Table B.1
Overview of the imaging parameters for continuum and CO line observations.
| Continuum | 12CO | 13CO | C18O | |
|---|---|---|---|---|
| HD 9985 | ||||
| Beam size (arcsec×arcsec) | 0.58×0.45 | 0.58×0.46 | 0.61×0.47 | 0.61×0.47 |
| Beam PA (°) | 36.6 | 38.1 | 38.1 | 38.4 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 15.9 | 1.6 | 0.8 | 0.6 |
| HD 31305 | ||||
| Beam size (arcsec×arcsec) | 0.42×0.25 | 0.42×0.25 | 0.45×0.27 | 0.47×0.27 |
| Beam PA (°) | -0.5 | 0.1 | 5.6 | 4.9 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 21.3 | 2.7 | 1.4 | 1.2 |
| HD 112532 | ||||
| Beam size (arcsec×arcsec) | 0.57×0.41 | 0.58×0.42 | . . . | . . . |
| Beam PA (°) | -66.4 | -66.7 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 19.0 | 2.3 | . . . | . . . |
| HD 131960 | ||||
| Beam size (arcsec×arcsec) | 1.16×1.05 | 1.25×1.15 | . . . | . . . |
| Beam PA (°) | 81.8 | 76.8 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 27.3 | 4.1 | . . . | . . . |
| HD 141960 | ||||
| Beam size (arcsec×arcsec) | 0.51×0.40 | 0.53×0.40 | . . . | . . . |
| Beam PA (°) | -77.6 | -76.4 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 14.9 | 1.8 | . . . | . . . |
| HD 144277 | ||||
| Beam size (arcsec×arcsec) | 0.63×0.54 | 0.65×0.54 | . . . | . . . |
| Beam PA (°) | -81.6 | -82.4 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 18.0 | 2.2 | . . . | . . . |
| HD 145101 | ||||
| Beam size (arcsec×arcsec) | 0.51×0.37 | 0.52×0.37 | 0.54×0.42 | 0.54×0.42 |
| Beam PA (°) | -74.2 | -77.9 | -71.2 | -71.0 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 15.1 | 1.9 | 1.0 | 0.8 |
| HD 152989 | ||||
| Beam size (arcsec×arcsec) | 0.37×0.28 | 0.38×0.29 | 0.39×0.32 | 0.40×0.32 |
| Beam PA (°) | 88.5 | 84.6 | 83.0 | 84.9 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 16.1 | 2.1 | 1.2 | 0.9 |
| HD 155853 | ||||
| Beam size (arcsec×arcsec) | 0.57×0.40 | 0.51×0.38 | 0.57×0.41 | 0.58×0.41 |
| Beam PA (°) | -71.7 | -72.6 | -73.7 | -74.5 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 15.3 | 2.4 | 1.0 | 0.9 |
| HD 159595 | ||||
| Beam size (arcsec×arcsec) | 0.45×0.39 | 0.42×0.37 | . . . | . . . |
| Beam PA (°) | -69.7 | -73.9 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 19.5 | 5.0 | . . . | . . . |
| HD 170116 | ||||
| Beam size (arcsec×arcsec) | 0.49×0.41 | 0.50×0.41 | 0.52×0.42 | 0.52×0.42 |
| Beam PA (°) | -70.3 | -74.4 | -74.0 | -74.2 |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 13.0 | 1.7 | 0.9 | 0.7 |
| HD 176497 | ||||
| Beam size (arcsec×arcsec) | 0.51×0.32 | 0.49×0.31 | . . . | . . . |
| Beam PA (°) | 81.7 | 82.5 | . . . | . . . |
| rms noise (μJy beam−1/mJy beam−1 ch−1) | 13.0 | 1.7 | . . . | . . . |
Notes. For systems where we detected circumstellar CO gas (even around the companion star, as in the case of HD 31305), the imaging parameters (size and position angle of the synthesised beam, as well as 1 σ rms noise levels) are provided for all three CO isotopologs in addition to the continuum, while for the other objects the parameters are listed only for the continuum and 12CO measurements. The quoted parameters refer to the naturally weighted data sets for HD 144277 and HD 176497, the tapered data for HD 131960 (Gaussian taper with a size of 1″), and Briggs weighted data (robust=0.5) for the rest of the sample. For the 12CO measurements of HD 155853 and HD 159595, we consider the data cubes produced by neglecting the shortest baseline visibilities (see Sect. 5).
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