value unc_up unc_lo author ref method 7.84 0.347 0.347 Masiero 2011ApJ...741...68M NEATM 7.92 2.740 2.740 Masiero 2021PSJ.....2..162M NEATM 8.37 0.870 0.870 Masiero 2012ApJ...759L...8M NEATM 8.39 2.240 2.240 Masiero 2021PSJ.....2..162M NEATM