Open Access
Table E.1.
ALMA Sgr A* light curves, in total flux density, polarized intensity, and Stokes V, presented in this paper.
| Day | UT | Duration | Parameter | Spectral Window | Samples | Flux density | Modulation | |
|---|---|---|---|---|---|---|---|---|
| (2018) | (h) | (h) | label | Frequency (GHz) | μ ± σ (Jy) | σ/μ | ||
| April 21 | 7:23 - 13:30 | 6.12 | Stokes I | B1 | 212.1 − 214.1 | 1934 | 2.89 ± 0.15 | 0.050 |
| B2 | 214.1 − 216.1 | 1934 | 2.90 ± 0.14 | 0.049 | ||||
| B3 | 226.1 − 228.1 | 1894 | 2.88 ± 0.12 | 0.042 | ||||
| B4 | 228.1 − 230.1 | 1911 | 2.89 ± 0.13 | 0.044 | ||||
| P | B1 | 212.1 − 214.1 | 1934 | 0.10 ± 0.05 | 0.49 | |||
| B2 | 214.1 − 216.1 | 1934 | 0.10 ± 0.05 | 0.50 | ||||
| B3 | 226.1 − 228.1 | 1894 | 0.12 ± 0.05 | 0.44 | ||||
| B4 | 228.1 − 230.1 | 1911 | 0.12 ± 0.05 | 0.43 | ||||
| Stokes V | B1 | 212.1 − 214.1 | 1934 | −0.027 ± 0.009 | 0.33 | |||
| B2 | 214.1 − 216.1 | 1934 | −0.027 ± 0.009 | 0.33 | ||||
| B3 | 226.1 − 228.1 | 1894 | −0.030 ± 0.010 | 0.33 | ||||
| B4 | 228.1 − 230.1 | 1911 | −0.032 ± 0.009 | 0.29 | ||||
| April 22 | 4:25 - 13:15 | 8.83 | Stokes I | B1 | 212.1 − 214.1 | 3436 | 2.86 ± 0.15 | 0.052 |
| B2 | 214.1 − 216.1 | 3464 | 2.87 ± 0.15 | 0.052 | ||||
| B3 | 226.1 − 228.1 | 3471 | 2.83 ± 0.13 | 0.046 | ||||
| B4 | 228.1 − 230.1 | 3483 | 2.85 ± 0.15 | 0.053 | ||||
| P | B1 | 212.1 − 214.1 | 3436 | 0.15 ± 0.05 | 0.31 | |||
| B2 | 214.1 − 216.1 | 3464 | 0.16 ± 0.05 | 0.31 | ||||
| B3 | 226.1 − 228.1 | 3471 | 0.17 ± 0.06 | 0.32 | ||||
| B4 | 228.1 − 230.1 | 3483 | 0.18 ± 0.06 | 0.32 | ||||
| Stokes V | B1 | 212.1 − 214.1 | 3436 | −0.020 ± 0.013 | 0.65 | |||
| B2 | 214.1 − 216.1 | 3464 | −0.020 ± 0.013 | 0.65 | ||||
| B3 | 226.1 − 228.1 | 3471 | −0.020 ± 0.011 | 0.55 | ||||
| B4 | 228.1 − 230.1 | 3483 | −0.022 ± 0.010 | 0.46 | ||||
| April 24 | 3:05 - 11:56 | 8.86 | Stokes I | B1 | 212.1 − 214.1 | 3030 | 3.24 ± 0.12 | 0.037 |
| B2 | 214.1 − 216.1 | 3029 | 3.25 ± 0.12 | 0.037 | ||||
| B3 | 226.1 − 228.1 | 2995 | 3.24 ± 0.12 | 0.037 | ||||
| B4 | 228.1 − 230.1 | 3014 | 3.25 ± 0.12 | 0.036 | ||||
| P | B1 | 212.1 − 214.1 | 3030 | 0.17 ± 0.05 | 0.30 | |||
| B2 | 214.1 − 216.1 | 3029 | 0.17 ± 0.05 | 0.30 | ||||
| B3 | 226.1 − 228.1 | 2995 | 0.18 ± 0.06 | 0.33 | ||||
| B4 | 228.1 − 230.1 | 3014 | 0.18 ± 0.06 | 0.33 | ||||
| Stokes V | B1 | 212.1 − 214.1 | 3030 | −0.011 ± 0.015 | 1.33 | |||
| B2 | 214.1 − 216.1 | 3029 | −0.012 ± 0.015 | 1.28 | ||||
| B3 | 226.1 − 228.1 | 2995 | −0.015 ± 0.016 | 1.07 | ||||
| B4 | 228.1 − 230.1 | 3014 | −0.015 ± 0.016 | 1.07 | ||||
| April 25 | 7:07 - 13:14 | 6.12 | Stokes I | B1 | 212.1 − 214.1 | 744 | 3.34 ± 0.07 | 0.021 |
| B2 | 214.1 − 216.1 | 744 | 3.36 ± 0.07 | 0.021 | ||||
| B3 | 226.1 − 228.1 | 744 | 3.36 ± 0.10 | 0.029 | ||||
| B4 | 228.1 − 230.1 | 743 | 3.36 ± 0.08 | 0.025 | ||||
| P | B1 | 212.1 − 214.1 | 744 | 0.14 ± 0.04 | 0.29 | |||
| B2 | 214.1 − 216.1 | 744 | 0.15 ± 0.04 | 0.28 | ||||
| B3 | 226.1 − 228.1 | 744 | 0.16 ± 0.05 | 0.31 | ||||
| B4 | 228.1 − 230.1 | 743 | 0.17 ± 0.05 | 0.30 | ||||
| Stokes V | B1 | 212.1 − 214.1 | 744 | −0.032 ± 0.014 | 0.44 | |||
| B2 | 214.1 − 216.1 | 744 | −0.032 ± 0.015 | 0.47 | ||||
| B3 | 226.1 − 228.1 | 744 | −0.036 ± 0.015 | 0.42 | ||||
| B4 | 228.1 − 230.1 | 743 | −0.038 ± 0.016 | 0.42 | ||||
Notes. Stokes V values are reported for completeness, but should be considered tentative as their levels fall below ALMA’s guaranteed accuracy for CP measurements.
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