value unc_up unc_lo author ref method 10.64 0.110 0.110 Masiero 2014ApJ...791..121M NEATM 10.85 0.520 0.520 Masiero 2012ApJ...759L...8M NEATM 11.05 0.054 0.054 Masiero 2011ApJ...741...68M NEATM