A pilot very long baseline interferometry study of the SQUAB quasar sample featuring multiple Gaia detections

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Table A.1.

VLBI results of each source feature in this paper.

Source	Mark	Position	Δ_ra	Δ_dec	Freq.	Peak	Offset_RA	Offset_Dec	σ	S_int
(J2000)		(J2000)	(mas)	(mas)	(GHz)	(mJy/b)	(mas)	(mas)	(μJy/b)	(mJy)
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)	(11)
J1433+4842	GAIA1	14: 33: 33.0316+48: 42: 27.7752	0.3	0.3	1.63	1.16±0.07	−0.8±0.2	−1.8±0.2	38	1.19±0.08
...	...	...	...	...	4.87	0.86±0.05	0.5±0.2	0.5±0.1	17	0.92±0.05
...	GAIA2	14: 33: 32.9630+48: 42: 27.4198	4.9	4.2	1.63	≤0.11	/	/	21	/
...	...	...	...	...	4.87	≤0.09	...	...	17	/
...	EXT1	14: 33: 32.9876+48: 42: 27.5872	/	/	1.63	1.81±0.09	...	...	29	19.20±1.00
...	...	...	...	...	4.87	0.28±0.02	...	...	19	3.39±0.29
J1520+4211	GAIA1	15: 20: 39.7218+42: 11: 11.4524	0.2	0.3	1.63	32.50±1.63	0.7±0.1	−3.9±0.1	29	42.37±2.12
...	...	...	...	...	4.87	25.96±1.30	1.0±0.1	−1.0±0.1	13	28.90±1.45
...	GAIA2	15: 20: 39.6527+42: 11: 10.6437	0.3	0.3	1.63	≤0.11	/	/	22	/
...	...	...	...	...	4.87	≤0.07	...	...	13	...
J0928+5707	GAIA1	09: 28: 53.5310+57: 07: 35.9477	0.5	0.4	1.63	3.97±0.20	−0.1±0.2	2.3±0.2	24	4.09±0.21
...	...	...	...	...	4.87	1.99±0.10	−0.3±0.2	0.9±0.2	18	2.34±0.12
...	GAIA2	09: 28: 53.4853+57: 07: 34.9952	0.3	0.2	1.63	≤0.12	/	/	24	/
...	...	...	...	...	4.87	≤0.09	...	...	18	...

Notes. Column 1: Target name. Column 2: Feature marks for each source. Column 3: J2000 coordinate for each Gaia position (for EXT1, the position is from its radio peak). Columns 4 and 5: The position error of the Gaia coordinate along RA and Dec. Column 6: Frequency of the image. Column 7: The peak intensity of the image. Columns 8 and 9: The RA and Dec offsets of the VLBI core component with respect to the Gaia position, the errors refer to the positional uncertainties derived from the VLBI imaging and model fitting (see Sect. 3). Column 10: The post-CLEAN rms noise of the image within each feature. Column 11: The total flux density of the component at the position.

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