value unc_up unc_lo author ref method 0.040 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM 0.046 0.0371 0.0371 Masiero 2011ApJ...741...68M NEATM 0.046 0.0098 0.0098 Masiero 2011ApJ...741...68M NEATM