Extended Data Fig. 1: Lyman alpha model fit.
From: Signatures of strong magnetization and a metal-poor atmosphere for a Neptune-sized exoplanet
One of our best models fit (B = 2.4 G, 2.35 x solar metallicity) compared to HAT-P-11b Lya line profiles observed at selected phases of the transit event (HST visit 1 & 2 averaged). We show the out-of-transit Lya line profile (average of orbit 1 of the two visits, black), in-transit observed line profile (red), and model best fit for the selected phase (cyan). Error bars represent the 1σ statistical uncertainties. a, HST orbit 5. b, HST orbit 4. c, HST orbit 3 (see Fig. 2 main draft for details).
