value unc_up unc_lo author ref method 10.38 0.032 0.032 Masiero 2011ApJ...741...68M NEATM 11.68 0.320 0.320 Masiero 2012ApJ...759L...8M NEATM 9.94 0.160 0.160 Masiero 2014ApJ...791..121M NEATM