value unc_up unc_lo author ref method 0.190 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.250 0.0454 0.0454 Masiero 2011ApJ...741...68M NEATM 0.270 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM