SDSS-V LVM: Detectability of Wolf-Rayet stars and their He II ionizing flux in low-metallicity environments - I. The weak-lined, early-type WN3 stars in the SMC

Home

All issues

Volume 703 (November 2025)

A&A, 703 (2025) L11

Full HTML

Open Access

Table 1.

Fundamental parameters of the SMC WN3h stars and their He II ionizing fluxes.

Target	Stellar parameters(a)
	T_eff(τ = 2/3)	log L	log Ṁ_t(b)	log q_HeII(c)	log Q_HeII, star	40″	80″	160″	320″	600″
	(kK)	(L_⊙)	(Ṁ yr⁻¹)	(phot. s⁻¹ cm⁻²)	(phot. s⁻¹)	12 pc	24 pc	48 pc	96 pc	181 pc
AB1	79	6.07	−5.36	23.53	47.68	46.445	46.540	46.913	47.055	47.073
					Q_HeII, LVM/Q_HeII, star:	0.0582	0.0725	0.1709	0.2374	0.2473
AB7	98	6.10	−4.81	24.67	48.50	47.933	48.352	48.546	48.583	48.695
					Q_HeII, LVM/Q_HeII, star:	0.2710	0.7116	1.1124	1.2118	1.5654
AB9	99	6.05	−5.44	24.61	48.49	46.253	46.728	47.185	47.808	48.102
					Q_HeII, LVM/Q_HeII, star:	0.0058	0.0173	0.0496	0.2080	0.4096
AB10	98	5.65	−5.38	24.62	48.10	47.448	47.385	47.345	47.374	47.549
					Q_HeII, LVM/Q_HeII, star:	0.2229	0.1927	0.1759	0.1880	0.2814
AB11	88	5.85	−5.49	23.90	47.88	45.794	46.029	46.502	47.068	47.427
					Q_HeII, LVM/Q_HeII, star:	0.0082	0.0141	0.0419	0.1540	0.3522
AB12	112	5.90	−5.47	25.04	48.57	46.447	46.786	47.236	47.605	48.456
					Q_HeII, LVM/Q_HeII, star:	0.0075	0.0165	0.0464	0.1085	0.7690

Notes.aTaken from Hainich et al. (2015) and Shenar et al. (2016). bDefined by Gräfener & Vink (2013): ${\dot{M}}_{t} \propto \dot{M} \sqrt{D} v_{\infty}^{- 1} L^{- 3 / 4}$ $\dot{M}_\text{t} \propto \dot{M}\,\sqrt{D}\,v_\infty^{-1} L^{-3/4}$ with D denoting the clumping factor and v_∞ the terminal wind velocity. c $q = \frac{Q}{4 π R_{*}^{2}}$ $q = \frac{Q}{4 \pi R_\ast^2}$ , where R_* is the extended stellar radius given by the PoWR models.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.