Optical and near-infrared stellar activity characterization of the early M dwarf Gl 205 with SOPHIE and SPIRou

Open Access

Table 1

Stellar parameters of Gl 205.

Parameter	Units	Value	References
RA	h m s	05 31 27.395785	1
Dec	d m s	−03 40 38.024004	1
Parallax	mas	175.31 ± 0.02	1
Distance	pc	5.7040 ± 0.0006	1
Spectral type		M1.5V	2
V	mag	7.968	3
B	mag	9.443	3
J	mag	4.83	4
K	mag	3.90	4
Mass	M_⊙	0.549 ± 0.029	5
Radius	R_⊙	0.556 ± 0.033	5
L_*	L_⊙	0.061 ± 0.006	6
Inclination	°	60 ± 10	7
v sin i	km s⁻¹	0.7 ± 0.1	This work
P_rot	days	34.4 ± 0.5	This work
log g	dex	4.70 ± 0.1	This work^(a)
T_eff, SOPHIE	K	3878 ± 81	This work^(b)
T_eff, SPIRou	K	3770 ± 30	This work^(a)
[Fe/H]	dex	0.21 ± 0.06	This work^(b)
[M/H]	dex	0.43 ± 0.1	This work^(a)
[α/Fe]	dex	−0.08 ± 0.04	This work^(a)
Age	Gyr		This work^(a)

Notes. ^(a)Derived from SPIRou spectra. ^(b)Derived from SOPHIE spectra.

References. (1) Gaia Collaboration (2020); (2) Kiraga & Stepien (2007); (3) Koen et al. (2010); (4) Ducati (2002); (5) Schweitzer et al. (2019); (6) Baraffe et al. (2015); (7) Hébrard et al. (2016).

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