Massive stars on the verge of exploding: the properties of oxygen sequence Wolf-Rayet stars

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Table 6

Comparison of estimates of the surface abundances.


ID	N _C / N _He	N _O / N _He	Reference



WR102	1.50	0.45	This work
	0.51	0.11	Kingsburgh et al. (1995)
	0.44^a	0.25^a	Sander et al. (2012)
WR142	1.00	0.16	This work
	0.52	0.10	Kingsburgh et al. (1995)
	0.44^a	0.25^a	Sander et al. (2012)
WR93b	0.60	0.15	This work
	0.95	0.13	Drew et al. (2004)
BAT99-123	0.63	0.13	This work
	0.51	0.11	Kingsburgh et al. (1995)
	0.70	0.15	Crowther et al. (2002)
DR1	0.35	0.06	Tramper et al. (2013)
	0.63	0.27	Kingsburgh & Barlow (1995)

Notes.

^(a)

Fixed value (not fitted).

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