Table 1. Summary of adopted stellar and planetary parameters as well as corresponding NUV_ratio, f_titania,1Gyr, and A_titania,1Gyr.

Type	Teff (K)	log g	Rs (RSun)	Ls (LSun)	ap (AU)	NUVratio	ftitania,1Gyr	Atitania,1Gyr (km2)
M6	3000	4.5	0.15	0.0009	0.03	0.017	1*10−4	6*104
M0	3800	4.5	0.50	0.072	0.27	0.030	7*10−5	3*104
K2	5000	4.5	0.73	0.33	0.58	0.31	7*10−6	3*103
F6	6300	4.5	1.5	3.0	1.73	1.6	1*10−6	6*102
G2	5800	4.5	1.0	1.0	1.0	1.0	2*10−6	1*103

Type means the stellar spectral type. T_eff is the effective temperature, log g is the surface gravity, R_s is the stellar radius, and L_s is the bolometric luminosity of host stars. a_p is the semi-major axis of a habitable planet receiving equal effective stellar flux to the case for Sun-Earth system (S_eff = 1). NUV_ratio, f_titania,1Gyr, and A_titania,1Gyr are explained in the body text.