value unc_up unc_lo author ref method 0.138 0.0230 0.0230 Masiero 2012ApJ...759L...8M NEATM 0.189 0.0242 0.0242 Masiero 2011ApJ...741...68M NEATM 0.190 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM