value unc_up unc_lo author ref method 0.390 0.0826 0.0826 Masiero 2011ApJ...741...68M NEATM 0.413 0.0341 0.0341 Masiero 2011ApJ...741...68M NEATM 0.420 0.1100 0.1100 Masiero 2014ApJ...791..121M NEATM