value unc_up unc_lo author ref method 11.24 0.630 0.630 Masiero 2012ApJ...759L...8M NEATM 12.81 0.180 0.180 Masiero 2014ApJ...791..121M NEATM 13.46 0.067 0.067 Masiero 2011ApJ...741...68M NEATM