value unc_up unc_lo author ref method 0.242 0.0247 0.0247 Masiero 2011ApJ...741...68M NEATM 0.280 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.298 0.0420 0.0420 Masiero 2012ApJ...759L...8M NEATM