Prominent changing core shift direction in wide frequency range (OJ287, 5 - 43 GHz). Currently the core shift is along some direction.

Recovery tests with "core + 2 jet components" model (both 3 and 5 bands) showed that multi-frequency bam works with:
50k new level interval, 30 backtracking scale length.

Phase centers should nearly coincide with cores. Thus, image shift could be equal to the core "minus" core position plus some N(0, some small (~0.1 mas) distance that could depend on band). This is an additional prior assumption. Currently, image shift and core shift are independent.

https://learn.microsoft.com/en-us/cpp/cpp/move-constructors-and-move-assignment-operators-cpp?view=msvc-170

See Livingstone & Zanella paper.

However i need ant_i and ant_j in txt-file. Start from branch norj_speedup.

k_r != k_theta in general case.

For MF-bam.

When working with self-calibrated data.

How to handle spectra of components if total flux is being kept equal to e.g. 1 Jy? On the other hand - no need in per-band image shifts.