Hourly radio variability of PDS 70c from time-differential photometry

Open Access

Table A.1.

Summary of image properties and flux densities for PDS 70c (F_B7) in the IB17 dataset, as obtained in the sky images.

Date	Beam^(a)	Noise^(b)	Peak^(c)	Beam fit^(d)	Gauss fit^(e)
	mas	μJy	μJy	μJy	μJy	mas
2/12/2017	64 × 41	44	147 ± 44^(f)	⋯	⋯	⋯
3/12/2017	63 × 50	51	94 ± 51^(f)	⋯	⋯	⋯
6/12/2017	64 × 58	65	370 ± 65	502 ± 65	878 ± 210	$111_{- 10}^{+ 17} \times 79_{- 12}^{+ 12}$ $Mathematical equation: $ 111^{+17}_{-10} \times 79^{+12}_{-12} $$
All	62 × 46	30	172 ± 30	250 ± 30	⋯^(g)	⋯^(g)

Notes.

^(a)

Elliptical Gaussian fit to the beam.

^(b)

Standard dispersion of the residual images (i.e. 1σ noise).

^(c)

F_B7 from peak intensity under PDS 70c in restored maps.

^(d)

F_B7 from fitting the elliptical Gaussian clean beam.

^(e)

F_B7 from fitting an elliptical Gaussian. The best fit Gaussian full-width-at-half-maximum along major and minor axis are given in the format BMAJ×BMIN.

^(f)

Non-detection, we report the intensity at the expected position of PDS 70c.

^(g)

An elliptical Gaussian fit is not possible because the source is confused with the bright ring.

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