value unc_up unc_lo author ref method 8.65 0.570 0.570 Masiero 2012ApJ...759L...8M NEATM 9.42 0.090 0.090 Masiero 2014ApJ...791..121M NEATM 9.78 0.080 0.080 Masiero 2011ApJ...741...68M NEATM