Gaia FGK benchmark stars: Effective temperatures and surface gravities

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Table 10

Fundamental T_eff and log g values and their uncertainties (absolute, u, and in percent, %u) for Gaia FGK benchmark stars.

Name	T_eff	u(T_eff)	%u(T_eff)	log g	u(log g)
	[K]			[cm s^-2]

F dwarfs
Procyon	6554	84	1.28	4.00	0.02
HD 84937	6356	97	1.52	4.06	0.04
HD 49933	6635	91	1.38	4.20	0.03

FGK subgiants
δ Eri	4954	30	0.61	3.76	0.02
HD 140283	[5522]	[105]	[1.91]	3.58	0.11
ϵ For	5123	78	1.53	[3.52]	[0.08]
η Boo	6099	28	0.45	3.79	0.02
β Hyi	5873	45	0.77	3.98	0.02

G dwarfs
α Cen A	5792	16	0.27	4.31	0.01
HD 22879	5868	89	1.52	4.27	0.04
Sun	5771	1	0.01	4.4380	0.0002
μ Cas	5308	29	0.54	[4.41]	[0.06]
τ Cet	5414	21	0.39	[4.49]	[0.02]
α Cen B	5231	20	0.38	4.53	0.03
18 Sco	5810	80	1.38	4.44	0.03
μ Ara	[5902]	[66]	[1.12]	4.30	0.03
β Vir	6083	41	0.68	4.10	0.02

FGK giants
Arcturus	4286	35	0.82	[1.64]	[0.09]
HD 122563	4587	60	1.31	1.61	0.07
μ Leo	4474	60	1.34	2.51	0.11
β Gem	4858	60	1.23	2.90	0.08
ϵ Vir	4983	61	1.21	2.77	0.02
ξ Hya	5044	40	0.78	2.87	0.02
HD 107328	4496	59	1.32	2.09	0.13
HD 220009	[4217]	[60]	[1.43]	[1.43]	[0.12]

M giants
α Tau	3927	40	1.01	1.11	0.19
α Cet	3796	65	1.71	0.68	0.23
β Ara	[4197]	[50]	[1.20]	[1.05]	[0.15]
γ Sge	3807	49	1.28	1.05	0.32
ψ Phe	[3472]	[92]	[2.65]	[0.51]	[0.18]

K dwarfs
ϵ Eri	5076	30	0.60	4.61	0.03
Gmb 1830	[4827]	[55]	[1.14]	4.60	0.03
61 Cyg A	4374	22	0.49	4.63	0.04
61 Cyg B	4044	32	0.78	4.67	0.04

Notes. Values in square brackets are uncertain and should not be used as a reference for calibration or validation purposes (see Sect. 6.1).

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