value unc_up unc_lo author ref method 10.01 0.057 0.057 Masiero 2011ApJ...741...68M NEATM 9.11 0.310 0.310 Masiero 2012ApJ...759L...8M NEATM 9.13 0.710 0.710 Masiero 2014ApJ...791..121M NEATM