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Table 6

Coefficients of the colour–colour polynomial fittings using the Johnson-Cousins and SDSS passbands.

Johnson-Cousins SDSS

Pure-H ( T eff > 5000 K)

Colour Zero point VIC (VIC)2 (VIC)3 σ Colour Zero point gi (gi)2 (gi)3 σ

G G BP –0.0106 –0.4093 0.3189 –0.3699 0.009 G G BP –0.1186 –0.3188 –0.0276 –0.0390 0.007
G G RP 0.0187 0.7797 –0.4716 0.3166 0.009 G G RP 0.2214 0.5655 –0.0756 –0.0596 0.008
G G RVS 0.0517 1.0443 –0.6142 0.4035 0.013 G G RVS 0.3246 0.7604 –0.1031 –0.0871 0.009
GBP – GRP 0.0292 1.1890 –0.7905 0.6865 0.019 GBP – GRP 0.3400 0.8843 –0.0480 –0.0206 0.013
GV 0.0495 –0.0907 –0.6233 0.4240 0.013 Gg –0.1020 –0.5132 –0.0980 –0.0077 0.003
V G RVS 0.0022 1.1350 0.0091 –0.0205 0.001 G G RVS 0.4266 1.2736 –0.0051 –0.0794 0.007
V G BP –0.0601 –0.3186 0.9421 –0.7939 0.021 G G BP –0.0166 0.1943 0.0704 –0.0313 0.009
V G RP –0.0308 0.8704 0.1516 –0.1073 0.004 G G RP 0.3234 1.0787 0.0224 –0.0519 0.005

Color Zero point VR (VR)2 (VR)3 σ Colour Zero point gr (gr)2 (gr)3 σ

G G BP –0.0232 –0.9322 1.9936 –3.8732 0.015 G G BP –0.0891 –0.5172 –0.0306 –0.0206 0.007
G G RP 0.0427 1.7388 –3.2195 4.3387 0.019 G G RP 0.1658 0.9376 –0.1314 –0.3685 0.011
G G RVS 0.0838 2.3270 –4.2247 5.6185 0.026 G G RVS 0.2498 1.2602 –0.1749 –0.5183 0.014
GBP – GRP 0.0659 2.6710 –5.2132 8.2118 0.034 GBP – GRP 0.2550 1.4548 –0.1008 –0.3480 0.016
GV 0.0473 –0.1712 –2.8314 4.0591 0.017 Gg –0.0555 –0.8062 –0.2123 0.1398 0.003
V G RVS 0.0366 2.4982 –1.3933 1.5594 0.010 G G RVS 0.3053 2.0664 0.0374 –0.6581 0.015
V G BP –0.0704 –0.7610 4.8250 –7.9323 0.032 G G BP –0.0336 0.2889 0.1817 –0.1604 0.009
V G RP –0.0045 1.9100 –0.3881 0.2796 0.003 G G RP 0.2214 1.7438 0.0809 –0.5083 0.011

Colour Zero point RI (RI)2 (RI)3 σ Colour Zero point ri (ri)2 (ri)3 σ

G G BP 0.0002 –0.7288 0.7736 –2.3657 0.007 G G BP –0.1647 –0.8976 –0.9866 –2.5767 0.008
G G RP –0.0015 1.4227 –0.9942 1.4162 0.006 G G RP 0.3038 1.4093 –0.2031 0.8241 0.008
G G RVS 0.0247 1.9071 –1.2742 1.7530 0.007 G G RVS 0.4355 1.8921 –0.3275 0.9117 0.008
GBP – GRP –0.0017 2.1515 –1.7679 3.7820 0.013 GBP – GRP 0.4685 2.3069 0.7835 3.4008 0.015
GV 0.0509 –0.1835 –2.1595 2.7057 0.010 Gg –0.1796 –1.5031 –1.6721 –2.4821 0.009
V G RVS –0.0262 2.0906 0.8853 –0.9527 0.007 G G RVS 0.6150 3.3952 1.3446 3.3938 0.012
V G BP –0.0507 –0.5453 2.9331 –5.0714 0.015 G G BP 0.0149 0.6055 0.6855 –0.0945 0.010
V G RP –0.0524 1.6062 1.1653 –1.2894 0.009 G G RP 0.4834 2.9124 1.4690 3.3062 0.012

Colour Zero point BV (BV)2 (BV)3 σ Colour Zero point gz (gz)2 (gz)3 σ

G G BP 0.0700 –0.5674 –0.4765 0.4891 0.015 G G BP –0.1488 –0.2450 –0.0313 –0.0325 0.006
G G RP –0.1251 1.0288 0.8762 –1.2221 0.033 G G RP 0.2756 0.4128 –0.0513 –0.0099 0.004
G G RVS –0.1404 1.3779 1.1891 –1.6605 0.044 G G RVS 0.3973 0.5549 –0.0713 –0.0170 0.004
GBP – GRP –0.1951 1.5962 1.3527 –1.7112 0.047 GBP – GRP 0.4244 0.6579 –0.0201 0.0226 0.008
GV 0.0607 –0.1378 –0.8979 0.7349 0.020 Gg –0.1508 –0.4044 –0.0731 –0.0219 0.006
V G RVS –0.2011 1.5157 2.0870 –2.3954 0.063 G G RVS 0.5481 0.9593 0.0018 0.0049 0.002
V G BP 0.0093 –0.4297 0.4214 –0.2458 0.006 G G BP 0.0020 0.1594 0.0418 –0.0106 0.010
V G RP –0.1858 1.1666 1.7741 –1.9570 0.052 G G RP 0.4264 0.8173 0.0217 0.0120 0.003

Pure-He (All T eff )

Colour Zero point VIC (VIC)2 (VIC)3 σ Colour Zero point gi (gi)2 (gi)3 σ

G G BP 0.0372 –0.4155 –0.0864 0.0149 0.005 G G BP –0.1127 –0.3463 –0.0320 0.0028 0.004
G G RP –0.0166 0.7803 –0.1451 0.0067 0.004 G G RP 0.2307 0.5106 –0.0860 0.0063 0.004
G G RVS –0.0076 1.0204 –0.1584 0.0035 0.006 G G RVS 0.3194 0.6817 –0.0984 0.0063 0.008
GBP – GRP –0.0538 1.1958 –0.0587 –0.0082 0.009 GBP – GRP 0.3434 0.8568 –0.0539 0.0034 0.007
GV –0.0085 –0.1051 –0.1541 0.0046 0.006 Gg –0.1051 –0.5219 –0.0949 0.0065 0.001
V G RVS 0.0009 1.1255 –0.0043 –0.0011 0.002 G G RVS 0.4244 1.2036 –0.0035 –0.0002 0.007
V G BP 0.0456 –0.3104 0.0676 0.0103 0.010 G G BP –0.0076 0.1756 0.0629 –0.0036 0.004
V G RP –0.0082 0.8854 0.0089 0.0021 0.003 G G RP 0.3358 1.0324 0.0090 –0.0002 0.003

Colour Zero point VR (VR)2 (VR)3 σ Colour Zero point gr (gr)2 (gr)3 σ

G G BP 0.0410 –0.8360 –0.3441 0.1642 0.006 G G BP –0.0758 –0.5153 –0.0698 0.0054 0.007
G G RP –0.0238 1.5787 –0.6202 0.0600 0.010 G G RP 0.1743 0.8064 –0.2102 0.0258 0.007
G G RVS –0.0169 2.0629 –0.6808 0.0292 0.015 G G RVS 0.2443 1.0710 –0.2412 0.0271 0.012
GBP – GRP –0.0647 2.4147 –0.2761 –0.1042 0.016 GBP – GRP 0.2501 1.3217 –0.1403 0.0204 0.013
GV –0.0073 –0.2094 –0.6447 0.1165 0.006 Gg –0.0500 –0.7598 –0.2141 0.0145 0.006
V G RVS –0.0096 2.2723 –0.0361 –0.0873 0.013 G G RVS 0.2943 1.8309 –0.0271 0.0126 0.018
V G BP 0.0483 –0.6266 0.3006 0.0477 0.012 G G BP –0.0258 0.2446 0.1443 –0.0091 0.003
V G RP –0.0164 1.7881 0.0245 –0.0565 0.008 G G RP 0.2243 1.5662 0.0039 0.0113 0.013

Colour Zero point RI (RI)2 (RI)3 σ Colour Zero point ri (ri)2 (ri)3 σ

G G BP 0.0334 –0.8238 –0.3379 0.0480 0.008 G G BP –0.1866 –1.0602 –0.2816 0.1400 0.006
G G RP –0.0104 1.5351 –0.5160 0.0353 0.007 G G RP 0.3332 1.3942 –0.6660 0.0952 0.006
G G RVS 0.0007 2.0093 –0.5587 0.0195 0.007 G G RVS 0.4570 1.8812 –0.7615 0.0749 0.007
GBP – GRP –0.0438 2.3589 –0.1781 –0.0127 0.015 GBP – GRP 0.5198 2.4544 –0.3844 –0.0449 0.012
GV –0.0101 –0.2112 –0.5643 –0.0837 0.008 Gg –0.2192 –1.6588 –0.8081 0.2847 0.014
V G RVS 0.0107 2.2205 0.0056 0.1033 0.012 G G RVS 0.6762 3.5400 0.0466 –0.2098 0.016
V G BP 0.0434 –0.6126 0.2264 0.1317 0.009 G G BP 0.0326 0.5986 0.5265 –0.1447 0.009
V G RP –0.0004 1.7463 0.0483 0.1190 0.013 G G RP 0.5524 3.0530 0.1421 –0.1895 0.017

Colour Zero point BV (BV)2 (BV)3 σ Colour Zero point gz (gz)2 (gz)3 σ

G G BP 0.0247 –0.5733 0.0044 –0.0178 0.012 G G BP –0.1499 –0.2838 –0.0201 0.0012 0.002
G G RP –0.0008 1.0490 –0.4004 0.0790 0.017 G G RP 0.2843 0.3961 –0.0547 0.0035 0.002
G G RVS 0.0140 1.3753 –0.4842 0.0958 0.024 G G RVS 0.3910 0.5316 –0.0628 0.0036 0.005
GBP – GRP –0.0255 1.6223 –0.4048 0.0967 0.028 GBP – GRP 0.4342 0.6800 –0.0346 0.0023 0.003
GV –0.0145 –0.1528 –0.1763 –0.0046 0.014 Gg –0.1616 –0.4358 –0.0603 0.0030 0.007
V G RVS 0.0285 1.5281 –0.3080 0.1004 0.038 G G RVS 0.5526 0.9674 –0.0025 0.0006 0.003
V G BP 0.0392 –0.4205 0.1807 –0.0131 0.003 G G BP 0.0117 0.1520 0.0402 –0.0018 0.007
V G RP 0.0137 1.2018 –0.2241 0.0836 0.030 G G RP 0.4459 0.8320 0.0056 0.0005 0.005

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