value unc_up unc_lo author ref method 0.328 0.0660 0.0660 Masiero 2012ApJ...759L...8M NEATM 0.369 0.0515 0.0515 Masiero 2011ApJ...741...68M NEATM 0.434 0.2425 0.2425 Masiero 2011ApJ...741...68M NEATM