value unc_up unc_lo author ref method 0.196 0.1360 0.1360 Masiero 2012ApJ...759L...8M NEATM 0.326 0.0334 0.0334 Masiero 2011ApJ...741...68M NEATM 0.350 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM