value unc_up unc_lo author ref method 0.461 0.0712 0.0712 Masiero 2011ApJ...741...68M NEATM 0.507 0.0721 0.0721 Masiero 2011ApJ...741...68M NEATM 0.510 0.1000 0.1000 Masiero 2014ApJ...791..121M NEATM