value unc_up unc_lo author ref method 0.265 0.0191 0.0191 Masiero 2011ApJ...741...68M NEATM 0.276 0.0350 0.0350 Masiero 2012ApJ...759L...8M NEATM 0.310 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM