From traffic jams to roadblocks: The outer regions of TW Hya with ALMA Band 8

Open Access

Table 1

Imaging results at Bands 3, 4, 6, 7 and 8.

Band	Central freq. (GHz)	Wavelength (mm)	Beam dimensions	rms (µJy beam⁻¹)	Peak S/N	Total flux density (mJy)^(a)
3	97.5	3.08	0.05″ × 0.05″, PA = 0.0°	5.3	137.26	52.97 ± 0.21
4	145.0	2.07	0.05″ × 0.05″, PA = 0.0°	11.0	85.21	150.89 ± 0.44
6	233.0	1.29	0.05″ × 0.05″, PA = 0.0°	7.1	349.23	590.32 ± 0.28
7	346.8	0.865	0.05″ × 0.05″, PA = 0.0°	23.9	213.18	1559.72 ± 0.96
8	458.6	0.654	0.784″ × 0.612″, PA = 91.04°	220.0	3838.64	3029.85 ± 0.79

Notes. ^(a)The uncertainty is calculated as the rms multiplied by the square root of the number of beams in the mask. ~10% flux calibration uncertainty is not included.

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