A possibly solar metallicity atmosphere escaping from HAT-P-32b revealed by Hα and He absorption

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Fig. 5

Comparison of He 10830 and Hα transmission spectra with the models of H/He = 92/8, F_XUV = F₀, and β_m = 0.16 for metallicities ranging from Z = 1 to Z = 200. The stellar Lyα flux is 100 times the fiducial value, i.e. F_Lyα = $100 F_{L y α_{0}}$ $\[100 F_{\mathrm{Ly} \alpha_0}\]$ .

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