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Home All issues Volume 692 (December 2024) A&A, 692 (2024) A49 Full HTML
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Table 1.

Parameters of SMC massive stars proximate to and within the sub-surface convection zone stability window studied in this work.

Simbad name TIC ID Gaia DR3 Teff log10(L/L⊙) νchar PSDmax PSDmin
(K) (d−1) (mmag2/d−1) (mmag2/d−1)
AzV 16 180617038 4685854571724688768 27200 5.75 0 . 33 − 0.09 + 0.08 $ 0.33^{+0.08}_{-0.09} $ 2.43 × 10−3 3.29 × 10−7
AzV 18 180617057 4688950933906863488 19000 5.44 0 . 35 − 0.18 + 0.17 $ 0.35^{+0.17}_{-0.18} $ 1.06 × 10−3 2.57 × 10−7
AzV 83 181043369 4688966125248119808 32800 5.54 0 . 88 − 0.12 + 0.13 $ 0.88^{+0.13}_{-0.12} $ 7.69 × 10−4 4.74 × 10−6
Cl* NGC 346 MPG 12 181880133 4689016221756858624 31000 4.93 0 . 96 − 0.17 + 0.20 $ 0.96^{+0.20}_{-0.17} $ 4.26 × 10−4 1.10 × 10−5
AzV 202 181887485 4689019898248677888 26300 4.80 2 . 04 − 0.95 + 1.97 $ 2.04^{+1.97}_{-0.95} $ 1.68 × 10−5 4.25 × 10−6
Cl* NGC 346 ELS 46 182294016 4690504582501410432 39000 4.81 2 . 10 − 1.74 + 9.16 $ 2.10^{+9.16}_{-1.74} $ 2.87 × 10−3 1.13 × 10−4
Cl* NGC 346 ELS 25 182294030 4690504994818102016 36200 4.90 0 . 73 − 0.13 + 0.15 $ 0.73^{+0.15}_{-0.13} $ 3.02 × 10−3 3.64 × 10−5
AzV 267 182294155 4690507022042458624 35700 4.90 1 . 47 − 0.63 + 6.93 $ 1.47^{+6.93}_{-0.63} $ 5.30 × 10−4 3.26 × 10−5
AzV 264 182294249 4690520387983090432 22500 5.44 0 . 40 − 0.09 + 0.08 $ 0.40^{+0.08}_{-0.09} $ 1.17 × 10−3 3.59 × 10−7
AzV 251 182300503 4685990709381204864 33100 4.89 2 . 69 − 1.11 + 10.02 $ 2.69^{+10.02}_{-1.11} $ 9.92 × 10−5 6.16 × 10−6
Cl* NGC 346 MPG 682 182300967 4689015465842590464 34800 4.89 0 . 73 − 0.66 + 3.54 $ 0.73^{+3.54}_{-0.66} $ 4.71 × 10−3 2.99 × 10−5
AzV 372 182729695 4687411518857964032 28000 5.62 0 . 48 − 0.09 + 0.09 $ 0.48^{+0.09}_{-0.09} $ 5.46 × 10−4 2.50 × 10−7
AzV 429 182910549 4687532533854919680 38300 5.13 1 . 03 − 0.19 + 0.24 $ 1.03^{+0.24}_{-0.19} $ 1.39 × 10−4 6.14 × 10−6
AzV 468 183302393 4687248791131672960 34700 4.76 7 . 78 − 6.98 + 16.26 $ 7.78^{+16.26}_{-6.98} $ 4.66 × 10−5 1.07 × 10−5
AzV 479 183306464 4686408759936714752 29000 5.82 1 . 05 − 0.20 + 0.18 $ 1.05^{+0.18}_{-0.20} $ 2.36 × 10−5 1.46 × 10−7
AzV 472 183306676 4687241472507227520 19000 5.31 0 . 49 − 0.09 + 0.08 $ 0.49^{+0.08}_{-0.09} $ 2.54 × 10−4 1.87 × 10−7
AzV 488 183492668 4686413437158238208 27500 5.74 0 . 56 − 0.10 + 0.10 $ 0.56^{+0.10}_{-0.10} $ 1.75 × 10−4 7.58 × 10−8
[M2002] SMC 81469 183979145 4686450580031889536 31000 4.90 1 . 99 − 0.30 + 0.39 $ 1.99^{+0.39}_{-0.30} $ 4.21 × 10−5 2.50 × 10−6
2dFS 3780 183981879 4686448106130736256 32000 4.85 1 . 39 − 0.28 + 0.36 $ 1.39^{+0.36}_{-0.28} $ 1.58 × 10−5 2.39 × 10−6
2dFS 163 267429694 4688838203919272832 32600 4.82 1 . 48 − 0.25 + 0.30 $ 1.48^{+0.30}_{-0.25} $ 4.00 × 10−4 1.21 × 10−5
2dFS 3954 303910981 4686266721070836608 37000 4.75 2 . 95 − 1.97 + 16.79 $ 2.95^{+16.79}_{-1.97} $ 4.29 × 10−5 1.12 × 10−5
AzV 461 402099597 4687470686324401536 37100 5.00 0 . 36 − 0.14 + 0.12 $ 0.36^{+0.12}_{-0.14} $ 5.76 × 10−3 4.50 × 10−6
AzV 456 402100664 4687251368112248960 29500 5.81 0 . 83 − 0.24 + 0.21 $ 0.83^{+0.21}_{-0.24} $ 2.95 × 10−5 2.04 × 10−7

Notes. Spectroscopic parameters are from Vink et al. (2023) and Hawcroft et al. (2024), and the characteristic frequency, νchar, and its 2σ confidence interval determined using a Gaussian process (GP) regression methodology (Bowman & Dorn-Wallenstein 2022). The maximum and minimum values of the power spectral density (PSD) of the best-fit GP regression model, as proxies for α0 and CW, respectively, of the SLF variability are also provided. An average for the typical reported uncertainties are σ(Teff) = 1500 K and σ(log10(L/L⊙)) = 0.1 dex.

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