value unc_up unc_lo author ref method 0.360 0.0800 0.0800 Masiero 2014ApJ...791..121M NEATM 0.378 0.0570 0.0570 Masiero 2011ApJ...741...68M NEATM 0.525 0.0870 0.0870 Masiero 2012ApJ...759L...8M NEATM