Table A.1.
Journal of ALMA observations together with ℓ Car temperature and angular diameter.
| Date | Date | ton | PWV | Baselines | Nant | ϕ | Teff | θUD | |
|---|---|---|---|---|---|---|---|---|---|
| obs. UTC | (MJD) | (min) | (mm) | (m) | (K) | (mas) | |||
| setup 1 | 2024-05-05 01:04:51 | 60435.04 | 38 | 1.19 | 15 – 99 | 42 | 0.02 | 5253±38 | 2.91 ± 0.04 |
| (221.61 GHz) | 2023-12-16 09:05:51 | 60294.38 | 38 | 3.26 | 15 – 2516 | 47 | 0.06 | 5253±38 | 2.91 ± 0.04 |
| 2023-12-16 08:08:02 | 60294.34 | 38 | 2.98 | 15 – 2516 | 47 | 0.06 | 5253±38 | 2.91 ± 0.04 | |
| setup 2 | 2024-07-13 21:46:16 | 60504.91 | 44 | 0.34 | 15 – 2516 | 43 | 0.98 | 5253±38 | 2.91 ± 0.04 |
| (264.86 GHz) | 2024-07-01 20:23:21 | 60492.85 | 44 | 0.31 | 37 – 2516 | 43 | 0.65 | 4586±100 | 2.99 ± 0.04 |
| 2024-10-02 13:50:51 | 60585.56 | 41 | 0.94 | 15 – 499 | 42 | 0.26 | 4785±100 | 3.18 ± 0.04 | |
Notes. Journal of observations presented in Sect. 2 for setups 1 and 2. ton is time on source. PWV is the average precipitable water vapour during the observations. Baseline lengths represent datasets before pipeline flagging. Nant is the number of unflagged antennas. For each epoch, we derive the pulsation phase using recent pulsation period and reference epoch at maximum light as measured by Gaia, P0 = 35.558 day and T0 = 56807.202 (Gaia Collaboration 2023) and with a rate of period change from Csörnyei et al. (2022). For each pulsation phase ϕ, the UD angular diameter θUD are retrieved from the literature, while the effective temperature Teff are retrieved from the literature and interpolated (see Sect. 3).
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