FIG. 13.

Habitable edges for an Earth-like (upper row) and a Super-Ganymede (lower row) exomoon in orbit around Kepler-22b (left column) and KOI211.01 (right column). Masses of both host planets are not well constrained; thus abscissae run over several decades (in units of M_⊕ for Kepler-22b and M_J for KOI211.01). We consider two albedos α_s=0.3 (gray solid lines) and α_s=0.4 (black solid lines) and three eccentricities (e_ps=0.001, 0.01, 0.1) for both moons. No gray solid lines are in the right column because both prototype moons would not be habitable with α_s=0.3 around KOI211.01. TTVs (in units of seconds) for coplanar orbits are plotted with dashed lines.