value	unc_up	unc_lo	author	ref	method
0.044	0.0268	0.0268	Masiero	2017AJ....154..168M	NEATM
0.053	0.0350	0.0350	Masiero	2012ApJ...759L...8M	NEATM
0.061	0.0394	0.0394	Masiero	2017AJ....154..168M	NEATM
0.079	0.0100	0.0100	Masiero	2011ApJ...741...68M	NEATM