value unc_up unc_lo author ref method 0.244 0.0141 0.0141 Masiero 2011ApJ...741...68M NEATM 0.268 0.2330 0.2330 Masiero 2012ApJ...759L...8M NEATM 0.280 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM