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Table 1

HD 163296 observational parameters.

Project 2013.1.01268.S

Dates observed 2014 July 27, 28, 29
Baselines 21–795 m | 16–598 kλ

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

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

Project 2011.1.00010.SV

Dates observed 2012 June 09, 23, July 07
Baselines 21–536 m | 16–402 kλ

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%.

(a)

Noise values are per image channel.

(b)

Line flux derived from spatial and spectral integration after masking pixels with <3σ emission.

(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.

(d)

Line flux derived from spatial and spectral integration over a 5.6 aperture and velocity channels 0.87–12.1 km s-1.

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