Table 4
Astrometry of detected radio sources.
Star ID | Epoch | RA | σa (µs) | Dec | σδ (µas) | ![]() |
∆δradio (″) | ∆θradio (″) | ∆α* (mas) | ∆δ (mas) | ∆θ (mas) | σsys (mas) | ∆λ (au) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
V 875 Per | B1 | 02h52m17.s687958 | 3.3 | +36°16′47″.407545 | 60 | 0.06 ± 0.10 | 0.02 ± 0.07 | 0.06 ± 0.10 | 0.19 ± 0.16 | −0.61 ± 0.12 | 0.6 ± 0.1 | 0.14 | 0.10 ± 0.06 |
B2 | 02h52m17.s687982 | 3.8 | +36°16′47″.407500 | 85 | |||||||||
B1+B2 | 02h52m17.s687968 | 2.7 | +36°16′47″.407501 | 49 | |||||||||
HD 22213 | C1 | 03h34m16.s458216 | 22 | −12°04′08″.026964 | 374 | −0.09 ± 0.10 | −0.07 ± 0.14 | 0.11 ± 0.12 | −1.0 ± 0.3 | +0.2 ± 0.4 | 1.1 ± 0.3 | 0.11 | 0.05 ± 0.02 |
C2 | 03h34m16.s458292 | 1.9 | −12°04′08″.026581 | 79 | |||||||||
C1+C2 | 03h34m16.s458287 | 2.5 | −12°04′08″.026752 | 98 | |||||||||
HD 285281 | D1 | 04h00m31.s076436 | 14 | + 19°35′20″.650376 | 580 | −0.19 ± 0.18 | 0.04 ± 0.19 | 0.19 ± 0.18 | +0.3 ± 0.2 | +0.8 ± 0.6 | 0.9 ± 0.5 | 0.16 | 0.12 ± 0.06 |
D2 | 04h00m31.s076421 | 8.6 | + 19°35′20″.648346 | 332 | |||||||||
D1+D2 | 04h00m31.s076421 | 7.2 | + 19°35′20″.649016 | 317 | |||||||||
AI Lep | F1 | 05h40m20.s759902 | 4.8 | −19° 40′11″.183095 | 152 | 0.55 ± 0.37 | 0.32 ± 0.42 | 0.64 ± 0.39 | +0.2 ± 0.1 | +0.4 ± 0.2 | 0.5 ± 0.1 | 0.10 | 0.04 ± 0.01 |
F2 | 05h40m20.s759861 | 18 | −19°40′11″.182392 | 465 | |||||||||
F1+F2 | 05h40m20.s759892 | 8.6 | −19°40′11″.182835 | 238 | |||||||||
HD62237 | G1 | 07h42m26.s562160 | 8.4 | −16°17′00″.668793 | 321 | −0.11 ± 0.12 | 0.11 ± 0.23 | 0.16 ± 0.19 | +12.3 ± 0.5 | −23.6 ± 0.6 | 26.6 ± 0.6 | 0.10 | 3.32 ± 0.08 |
G2 | 07h42m26.s562170 | 5.8 | −16°17′00″.668809 | 230 | |||||||||
G1+G2 | 07h42m26.s562169 | 6.0 | −16°17′00″.668891 | 214 | |||||||||
SAO 135659 | G1 | 08h13m50.s953026 | 1.9 | −07°38′25″.622119 | 76 | −0.04 ± 0.03 | 0.04 ± 0.03 | 0.06 ± 0.03 | −10.5 ± 1.2 | −72.6 ± 1.0 | 73.3 ± 1.0 | 0.14 | 3.67 ± 0.06 |
G2 | 08h13m50.s953037 | 2.3 | −07°38′25″.622112 | 98 | |||||||||
G1+G2 | 08h13m50.s953031 | 1.7 | − 07°38′25″.622091 | 65 | |||||||||
HD 82159 | H1 | 09h30m35.s542606 | 5.5 | + 10°36′05″.979934 | 151 | −0.04 ± 0.03 | 0.02 ± 0.03 | 0.04 ± 0.03 | −1.24 ± 0.2 | +0.2 ± 0.2 | 1.3 ± 0.2 | 0.18 | 0.05 ± 0.01 |
H2 | 09h30m35.s542401 | 4.6 | + 10°36′05″.979351 | 145 | |||||||||
H1+H2 | … | … | … | … | |||||||||
HD82558 | H1 | 09h32m25.s204609 | 5.9 | −11°11′03″.942747 | 185 | −0.07 ± 0.29 | 0.03 ± 0.45 | 0.07 ± 0.31 | −0.6 ± 0.2 | +0.2 ± 0.2 | 0.7 ± 0.2 | 0.06 | 0.010 ± 0.003 |
H2 | 09h32m25.s204348 | 4.9 | −11°11′03″.940469 | 183 | |||||||||
H1+H2 | |||||||||||||
HD 199143 | J1 | 20h55m47.s759095 | 20 | −17°06′52″.304352 | 441 | 0.47 ± 0.15 | 0.48 ± 0.15 | 0.67 ± 0.15 | −2.6 ± 0.3 | +3.6 ± 0.5 | 4.4 ± 0.4 | 0.27 | 0.20 ± 0.02 |
J2 | 20h55m47.s759173 | 24 | −17°06′52″.305210 | 608 | |||||||||
J1+J2 | 20h55m47.s759121 | 15 | −17°06′52″.304406 | 333 | |||||||||
GJ4199 | K1 | 21h31m01.s925936 | 9.2 | +23°20′04″.291167 | 144 | 0.05 ± 0.05 | −0.06 ± 0.05 | 0.08 ± 0.05 | 0.6 ± 0.1 | +1.3 ± 0.2 | 1.4 ± 0.2 | 0.19 | 0.03 ± 0.01 |
K2 | 21h31m01.s925974 | 11 | +23°20′04″.291129 | 190 | |||||||||
K1+K2 | 21h31m01.s925953 | 6.7 | +23°20′04″.291177 | 112 |
Notes. Columns are (from left to right) the target name, epoch ID as in Table 3, measured positions in the VLBA images and their statistical errors derived from JMFIT, and the estimated offset between the radio source detected with the VLA and the radio source detected with the VLBA (, ∆δradio, and ∆θradio). The offsets ∆α*, ∆δ, and ∆θ are the angular separations between the radio source (VLBA) and the Gaia DR3 predicted position at the observed epoch in right ascension, declination, and total, respectively. The column σsys is the position systematic error expected from the phase difference of the target and its phase calibrator, given their angular separation. Finally, column ∆λ, which is derived from ∆θ, is the linear separation in astronomical units at the corresponding distance (see Table 1).
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