L6.5V

Kirkpatrick09(GrayCorbally): 2MASS J09201223+3517429 - L6.5 (primary optical standard)

(J-H)(L6.5V)  = 1.091 (+-0.13 rms) ; SIMBAD trend for d<30pc L dwarfs
=> adopt (J-H)(L6.5V) = 1.09 [updated 8/6/2020]

(H-Ks)(L6.5V)= 0.652 (+-0.09 rms); trend SIMBAD d<30pc L dwarfs
=> adopt (H-Ks)(L6.5V) = 0.652 [updated 8/6/2020]

M_J(L6.5V) = 14.109 ; EEM fit to L/T dwarfs d<25pc

M_Ks(L6.5V) = 12.35 ; fit to SIMBAD L0-T7.5 dwarfs d<25pc (12/2020)
M_Ks(L6.5V) = 12.37 ; trend to L/T dwarfs in notes (1/2021)
=> adopt M_Ks(L6.5V) = 12.35 [updated 12/30/2020]

Teff(L6.5V) = 1600 K ; Cifuentes20 <Teff> for CARMENES L6.5V(N=1)
Teff(L6.5V) = 1597 K ; 2MASSI J0652307+471034 (Kirkpatrick20)
Teff(L6.5V) = 1466 K ; Kirkpatrick20 (Table 13 polynomial)
Teff(L6.5V) = 1440 K ; Filippazzo15 calibration (M6V-T9V)

# Examples

2MASSI J0652307+471034
  L4.5V: Kirkpatrick20(opt.)
 *L6.5V: Kirkpatrick20(near-IR)

  plx=110.31+-0.29mas(Kirkpatrick20). Teff=1597+-88K(Kirkpatrick20).