value unc_up unc_lo author ref method 0.312 0.0507 0.0507 Masiero 2011ApJ...741...68M NEATM 0.370 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM 0.391 0.0410 0.0410 Masiero 2012ApJ...759L...8M NEATM