value unc_up unc_lo author ref method 7.52 0.080 0.080 Masiero 2011ApJ...741...68M NEATM 7.75 2.140 2.140 Masiero 2020PSJ.....1....5M NEATM 8.86 2.920 2.920 Masiero 2020PSJ.....1....5M NEATM