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Table 4.
Core-shift measurements for each pair of frequencies.
| ν2 (GHz) | ν1 (GHz) | Δzcore (mas) | Angle (°) | ρmax |
|---|---|---|---|---|
| Adjacent frequency pairs | ||||
| 23.88 | 15.15 | 0.136 ± 0.033 | 180.0 | 0.984 |
| 15.15 | 7.65 | 0.247 ± 0.067 | 166.0 | 0.999 |
| 7.65 | 4.15 | 0.201 ± 0.120 | 153.4 | 0.999 |
| 4.15 | 1.55 | 0.923 ± 0.314 | 162.3 | 0.997 |
| Other frequency pairs | ||||
| 23.88 | 7.65 | 0.361 ± 0.067 | 175.2 | 0.996 |
| 23.88 | 4.15 | 0.489 ± 0.120 | 169.4 | 0.989 |
| 23.88 | 1.55 | – | – | – |
| 15.15 | 4.15 | 0.437 ± 0.120 | 164.1 | 0.995 |
| 15.15 | 1.55 | – | – | – |
| 7.65 | 1.55 | 0.955 ± 0.314 | 174.0 | 0.971 |
Notes. Columns, from left to right: (1), (2) observing frequencies; (3) magnitude of the core-shift; (4) direction of the core-shift; (5) maximum cross-correlation coefficient.
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