value unc_up unc_lo author ref method 8.48 0.170 0.170 Masiero 2014ApJ...791..121M NEATM 9.02 0.112 0.112 Masiero 2011ApJ...741...68M NEATM 9.61 2.120 2.120 Nugent 2016AJ....152...63N NEATM 9.71 2.010 2.010 Nugent 2016AJ....152...63N NEATM