value unc_up unc_lo author ref method 11.93 0.114 0.114 Masiero 2011ApJ...741...68M NEATM 14.01 3.040 3.040 Masiero 2012ApJ...759L...8M NEATM 14.38 4.312 4.312 Masiero 2017AJ....154..168M NEATM