value unc_up unc_lo author ref method 7.48 0.720 0.720 Masiero 2014ApJ...791..121M NEATM 8.24 0.150 0.150 Masiero 2014ApJ...791..121M NEATM 9.02 0.093 0.093 Masiero 2011ApJ...741...68M NEATM 9.66 0.135 0.135 Masiero 2011ApJ...741...68M NEATM