value unc_up unc_lo author ref method 0.148 0.0160 0.0160 Masiero 2012ApJ...759L...8M NEATM 0.197 0.0328 0.0328 Masiero 2011ApJ...741...68M NEATM 0.250 0.0200 0.0200 Masiero 2014ApJ...791..121M NEATM