2003);

⁽⁸⁾

Cutri et al. (2003);

⁽⁹⁾

Gaia Collaboration (2016);

⁽¹⁰⁾

secular acceleration following Montet et al. (2014);

⁽¹¹⁾

habitable zones (HZ) following Kopparapu et al. (2013).

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