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Table 1

HD 169142 observational parameters.

Dates observed 2015 August 30
baselines 13–1445 m | 10–1120 kλ

C18O 2–1 13CO 2–1 12CO 2–1
Rest frequency [GHz] 219.56035 220.39868 230.53800
Synthesized beam [FWHM]
Position angle –74.̊5 –75.̊2 –72.̊8
Channel width [km s-1] 0.084 0.084 0.040
rms noise (per channel) [mJy beam-1] 6 8 13
Peak emission [mJy beam-1] 100 200 540
Integrated fluxa [Jy km s-1] 3.9±0.5 7.6±0.6 14.0±2.0
Weighting natural

Continuum frequency [GHz] 233.0
Synthesized beam [FWHM] 0.̋28 × 0.̋18 0.̋24 × 0.̋16 0.̋22 × 0.̋14
Position angle –77.̊9 –78.̊3 –80.̊0
rms noise [mJy beam-1] 0.07 0.26 0.11
Peak emission [mJy beam-1] 17 15 13
Integrated flux [mJy] 232±23 226±23 226±23
Weighting Briggs, robust = 0.5 Uniform Superuniform

Notes. Flux calibration accuracy is taken to be 10%.

(a)

Integrated over a circular aperture of 3′′ radius.

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