value unc_up unc_lo author ref method 7.14 0.120 0.120 Masiero 2014ApJ...791..121M NEATM 7.38 0.184 0.184 Masiero 2011ApJ...741...68M NEATM 7.58 0.140 0.140 Masiero 2014ApJ...791..121M NEATM 7.66 0.106 0.106 Masiero 2011ApJ...741...68M NEATM