value unc_up unc_lo author ref method 10.32 0.250 0.250 Masiero 2012ApJ...759L...8M NEATM 7.46 0.650 0.650 Masiero 2014ApJ...791..121M NEATM 7.56 0.081 0.081 Masiero 2011ApJ...741...68M NEATM