T6V Standards: Burgasser06 stans: SDSS J162414.37+002915.6 T6 (primary standard) Teff(T6V) = 827 K ; WISE_0645-0302 (Kirkpatrick19; plx=50.7+-4.2mas) Teff(T6V) = 828 K ; WISE_1735-8209 (Kirkpatrick19; plx=75.1+-4.6mas) Teff(T6V) = 881 K ; exemplar 2MASSI J0937347+293142 (Kirkpatrick20) Teff(T6V) = 890 K ; WISE_1122+2550 (Kirkpatrick19; plx=66.3+-2.3mas) Teff(T6V) = 914 K ; Gl_576B (Kirkpatrick19; plx=52.7+-0.3mas) Teff(T6V) = 914 K ; VHS_1258-4412 (Kirkpatrick19; plx=63.8+-4.0mas) Teff(T6V) = 920 K ; 2MASS_0937+2931 (Kirkpatrick19; plx=162.8+-3.9mas) Teff(T6V) = 921 K ; exemplar WISEPC J150649.97+702736.0 (Kirkpatrick20) Teff(T6V) = 923 K ; WISE_1906+4508 (Kirkpatrick19; plx=64.1+-1.6mas) Teff(T6V) = 924 K ; SDSS_1624+0029 (Kirkpatrick19; plx=91.8+-1.2mas) Teff(T6V) = 929 K ; WISE_1501-4004 (Kirkpatrick19; plx=69.5+-4.0mas) Teff(T6V) = 930 K ; 2MASS_1615+1340 (Kirkpatrick19; plx=58.4+-2.5mas) Teff(T6V) = 939 K ; WISE_2357+1227 (Kirkpatrick19; plx=59.5+-4.1mas) Teff(T6V) = 943 K ; Filipazzo15 M6V-T9V field calibration Teff(T6V) = 949 K ; Gl_845C (Kirkpatrick19; plx=276.1+-0.3mas) Teff(T6V) = 952 K ; WISE_1506+7027 (Kirkpatrick19; plx=193.5+-0.6mas) Teff(T6V) = 954 K ; 2MASS_0243-2453 (Kirkpatrick19; plx=93.6+-3.6mas) Teff(T6V) = 967 K ; Kirkpatrick20 (Table 13 polynomial) Teff(T6V) = 968 K ; SCR_1845-6357B (Kirkpatrick19; plx=259.5+-1.1mas) Teff(T6V) = 974 K ; 2MASS_2228-4310 (Kirkpatrick19; plx=92.1+-2.6mas) Teff(T6V) = 977 K ; WISE_1928+2356 (Kirkpatrick19; plx=149.9+-2.4mas) Teff(T6V) = 979 K ; DENIS_0817-6155 (Kirkpatrick19; plx=203.0+-13.0mas) Teff(T6V) = 993 K ; WISE_2343-7418 (Kirkpatrick19; plx=58.8+-2.7mas) Teff(T6V) = 1004 K ; DENIS J081730.0−615520(Kirkpatrick20) Teff(T6V) = 1008 K ; WISE_0627-1114 (Kirkpatrick19; plx=74.8+-3.6mas) Teff(T6V) = 1014 K ; WISE_2237+7228 (Kirkpatrick19; plx=62.3+-2.5mas) => adopt Teff(T6V) = 950 K (logT = 2.978) [updated 2/2/2021] BC_Ks(T6V) = 2.476 ; Filipazzo15 (field) [denser trend through L/T] BC_Ks(T6V) = 2.222 ; Looper08 => adopt BC_Ks(T6V) = 2.47 [updated 11/1/2019] M_J(T6V) = 14.66 ; 2MASS_1225-2739 calc using Kirkpatrick20 (plx=76.0mas) M_J(T6V) = 14.86 ; WISE_0627-1114 calc using Kirkpatrick20 (plx=74.8mas) M_J(T6V) = 14.90 ; WISE_2237+7228 calc using Kirkpatrick20 (plx=67.3mas) M_J(T6V) = 14.92 ; 2MASS_2154+5942 calc using Kirkpatrick20 (plx=71.0mas) M_J(T6V) = 15.01 ; WISE_2343-7418 calc using Kirkpatrick20 (plx=60.9mas) M_J(T6V) = 15.02 ; DENIS_0817-6155 calc using Kirkpatrick20 (plx=191.5301mas) M_J(T6V) = 15.07 ; 2MASS_1615+1340 calc using Kirkpatrick20 (plx=55.4mas) M_J(T6V) = 15.17 ; WISE_1721+1117 calc using Kirkpatrick20 (plx=50.4mas) M_J(T6V) = 15.24 ; 2MASS_0243-2453 calc using Kirkpatrick20 (plx=93.62mas) M_J(T6V) = 15.25 ; SCR_1845-6357B calc using Kirkpatrick20 (plx=249.9187mas) M_J(T6V) = 15.29 ; WISE_1627+3255 calc using Kirkpatrick20 (plx=54.4mas) M_J(T6V) = 15.29 ; WISE_1928+2356 calc using Kirkpatrick20 (plx=154.9mas) M_J(T6V) = 15.30 ; SDSS_1624+0029 calc using Kirkpatrick20 (plx=91.8mas) (pri. stan.) M_J(T6V) = 15.34 ; M_J(MKO)=15.00, J(MKO)-J = -0.34 M_J(T6V) = 15.39 ; WISE_1906+4508 calc using Kirkpatrick20 (plx=64.1mas) M_J(T6V) = 15.47 ; VHS_1258-4412 calc using Kirkpatrick20 (plx=67.0mas) M_J(T6V) = 15.48 ; WISE_2357+1227 calc using Kirkpatrick20 (plx=61.9mas) M_J(T6V) = 15.48 ; 2MASS_2228-4310 calc using Kirkpatrick20 (plx=92.1mas) M_J(T6V) = 15.58 ; WISE_0614+3912 calc using Kirkpatrick20 (plx=53.7mas) M_J(T6V) = 15.71 ; 2MASS_0937+2931 calc using Kirkpatrick20 (plx=162.84mas) M_J(T6V) = 15.75 ; WISE_1501-4004 calc using Kirkpatrick20 (plx=72.8mas) M_J(T6V) = 15.76 ; WISE_1506+7027 calc using Kirkpatrick20 (plx=193.5mas) M_J(T6V) = 15.78 ; WISE_1122+2550 calc using Kirkpatrick20 (plx=66.3mas) => adopt M_J(T6V) = 15.34 [updated 12/5/2020] (M_J(MKO)=15.00, J(MKO)-J = -0.34) M_J(MKO)(T6V) = 14.29 ; 2MASS_1225-2739 calc using Kirkpatrick20 (plx=76.0mas) M_J(MKO)(T6V) = 14.61 ; WISE_0627-1114 calc using Kirkpatrick20 (plx=74.8mas) M_J(MKO)(T6V) = 14.68 ; WISE_2343-7418 calc using Kirkpatrick20 (plx=60.9mas) M_J(MKO)(T6V) = 14.69 ; DENIS_0817-6155 calc using Kirkpatrick20 (plx=191.5301mas) M_J(MKO)(T6V) = 14.85 ; 2MASS_1615+1340 calc using Kirkpatrick20 (plx=55.4mas) M_J(MKO)(T6V) = 14.93 ; WISE_1928+2356 calc using Kirkpatrick20 (plx=154.9mas) M_J(MKO)(T6V) = 14.93 ; WISE_1721+1117 calc using Kirkpatrick20 (plx=50.4mas) M_J(MKO)(T6V) = 14.94 ; WISE_1627+3255 calc using Kirkpatrick20 (plx=54.4mas) M_J(MKO)(T6V) = 14.97 ; WISE_1506+7027 calc using Kirkpatrick20 (plx=193.5mas) M_J(MKO)(T6V) = 14.98 ; WISE_1906+4508 calc using Kirkpatrick20 (plx=64.1mas) M_J(MKO)(T6V) = 14.99 ; 2MASS_0243-2453 calc using Kirkpatrick20 (plx=93.62mas) M_J(MKO)(T6V) = 14.99 ; WISE_0614+3912 calc using Kirkpatrick20 (plx=53.7mas) M_J(MKO)(T6V) = 15.00 ; SDSS_1624+0029 calc using Kirkpatrick20 (plx=91.8mas) (pri. stan.) M_J(MKO)(T6V) = 15.06 ; WISE_2357+1227 calc using Kirkpatrick20 (plx=61.9mas) M_J(MKO)(T6V) = 15.11 ; 2MASS_2228-4310 calc using Kirkpatrick20 (plx=92.1mas) M_J(MKO)(T6V) = 15.13 ; VHS_1258-4412 calc using Kirkpatrick20 (plx=67.0mas) M_J(MKO)(T6V) = 15.28 ; SCR_1845-6357B calc using Kirkpatrick20 (plx=249.9187mas) M_J(MKO)(T6V) = 15.31 ; UGPS_0355+4743 calc using Kirkpatrick20 (plx=66.4mas) M_J(MKO)(T6V) = 15.31 ; Gl_576B calc using Kirkpatrick20 (plx=52.5873mas) M_J(MKO)(T6V) = 15.36 ; 2MASS_0937+2931 calc using Kirkpatrick20 (plx=162.84mas) M_J(MKO)(T6V) = 15.41 ; WISE_1122+2550 calc using Kirkpatrick20 (plx=66.3mas) M_J(MKO)(T6V) = 15.41 ; WISE_1501-4004 calc using Kirkpatrick20 (plx=72.8mas) M_J(MKO)(T6V) = 15.78 ; WISE_1735-8209 calc using Kirkpatrick20 (plx=76.1mas) => adopt M_J(MKO) = 15.00 [updated 12/5/2020] (M_J(MKO)=15.34, J(MKO)-J = -0.34) (J(MKO)-J)(T6V) = -0.79 +- 0.10 ; WISE_1506+7027 (J(MKO)-J)(T6V) = -0.59 +- 0.16 ; WISE_0614+3912 (J(MKO)-J)(T6V) = -0.42 +- 0.14 ; WISE_2357+1227 (J(MKO)-J)(T6V) = -0.41 +- 0.09 ; WISE_1906+4508 (J(MKO)-J)(T6V) = -0.37 +- 0.05 ; 2MASS_1225-2739 (J(MKO)-J)(T6V) = -0.37 +- 0.07 ; 2MASS_2228-4310 (J(MKO)-J)(T6V) = -0.37 +- 0.09 ; WISE_1122+2550 (J(MKO)-J)(T6V) = -0.36 +- 0.06 ; WISE_1928+2356 (J(MKO)-J)(T6V) = -0.35 +- 0.02 ; WISE_1627+3255 (J(MKO)-J)(T6V) = -0.35 +- 0.04 ; 2MASS_0937+2931 (J(MKO)-J)(T6V) = -0.34 +- 0.03 ; WISE_1501-4004 (J(MKO)-J)(T6V) = -0.34 +- 0.14 ; VHS__1258-4412 (J(MKO)-J)(T6V) = -0.33 +- 0.02 ; DENIS_0817-6155 (J(MKO)-J)(T6V) = -0.33 +- 0.04 ; WISE_2343-7418 (J(MKO)-J)(T6V) = -0.30 +- 0.05 ; SDSS_1624+0029 (pri. stan.) (J(MKO)-J)(T6V) = -0.25 +- 0.05 ; WISE_0627-1114 (J(MKO)-J)(T6V) = -0.25 +- 0.06 ; 2MASS_0243-2453 (J(MKO)-J)(T6V) = -0.24 +- 0.07 ; WISE_1721+1117 (J(MKO)-J)(T6V) = -0.22 +- 0.09 ; 2MASS_1615+1340 (J(MKO)-J)(T6V) = 0.03 +- 0.04 ; SCR__1845-6357B => adopt (J(MKO)-J)(T6V) = -0.34 [updated 12/5/2020] mixing MKO and 2MASS, but (K(MKO)-Ks)(T6V) ~ 0.12 (see below), focus on standard SDSS_1624+0029 M_Ks(T6V) = 14.46 ; WISE_1721+1117 calc using Kirkpatrick20(plx=50.4mas) M_Ks(T6V) = 14.55 ; 2MASS_1225-2739 calc using Kirkpatrick20(plx=76.0mas) M_K(MKO)(T6V) = 14.57 ; 2MASS_1615+1340 calc using Kirkpatrick20(plx=55.4mas) M_Ks(T6V) > 14.58 ; 2MASS_1615+1340 calc using Kirkpatrick20(plx=55.4mas) M_Ks(T6V) > 14.60 ; 2MASS_2154+5942 calc using Kirkpatrick20(plx=71.0mas) M_K(MKO)(T6V) = 14.68 ; 2MASS_1225-2739 calc using Kirkpatrick20(plx=76.0mas) M_Ks(T6V) = 14.72 ; WISE_0627-1114 calc using Kirkpatrick20(plx=74.8mas) M_Ks(T6V) = 14.80 ; DENIS_0817-6155 calc using Kirkpatrick20(plx=191.5301mas) M_Ks(T6V) = 14.88 ; WISE_2343-7418 calc using Kirkpatrick20(plx=60.9mas) M_Ks(T6V) > 14.93 ; WISE_0614+3912 calc using Kirkpatrick20(plx=53.7mas) M_K(MKO)(T6V) = 14.93 ; DENIS_0817-6155 calc using Kirkpatrick20(plx=191.5301mas) M_Ks(T6V) = 15.04 ; WISE_1928+2356 calc using Kirkpatrick20(plx=154.9mas) M_Ks(T6V) = 15.08 ; 2MASS_0243-2453 calc using Kirkpatrick20(plx=93.62mas) M_Ks(T6V) > 15.08 ; WISE_2357+1227 calc using Kirkpatrick20(plx=61.9mas) M_K(MKO)(T6V) = 15.10 ; 2MASS_2228-4310 calc using Kirkpatrick20(plx=92.1mas) M_Ks(T6V) = 15.11 ; 2MASS_2228-4310 calc using Kirkpatrick20(plx=92.1mas) M_Ks(T6V) > 15.13 ; WISE_2237+7228 calc using Kirkpatrick20(plx=67.3mas) M_K(MKO)(T6V) = 15.20 ; 2MASS_0243-2453 calc using Kirkpatrick20(plx=93.62mas) M_Ks(T6V) = 15.28 ; VHS_1258-4412 calc using Kirkpatrick20(plx=67.0mas) M_Ks(T6V) > 15.33 ; SDSS_1624+0029 calc using Kirkpatrick20(plx=91.8mas) (pri. stan.) M_K(MKO)(T6V) = 15.42 ; SDSS_1624+0029 calc using Kirkpatrick20(plx=91.8mas) (pri. stan.) M_K(MKO)(T6V) = 15.42 ; M_Ks=15.30, K(MKO)-Ks=0.12 M_K(MKO)(T6V) = 15.48 ; WISE_2357+1227 calc using Kirkpatrick20(plx=61.9mas) M_Ks(T6V) = 15.48 ; WISE_1506+7027 calc using Kirkpatrick20(plx=193.5mas) M_Ks(T6V) = 15.52 ; WISE_1501-4004 calc using Kirkpatrick20(plx=72.8mas) M_Ks(T6V) = 15.66 ; WISE_1122+2550 calc using Kirkpatrick20(plx=66.3mas) M_Ks(T6V) = 15.68 ; SCR_1845-6357B calc using Kirkpatrick20(plx=249.9187mas) M_K(MKO)(T6V) = 15.69 ; SCR_1845-6357B calc using Kirkpatrick20(plx=249.9187mas) M_Ks(T6V) = 15.86 ; WISE_1906+4508 calc using Kirkpatrick20(plx=64.1mas) M_Ks(T6V) > 16.04 ; WISE_1627+3255 calc using Kirkpatrick20(plx=54.4mas) M_Ks(T6V) > 16.30 ; WISE_1900-3108 calc using Kirkpatrick20(plx=42.5mas) M_Ks(T6V) = 16.33 ; 2MASS_0937+2931 calc using Kirkpatrick20(plx=162.84mas) M_Ks(T6V) = 16.39 ; WISE_1735-8209 calc using Kirkpatrick20(plx=76.1mas) M_K(MKO)(T6V) = 16.45 ; 2MASS_0937+2931 calc using Kirkpatrick20(plx=162.84mas) M_K(MKO)(T6V) = 16.59 ; UGPS_0355+4743 calc using Kirkpatrick20(plx=66.4mas) => adopt M_Ks(T6V) = 15.30 [updated 12/5/2020] (M_K=15.42, K(MKO)-Ks=0.12) => adopt M_K(MKO)(T6V) = 15.42 [updated 12/5/2020] (M_Ks=15.30, K(MKO)-Ks=0.12) (K(MKO)-Ks)(T6V) = -0.01 +- 0.21 ; 2MASS_2228-4310 (K(MKO)-Ks)(T6V) = 0.01 +- 0.03 ; SCR__1845-6357B (K(MKO)-Ks)(T6V) = 0.12 +- 0.14 ; 2MASS_0937+2931 (K(MKO)-Ks)(T6V) = 0.12 +- 0.17 ; 2MASS_0243-2453 (K(MKO)-Ks)(T6V) = 0.13 +- 0.04 ; 2MASS_1225-2739 (K(MKO)-Ks)(T6V) = 0.13 +- 0.04 ; DENIS_0817-6155 (K(MKO)-Ks)(T6V) = 0.32 +- 0.17 ; WISE_0417+2415 => adopt (K(MKO)-Ks)(T6V) = 0.12 [updated 12/5/2020] W1-W2(T6V) = 2.01 ; Kirkpatrick19 polynomial # Exemplar 2MASSI J0937347+293142 T5.5: Burgasser10(SpeX) T6: Knapp04 *T6pec: Burgasser02(T6Vp),Burgasser06(T6p),Kirkpatrick11,Kirkpatrick20(near-IR) T7: Kirkpatrick(opt.) T7pec: Burgasser03(opt.,Burgasser10) Kirkpatrick20 flags as 'sd'. plx=162.84+-3.88mas(Kirkpatrick20). Teff=881+-74K(Kirkpatrick20). WISEPC J150649.97+702736.0 T6: Kirkpatrick20(opt. & near-IR) plx=193.5+-0.6mas(Kirkpatrick20). Teff=921+-88K(Kirkpatrick20). # Examples DENIS J081730.0−615520 *T6: Kirkpatrick20(near-IR) plx=191.5301+-0.6037mas(GaiaDR2). Teff=1004+-91K(Kirkpatrick20).