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Table 1

GJ 581 parameters used for the analysis of the data.

Parameter Value Ref

Type M3 (Udry et al. 2007)
RA 15 19 26.825 (J2000) (Perryman et al. 1997)
Dec −07 43 20.21 (J2000) (Perryman et al. 1997)
μα −1224.55 mas/yr (Perryman et al. 1997)
μδ −99.52 mas/yr (Perryman et al. 1997)
distance 6.27 pc (Bonfils et al. 2005)
T eff 3190 K (von Paris et al. 2010)
3249 K (von Paris et al. 2010)
3760 K (von Paris et al. 2010)
Radius (0.29 ± 0.010) R (von Braun et al. 2011)

Notes. The position and proper motion parameters (μα, μδ) are taken from the Hipparcos catalog (GJ 581 is HIP 74995). Effective temperatures Teff are those estimated in von Paris et al. (2010). See references therein.

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