value unc_up unc_lo author ref method 0.336 0.0301 0.0301 Masiero 2011ApJ...741...68M NEATM 0.340 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM 0.453 0.1060 0.1060 Masiero 2012ApJ...759L...8M NEATM