value unc_up unc_lo author ref method 0.250 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.262 0.1570 0.1570 Masiero 2012ApJ...759L...8M NEATM 0.267 0.0796 0.0796 Masiero 2011ApJ...741...68M NEATM