Gliese 49: activity evolution and detection of a super-Earth - A HADES and CARMENES collaboration

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Table 1

Basic parameters of Gliese 49 (BD+61 195, Karm J01026+623).

Parameter	Value	References
α (J2000)	01h 02m 40.5s	(1)
δ (J2000)	+62° 20′ 44′′	(1)
Sp. type	M1.5 V	(2, 3)
d	9.856±0.003 pc	(1)
M	0.515±0.019 M_⊙	(4)
R	0.511±0.018 R_⊙	(4)
T_eff	3805±51 K	(4)
L_bol	0.04938±0.00090 L_⊙	(4)
log g	4.69±0.07 dex	(4)
[Fe/H]	0.13±0.16	(4)
	−4.83±0.03 dex	(5)
pEW(Hα)	−0.044±0.087 Å	(6)
log L_X∕L_bol	−4.70±0.09 dex	(7)
V	9.56±0.02 mag	(8)
G	8.66 mag	(1)
J	6.230±0.021 mag	(9)
μ_α cos δ	+731.134±0.041 mas a⁻¹	(1)
μ_δ	+90.690±0.048 mas a⁻¹	(1)
V_r	−5.777±0.066 km s⁻¹	(10)
dv/dt	12.304±0.004 cm s⁻¹ a⁻¹	(1)
P_rot	18.4±0.7 d, 19.9±0.4 d	(5, 11)
v sin i	<2 km s⁻¹	(12)
HZ	0.18–0.49 au, 39–172 d	(13)

References. ⁽¹⁾Gaia Collaboration (2018), ⁽²⁾Alonso-Floriano et al. (2015), ⁽³⁾Maldonado et al. (2017), ⁽⁴⁾Schweitzer et al. (2019), ⁽⁵⁾Suárez Mascareño et al. (2018), ⁽⁶⁾Schöfer et al. (2019), ⁽⁷⁾González-Álvarez et al. (2019), ⁽⁸⁾Høg et al. (1998), ⁽⁹⁾Skrutskie et al. (2006), ⁽¹⁰⁾this work, ⁽¹¹⁾Díez Alonso et al. (2019), ⁽¹²⁾Reiners et al. (2018b), ⁽¹³⁾recent Venus/early Mars habitable zones (HZ) following Kopparapu et al. (2013).

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