Narrow band Hα photometry of the super-Earth GJ 1214b with GTC/OSIRIS tunable filters

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Table 1

GJ 1214b central transit times, depths, and linear limb-darkening coefficients from GTC/OSIRIS data.

Filter	R_p/R_⋆	C ₁	ΔT₀ (days)^a

653.5 nm	0.1151 ± 0.0025	0.670 ± 0.143	0.00040 ± 0.00031
656.3 nm	0.1217 ± 0.0025	0.793 ± 0.122	–0.00036 ± 0.00035
662.0 nm	0.1184 ± 0.0026	0.917 ± 0.099	0.00007 ± 0.00044

Notes.

^(a)

Offset ΔT₀ = T_Eph − T₀ computed from ephemeris central time T_Eph = 2 455 791.49643382 BJD.

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