value unc_up unc_lo author ref method 0.326 0.0483 0.0483 Masiero 2011ApJ...741...68M NEATM 0.350 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM 0.424 0.0660 0.0660 Masiero 2012ApJ...759L...8M NEATM