value unc_up unc_lo author ref method 0.225 0.0320 0.0320 Masiero 2011ApJ...741...68M NEATM 0.230 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM 0.423 0.3050 0.3050 Masiero 2012ApJ...759L...8M NEATM