value unc_up unc_lo author ref method 0.339 0.0459 0.0459 Masiero 2011ApJ...741...68M NEATM 0.370 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM 0.424 0.0620 0.0620 Masiero 2012ApJ...759L...8M NEATM