value	unc_up	unc_lo	author	ref	method
0.221	0.0440	0.0440	Masiero	2012ApJ...759L...8M	NEATM
0.330	0.0300	0.0300	Masiero	2014ApJ...791..121M	NEATM
0.343	0.0537	0.0537	Masiero	2011ApJ...741...68M	NEATM