value unc_up unc_lo author ref method 4.26 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM 4.71 0.150 0.150 Masiero 2014ApJ...791..121M NEATM 4.88 0.091 0.091 Masiero 2011ApJ...741...68M NEATM