value unc_up unc_lo author ref method 0.283 0.0517 0.0517 Masiero 2011ApJ...741...68M NEATM 0.290 0.0430 0.0430 Masiero 2012ApJ...759L...8M NEATM 0.300 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM