Table 3
Compilation of stellar and X-ray properties of the objects discussed in this paper.
No. | Object | Sp. T. | d | Teff | log Lstar | log Ṁwίnd | Vwind | Refs. | log Lwind | log LX | R2 | TX | Refs. |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(kpc) | (kK) | (L⊙) | (M⊙ yr−1) | (km s−1) | (L⊙) | (L⊙) | (pc) | (MK) | |||||
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
1 | BD+30º3639 | [WC9] | 1.61 | 46 | 3.96 | −5.40 | 730 | (3,4, 5) | 2.24 | −0.96 | 0.015 | 1.8 ± 0.1 | (1) |
2 | IC418 | O7fp | 1.37 | 36 | 3.84 | −7.06 | 650 | (6, 7, 8, 9) | 0.48 | −3.55 | 0.012 | 3 | |
3 | IC4593 | O7fp | 2.63 | 40 | 3.77 | −7.60 | 830 | (17) | 0.15 | −2.97 | 0.025 | 1.7 | (17) |
4 | NGC40 | [WC8] | 1.79 | 71 | 3.88 | −5.61 | 1000 | (3,10) | 2.31 | −1.71 | 0.158 | 1 | |
5 | NGC2392 | O6f | 1.82 | 44 | 3.87 | −7.52 | 370 | (6, 8, 9, 11) | −0.47 | −2.02 | 0.062 | ![]() |
(18) |
6 | NGC3242 | O(H) | 1.33 | 79 | 3.73 | −8.27 | 2350 | (6, 8, 9) | 0.39 | −2.47 | 0.046 | 2.2±0.1 | |
7 | NGC5189 | [WO1] | 1.47 | 165 | 3.58 | −6.67 | 2500 | (15) | 2.04 | −1.26 | 0.313 | 1.6±0.1 | (16) |
8 | NGC5315(a) | [WO4] | 2.50 | 75 | 3.69 | −5.83 | 2300 | (3, 5, 12) | 2.81 | −1.16 | 0.012 | 2.7±0.3 | |
9 | NGC6543 | wels | 1.37 | 64 | 3.57 | −7.05 | 1420 | (11,13) | 1.17 | −1.85 | 0.036 | 1.7±0.1 | |
10 | NGC6826 | O6fp | 1.30 | 47 | 3.56 | −7.44 | 1200 | (6, 8, 9) | 0.64 | −3.29 | 0.032 | 2.3 | |
11 | NGC7009 | O(H) | 1.23 | 82 | 3.51 | −8.65 | 2770 | (6,14) | 0.15 | −2.08 | 0.070 | 1.8±0.2 | |
12 | NGC7026(b) | [WO3] | 3.23 | 126 | 4.80 | −5.83 | 2000 | (14) | 2.69 | −0.38 | 0.191 | ![]() |
(2) |
Notes. Given next to object and spectral type are distance (Col. 4), stellar effective temperature (Col. 5), stellar bolometric luminosity (Col. 6), stellar mass-loss rate (Col. 7), terminal stellar wind velocity (Col. 8), references of adopted stellar parameters (Col. 9), stellar-wind luminosity (Col. 10), bubble X-ray luminosity (Col. 11), hot-bubble radius (Col. 12), characteristic bubble temperature (Col. 13), and reference thereof (Col. 14). Distances based on the Gaia Data Release 3 (DR3), except for NGC 5315. Care was taken to ensure that all distance-dependent data are consistent with the distances given in Col. 4. The X-ray luminosities and X-ray temperatures refer to the energy range 0.3–2.0 keV (6.2–41.3 Å) and are from Ruiz et al. (2013) if not otherwise noted; TX values derived from spectra of low quality are in italics. (a)Distance based on an assumed stellar luminosity of 4900 L⊙; see text. (b)A new analysis performed by Todt (2019, priv. comm.) came up with a distance of 1 kpc for an extinction of E(B – V) = 0.85 and an assumed stellar luminosity of 6000 L⊙. This distance is not compatible with the extinction-distance relation derived by Solf & Weinberger (1984), according to which the distance should be ≳2 kpc. Therefore, we kept the Gaia DR3 parallax and note that its error is 10% only (see text for more details).
References. (1) TX value from Paper II; (2) TX from Gruendl et al. (2006); (3) Marcolino et al. (2007); (4) Crowther et al. (2006); (5) de Freitas Pacheco et al. (1993); (6) Méndez et al. (1992); (7) Morisset & Georgiev (2009); (8) Kudritzki et al. (2006); (9) Pauldrach et al. (2004); (10) Toalá et al. (2019b); (11) Herald & Bianchi (2011); (12) Todt et al. (2015); (13) Georgiev et al. (2008); (14) Todt (2019, priv. comm.); (15) Keller et al. (2014); (16) Toalá et al. (2019a); (17) Toalá et al. (2020); (18) Guerrero et al. (2005).
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