value	unc_up	unc_lo	author	ref	method
7.35	2.560	2.560	Masiero	2020PSJ.....1....5M	NEATM
7.73	1.980	1.980	Masiero	2020PSJ.....1....5M	NEATM
8.05	1.640	1.640	Masiero	2017AJ....154..168M	NEATM
9.11	0.149	0.149	Masiero	2011ApJ...741...68M	NEATM