value unc_up unc_lo author ref method 0.221 0.0170 0.0170 Masiero 2011ApJ...741...68M NEATM 0.240 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM 0.277 0.2740 0.2740 Masiero 2012ApJ...759L...8M NEATM