value unc_up unc_lo author ref method 0.280 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.285 0.0262 0.0262 Masiero 2011ApJ...741...68M NEATM 0.513 0.1930 0.1930 Masiero 2012ApJ...759L...8M NEATM