Free Access
Table 1
HD 163296 observational parameters.
| Project 2013.1.01268.S | |||
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| Dates observed | 2014 July 27, 28, 29 | ||
| Baselines | 21–795 m | 16–598 kλ | ||
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| H2CO 303–202 | H2CO 322–221 | H2CO 321–220 | |
| Rest frequency [GHz] | 218.222 | 218.476 | 218.760 |
| Synthesized beam [FWHM] | 0.54″ × 0.42″ | 0.54″ × 0.42″ | 0.53″ × 0.42″ |
| Position angle | 89.3° | 86.6° | 87.9° |
| Channel width [km s-1] | 0.084 | 0.084 | 0.084 |
| rms noisea [mJy beam-1] | 1.8 | 2.6 | 2.6 |
| Integrated flux [Jy km s-1] | 0.64 ± 0.06b | >0.036, <0.27c | >0.032, <0.31c |
| Weighting | natural | natural | natural |
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| Continuum frequency [GHz] | 225.0 | ||
| Synthesized beam [FWHM] | 0.42″ × 0.33″ | ||
| Position angle | 77.5° | ||
| rms noise [mJy beam-1] | 0.05 | ||
| Integrated flux [mJy] | 652 ± 65 | ||
| Weighting | Briggs, robust = 0.5 | ||
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| Project 2011.1.00010.SV | |||
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| Dates observed | 2012 June 09, 23, July 07 | ||
| Baselines | 21–536 m | 16–402 kλ | ||
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| C18O 2–1 | |||
| Rest frequency [GHz] | 219.560 | ||
| Synthesized beam [FWHM] | 0.87″ × 0.71″ | ||
| Position angle | 64.0° | ||
| Channel width [km s-1] | 0.334 | ||
| rms noisea [mJy beam-1] | 4.2 | ||
| Integrated fluxd [Jy km s-1] | 7.4 ± 0.7 | ||
| Weighting | natural | ||
Notes. Flux errors are dominated by systematic uncertainties, taken to be ~10%.
(c)
Line flux lower limit derived from the peak σ-ratio based on matched-filter detections. Upper limits are 3σI where σI is defined in Sect. 3.1.
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