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Table 1

Flux densities of the NE image and flux ratios measured at the epochs of our ALMA observations.

Band Date Julian day Time Frequency Flux of NE Flux
(–2 456 026.8) (UTC) (GHz) image (Jy) ratio

B6–250 GHz 09 Apr. 2012 0.0 06:23–06:57 243.2 0.87(0.09) 1.236(0.001)
245.1 0.86(0.09) 1.238(0.001)
257.6 0.85(0.09) 1.232(0.001)
260.5 0.84(0.08) 1.230(0.001)
B6–250 GHz 09 Apr. 2012 0.1 07:42–08:16 243.2 0.87(0.09) 1.234(0.001)
245.1 0.86(0.09) 1.238(0.001)
257.6 0.83(0.08) 1.236(0.001)
260.5 0.83(0.08) 1.240(0.001)
B7–290 GHz 11 Apr. 2012 2.0 06:06–06:59 282.6 0.73(0.07) 1.224(0.001)
284.4 0.73(0.07) 1.224(0.001)
294.6 0.70(0.07) 1.223(0.001)
296.4 0.71(0.07) 1.224(0.001)
B7–290 GHz 11 Apr. 2012 2.1 07:47–08:40 282.6 0.79(0.08) 1.251(0.002)
284.4 0.79(0.08) 1.251(0.002)
294.6 0.77(0.08) 1.252(0.001)
296.4 0.78(0.08) 1.252(0.001)
B3–100 GHz 22 May 2012 43.1 09:23–10:00 92.1 1.89(0.09) 1.438(0.002)
94.0 1.86(0.09) 1.440(0.002)
104.1 1.75(0.09) 1.444(0.002)
106.0 1.73(0.09) 1.444(0.002)
B6–250 GHz 23 May 2012 43.9 04:38–05:14 243.3 0.96(0.10) 1.493(0.001)
245.1 0.95(0.10) 1.494(0.001)
257.6 0.91(0.09) 1.497(0.001)
260.5 0.91(0.09) 1.497(0.001)
B7–300 GHz 23 May 2012 44.0 05:47–06:21 291.6 0.86(0.09) 1.490(0.001)
293.5 0.85(0.08) 1.488(0.001)
303.6 0.84(0.08) 1.489(0.001)
305.5 0.83(0.08) 1.487(0.001)
B7–300 GHz 23 May 2012 44.1 09:14–09:51 291.6 0.86(0.09) 1.530(0.002)
293.5 0.85(0.08) 1.533(0.002)
303.6 0.84(0.08) 1.534(0.002)
305.5 0.83(0.08) 1.536(0.002)
B7–300 GHz 23 May 2012 44.2 10:27–11:04 291.6 0.85(0.08) 1.532(0.002)
293.5 0.83(0.08) 1.535(0.002)
303.6 0.83(0.08) 1.540(0.002)
305.5 0.82(0.08) 1.540(0.002)
B7–300 GHz 04 Jun. 2012 56.0 07:18–07:52 291.6 0.77(0.08) 1.257(0.001)
293.5 0.76(0.08) 1.257(0.001)
303.6 0.74(0.07) 1.258(0.001)
305.5 0.74(0.07) 1.259(0.001)
B7–300 GHz 04 Jun. 2012 56.1 08:32–09:07 291.6 0.77(0.08) 1.260(0.001)
293.5 0.77(0.08) 1.261(0.001)
303.6 0.71(0.07) 1.261(0.001)
305.5 0.74(0.07) 1.261(0.001)
B3–100 GHz 04 Jun. 2012 56.1 09:42–10:18 92.1 1.79(0.09) 1.338(0.002)
94.0 1.76(0.09) 1.331(0.002)
104.1 1.64(0.08) 1.316(0.002)
106.0 1.62(0.08) 1.315(0.002)
B6–250 GHz 15 Jun. 2012 67.0 07:18–07:54 243.3 0.91(0.09) 1.287(0.001)
245.1 0.91(0.09) 1.289(0.001)
257.6 0.86(0.09) 1.288(0.001)
260.5 0.85(0.09) 1.288(0.001)
B3–100 GHz 15 Jun. 2012 67.1 08:53–09:29 92.1 1.86(0.09) 1.317(0.002)
94.0 1.84(0.09) 1.316(0.002)
104.1 1.72(0.09) 1.308(0.001)
106.0 1.70(0.08) 1.306(0.001)

Notes.

(†)

Frequency at the center of each ALMA spectral window. We assume an absolute flux accuracy of 5% at frequencies ~100 GHz (B3) and 10% at frequencies between ~200 and ~300 GHz (B6 and B7).

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