value unc_up unc_lo author ref method 0.304 0.0527 0.0527 Masiero 2011ApJ...741...68M NEATM 0.328 0.0663 0.0663 Masiero 2011ApJ...741...68M NEATM 0.360 0.0900 0.0900 Masiero 2014ApJ...791..121M NEATM