Investigating 39 Galactic Wolf-Rayet stars with VLTI/GRAVITY - Uncovering a long-period binary desert

Open Access

Fig. C.3.

The fine grid search for a companion for WR 48. Here, the wide companion is brighter than the WR, so we fixed the companion at the origin and searched the WR position across the grid. We found the global minimum for $χ_{red}^{2}$ $\chi^{2}_{\mathrm{red}}$ at ΔE = 1.59 ± 0.03 mas and ΔN = −12.56 ± 0.06 mas with the wide companion set at the origin. The color scale denotes the $χ_{red}^{2}$ $\chi^{2}_{\mathrm{red}}$ across the grid.

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