value unc_up unc_lo author ref method 0.199 0.0467 0.0467 Masiero 2011ApJ...741...68M NEATM 0.210 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.408 0.0570 0.0570 Masiero 2012ApJ...759L...8M NEATM