value unc_up unc_lo author ref method 0.170 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM 0.266 0.0471 0.0471 Masiero 2011ApJ...741...68M NEATM 0.337 0.0650 0.0650 Masiero 2012ApJ...759L...8M NEATM