Massive open star clusters using the VVV survey - IV. WR 62-2, a new very massive star in the core of the VVV CL041 cluster

A.-N. Chené; S. Ramírez Alegría; J. Borissova; E. O’Leary; F. Martins; A. Hervé; M. Kuhn; R. Kurtev; P. Consuelo Amigo Fuentes; C. Bonatto; D. Minniti

doi:10.1051/0004-6361/201525958

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Volume 584 (December 2015)

A&A, 584 (2015) A31

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Table 2

Stellar parameters derived from CMFGEN models.

ID	Sp. Typ.	log L/L_⊙	T _eff	log g	v _∞	log Ṁ	He/H	C/H	N/H	O/H
			(kK)	cm s^-2	(km s^-1)	M_⊙ yr^-1		[10^-4]	[10^-4]	[10^-4]

2	O7V/III	5.75	40	3.9	2000	–6.35	0.1	0.8	1.4	8.5
3	O7V/III	5.35	40	3.9	2000	–6.69	–	0.8	4.0	8.57
5	O6-7V/III	5.38	40	3.9	2000	–7.30	–	4.0	1.20	8.67
6	O4-5V/III	5.70	42.5	3.9	2000	–7.30	–	4.0	4.5	8.67
8⁺	WN8-9h	6.37	34	–	1000	–5.00	0.1	0.8	9.0	–

Notes. Columns include the name of the star, its luminosity, temperature, gravity, terminal velocity, mass loss and He, C, N, and O abundances. The β value for the wind velocity law was fixed to 1 and filling factor f to 0.1.

⁽⁺⁾

Also named WR 62-2.

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