value	unc_up	unc_lo	author	ref	method
0.045	0.0229	0.0229	Masiero	2017AJ....154..168M	NEATM
0.051	0.0040	0.0040	Masiero	2011ApJ...741...68M	NEATM
0.068	0.0370	0.0370	Masiero	2012ApJ...759L...8M	NEATM