value unc_up unc_lo author ref method 0.185 0.0240 0.0240 Masiero 2012ApJ...759L...8M NEATM 0.192 0.0207 0.0207 Masiero 2011ApJ...741...68M NEATM 0.220 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM