MuSCAT2 multicolour validation of TESS candidates: an ultra-short-period substellar object around an M dwarf

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Volume 633 (January 2020)

A&A, 633 (2020) A28

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Table 2

Final joint model parametrisation and priors.

Notation	Name	Prior
System parameters
T_c	Zero epoch
P	Orbital period
ρ_⋆	Stellar density
b	Impact parameter
	True area ratio
Passband-independent contamination parameters
T_Eff,H	Host T_Eff
T_Eff,C	Contaminant T_Eff
Passband-dependent contamination parameters
	Apparent area ratio
Passband-dependent stellar limb darkening
q₁	Limb darkening q₁	or LDTK
q₂	Limb darkening q₂	or LDTK
Light-curve-dependent average photometric error
log₁₀ σ	log₁₀ error
Light-curve-dependent TESS baseline coefficients
c_i	Intercept
Light- curve-dependent MuSCAT2 baseline coefficients
c_i	Intercept
c_b	Sky
c_b	Centroid x shift
c_b	Centroid y shift
c_b	Aperture entropy
Light-curve-dependent LCOGT baseline coefficients
c_i	Intercept
c_b	Airmass
c_b	Centroid x shift
c_b	Centroid y shift
c_b	FWHM

Notes. stands for a uniform prior from a to b, and for a normal prior with mean μ and standard deviation σ. The division of parameters into different categories is explained in the main text.

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