value unc_up unc_lo author ref method 10.39 0.070 0.070 Masiero 2014ApJ...791..121M NEATM 11.30 0.155 0.155 Masiero 2011ApJ...741...68M NEATM 9.69 0.430 0.430 Masiero 2012ApJ...759L...8M NEATM