value unc_up unc_lo author ref method 0.302 0.0330 0.0330 Masiero 2012ApJ...759L...8M NEATM 0.329 0.0525 0.0525 Masiero 2011ApJ...741...68M NEATM 0.390 0.1200 0.1200 Masiero 2014ApJ...791..121M NEATM