value unc_up unc_lo author ref method 0.203 0.0473 0.0473 Masiero 2011ApJ...741...68M NEATM 0.240 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM 0.319 0.0660 0.0660 Masiero 2012ApJ...759L...8M NEATM 0.370 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM