value unc_up unc_lo author ref method 0.377 0.0280 0.0280 Masiero 2012ApJ...759L...8M NEATM 0.380 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.402 0.0397 0.0397 Masiero 2011ApJ...741...68M NEATM