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Table 4

Measured or calibrated angular diameters and bolometric fluxes, and their uncertainties (absolute, u, and in percent, %u) for Gaia FGK benchmark stars.

Name θLD [mas] u(θLD) %u(θLD) Band Ref(θLD) Fbol [10-9 W m-2] u(Fbol) %u(Fbol) Ref(Fbol)

F dwarfs
Procyon 5.390 0.030 0.6 K Ch 17.8600 0.8900 5.0 A
HD 84937 0.153 0.005 3.0 K04* 0.0127 0.0001 1.1 B98
HD 49933 0.445 0.012 2.7 735 nm B11 0.1279 0.0014 1.1 B98

FGK subgiants
δ Eri 2.394 0.029 1.2 K T 1.1500 0.0008 0.1 Bo13
HD 140283 0.353 0.013 3.7 720 nm C15 0.0386 0.0008 2.0 A96*
ϵ For 0.788 0.016 2.0 K04* 0.1425 0.0066 4.6 H*
η Boo 2.189 0.014 0.6 K vB 2.2100 0.0282 1.3 vB
β Hyi 2.257 0.019 0.8 700 nm N07 2.0190 0.0525 2.6 B98

G dwarfs
α Cen A 8.511 0.020 0.2 K K 27.1600 0.2670 1.0 Bo13
HD 22879 0.382 0.011 3.0 K04* 0.0577 0.0006 1.1 B98
μ Cas 0.973 0.009 0.9 K Bo08 0.2504 0.0028 1.1 B98
τ Cet 2.015 0.011 0.5 K D 1.1620 0.0128 1.1 B98
α Cen B 6.000 0.021 0.4 K B06 8.9800 0.1220 1.4 Bo13
18 Sco 0.676 0.006 0.9 700 nm Ba 0.1734 0.0090 5.2 Bo13
μ Ara 0.763 0.015 2.0 K04* 0.2354 0.0047 2.0 A95*
β Vir 1.450 0.018 1.2 700 nm N09 0.9590 0.0105 1.1 B98

FGK giants
Arcturus 21.050 0.210 1.0 H L 49.8000 1.2948 2.6 G
HD 122563 0.940 0.011 1.2 K C12 0.1303 0.0061 4.7 H*
μ Leo 2.930 0.040 1.4 C99* 1.1458 0.0530 4.6 H*
β Gem 7.980 0.080 1.0 opt M 11.8200 0.5319 4.5 M
ϵ Vir 3.280 0.030 0.9 opt M 2.2100 0.0994 4.5 M
ξ Hya 2.386 0.021 0.9 K T 1.2280 0.0319 2.6 B98
HD 107328 1.740 0.020 1.1 C99* 0.4122 0.0195 4.7 H*
HD 220009 2.045 0.034 1.7 800 nm Tp 0.4409 0.0206 4.7 H*

M giants
α Tau 20.580 0.030 0.1 K RR 33.5700 1.3500 4.0 RR
α Cet 12.200 0.040 0.3 K W4 10.3000 0.7000 6.8 W4
β Ara 5.997 0.037 0.6 K Tp 3.7179 0.1718 4.6 H*
γ Sge 6.060 0.020 0.3 K W3 2.5700 0.1300 5.1 W3
ψ Phe 8.130 0.200 2.5 K W2 3.2000 0.3000 9.4 W2

K dwarfs
ϵ Eri 2.126 0.014 0.7 K D 1.0000 0.0200 2.0 A96*
Gmb 1830 0.679 0.015 2.2 K C12 0.0834 0.0009 1.1 B98
61 Cyg A 1.775 0.013 0.7 K K08 0.3844 0.0051 1.3 M13
61 Cyg B 1.581 0.022 1.4 K K08 0.2228 0.0032 1.4 M13

Notes. See text for description, and table notes for references. An asterisk indicates indirect determinations of θLD and Fbol values determined from calibrations. The column headed “Band” indicates the wavelength band of the interferometric observations – “opt” for several optical wavelengths, H for several wavelengths from 1.5 to 1.8 μm, K or K for K-band (about 2 μm), or wavelength in nm.

Reference. For θLD: B06 ... Bigot et al. (2006); B11 ... Bigot et al. (2011); Ba ... Bazot et al. (2011); Bo08 ... Boyajian et al. (2008); C12 ... Creevey et al. (2012); C15 ... Creevey et al. (2015); C99 ... Cohen et al. (1999); Ch ... Chiavassa et al. (2012); D ... di Folco et al. (2007); K ... Kervella et al. (2003b); K08 ... Kervella et al. (2008); K04 ... indirect, using surface-brightness relations by Kervella et al. (2004a); M ... Mozurkewich et al. (2003); L ... Lacour et al. (2008, τRoss = 1; N07 ... North et al. (2007); N09 ... North et al. (2009); RR ... Richichi & Roccatagliata (2005); T ... Thévenin et al. (2005); Tp ... Thévenin et al., in prep., VLTI/AMBER measurement for β Ara, CHARA/VEGA for HD 220009; vB ... van Belle et al. (2007); W2/W3/W4 ... Wittkowski et al. (2004, 2006b,a, τRoss = 1. Additional references for Fbol: A ... Aufdenberg et al. (2005); A95 ... Alonso et al. (1995) calibration for dwarf stars; A96 ... Alonso et al. (1996a, their Table 4); B98 ... Blackwell & Lynas-Gray (1998), uncertainties of 1.1% for dwarfs and 2.6% for giants and subgiants following di Benedetto (1998, Sect. 3.2, p. 863); Bo13 ... Boyajian et al. (2013), G ... Griffin & Lynas-Gray (1999), uncertainty of 2.6% from Koch & McWilliam (2008); H ... from the V magnitude and the bolometric correction BCV derived from the calibration of Alonso et al. (1999b); M13 ... Mann et al. (2013).

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