value unc_up unc_lo author ref method 0.174 0.0134 0.0134 Masiero 2011ApJ...741...68M NEATM 0.230 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.236 0.0260 0.0260 Masiero 2012ApJ...759L...8M NEATM