Table A.1
Parameters of CX Tau observations at all the frequencies we considered.
| Wavelength & Observatory | Observation date (d/m/y) | Beam (arcsec) | Ftot (mJy) | RMS (mJy beam−1) | ∆Fstat(mJy) | ∆Ftot (mJy) | R68%(au) |
|---|---|---|---|---|---|---|---|
| (a) 0.85 mm SMA | 02/2004 - 01/2005 | ~15 | 25.0 | 6.0 | 6.0 | 6.5 | – |
| (★)0.9 mm ALMA Band 7 | 24/07/2015 23/07/2016 |
0.28 × 0.19 | 21.8 | 0.12 | 0.38 | 2.2 | 16.9 ± 0.1 |
| (b) 1.3 mm ALMA Band 6 | C40-5: 05/11/2016 C40-8: 25/09/2017 |
0.06 × 0.03 | 9.75 | 0.020 | 0.12 | 0.98 | 14.0 ± 0.3 |
| (c) 1.3 mm PdBI | 12/2010 - 02/2013 | 0.6 × 0.4 | 9.6 | 0.2 | 0.2 | 0.98 | – |
| (d) 3.5 mm PdBI | 07-08/2007 | ~3 – 4 | 1.01 | 0.13 | 0.13 | 0.16 | – |
| (★) 9.0mm VLA Ka-band | 12/10/2020 | 0.25 × 0.19 | 0.304 | 7 × 10−3 | 4 × 10−3 | 31 × 10−3 | – |
| (★) 1.3 cm VLA K-band | 09/04/2022 | 0.14 × 0.09 | 0.423 | 10 × 10−3 | 6 × 10−3 | 43 × 10−3 | < 9.2 ± 1.5 |
| (★) 2.0cm VLA Ku-band | 02-04/03/2020 | 1.7 × 1.6 | 0.108 | 3 × 10−3 | 2 × 10−3 | 11 × 10−3 | – |
| (★) 6.0cm VLA C-band | C conf: 20/02/2020 | 4.2 × 3.6 | < 17 × 10−3 | 8 × 10−3 | – | – | – |
| (★) 6.0cm VLA C-band | A conf: 09-11/01/2021 | 0.6 × 0.4 | < 12 × 10−3 | 2 × 10−3 | – | – | – |
Notes. (★)We have directly calibrated and analyzed these observations. For these data, the beam is taken from the images produced with Briggs weighting and robust 1. (a) (b) (c) (d) Values from Andrews & Williams (2005), Facchini et al. (2019), Piétu et al. (2014), and Ricci et al. (2010), respectively. Systematic calibration errors are assumed to be 10% of the total flux density, apart from VLA C-Band observations where we used a value of 5%. ALMA calibration errors are based on https://almascience.eso.org/documents-and-tools/cycle9/alma-technical-handbook, while VLA calibration errors follow the indications by NRAO at https://science.nrao.edu/facilities/vla/docs/manuals/oss/performance/fdscale. For the remaining observations, we refer to the respective papers.
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