Table 1 The atmospheric parameters for each spectroscopic dataset
From: A super-Chandrasekhar mass type Ia supernova progenitor at 49 pc set to detonate in 23 Gyr
Telescope/instrument | VLT/UVES | WHT/ISIS | HST/COS | Adopted |
|---|---|---|---|---|
Teff,1 (K) | 17,230 ± 710 | \(16,50{0}_{-300}^{+400}\) | 18,630 ± 80 | \(17,26{0}_{-880}^{+1,380}\) |
log g1 (dex) | 8.408 ± 0.027 | 8.35 ± 0.05 | 8.307 ± 0.020 | \(8.35{0}_{-0.052}^{+0.066}\) |
M1 (M⊙) | 0.871 ± 0.018 | 0.83 ± 0.03 | 0.810 ± 0.013 | 0.834 ± 0.039 |
Teff,2 (K) | 20,190 ± 280 | 20,200 ± 300 | 18,010 ± 70 | \(2,000{0}_{-2,000}^{+400}\) |
log g2 (dex) | 8.151 ± 0.021 | 8.16 ± 0.04 | 8.178 ± 0.018 | \(8.16{4}_{-0.030}^{+0.027}\) |
M2 (M⊙) | 0.713 ± 0.014 | 0.72 ± 0.03 | 0.727 ± 0.013 | 0.721 ± 0.020 |
MT (M⊙) | 1.584 ± 0.022 | 1.55 ± 0.04 | 1.537 ± 0.018 | 1.555 ± 0.044 |
