value unc_up unc_lo author ref method 0.191 0.0350 0.0350 Masiero 2012ApJ...759L...8M NEATM 0.293 0.0498 0.0498 Masiero 2011ApJ...741...68M NEATM 0.300 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM