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Fig. 8

image

Light curves of GJ 3470 in the red wing of the Lyman-α line. Top and bottom panels: flux integrated, respectively, over [+23, +76] and [+76, +300] km s−1 in the stellar rest frame. Blue and orange points correspond to COS exposures in Visits D and E, binned over the phase window of each HST orbit into the black points. Red points correspond to STIS exposures in Visits A, B, and C (Bourrier et al. 2018a). All data were normalized by the fluxes in the first and last HST orbits. Vertical dashed lines indicate the transit contacts.

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