value unc_up unc_lo author ref method 0.253 0.0202 0.0202 Masiero 2011ApJ...741...68M NEATM 0.270 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM 0.359 0.0450 0.0450 Masiero 2012ApJ...759L...8M NEATM