value	unc_up	unc_lo	author	ref	method
6.54	0.037	0.037	Masiero	2011ApJ...741...68M	NEATM
8.07	1.610	1.610	Ali-Lagoa	2018A&A...612A..85A	NEATM
8.45	0.410	0.410	Usui	2011PASJ...63.1117U	NEATM
8.59	0.060	0.060	Masiero	2012ApJ...759L...8M	NEATM