value	unc_up	unc_lo	author	ref	method
6.96	0.800	0.800	Usui	2011PASJ...63.1117U	NEATM
7.54	1.510	1.510	Ali-Lagoa	2018A&A...612A..85A	NEATM
8.45	0.150	0.150	Masiero	2012ApJ...759L...8M	NEATM
9.13	0.135	0.135	Masiero	2011ApJ...741...68M	NEATM
9.21	0.240	0.240	Masiero	2014ApJ...791..121M	NEATM