value unc_up unc_lo author ref method 0.240 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM 0.253 0.0391 0.0391 Masiero 2011ApJ...741...68M NEATM 0.312 0.3460 0.3460 Masiero 2012ApJ...759L...8M NEATM