Analysis of new high-precision transit light curves of WASP-10 b: starspot occultations, small planetary radius, and high metallicity

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Table 4

Spot-occultation parameters.

Parameter	run 1 (Aug. 03)	run 2 (Aug. 06)	run 3 (Sep. 06)

Height (mmag)	1.99 ± 0.44	3.07 ± 0.32	1.87 ± 0.31
Duration (min)	34.3 ± 7.9	37.2 ± 4.0	31.6 ± 5.5
Mid-occultation time – T₀ (d)	+ 0.0008 ± 0.0014	−0.0074 ± 0.0007	−0.0141 ± 0.0010
Percentage of stellar disk area^a	0.60 ± 0.13	0.9 ± 0.1	0.6 ± 0.1
Longitude^b (°)	+ 1.1	−10.5	−20.3
rms (mmag)	1.43	1.07	0.95

Notes.

^(a)

The spot contrast of 0.7 (typical for the Sun) was assumed.

^(b)

Defined as − 90° at ingress, 0° at mid-transit time, and +90° at egress.

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