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OGLE-2016-BLG-1195 AO: Lens, Companion to Lens or Source, or None of the Above?

  • Authors: Andrew Gould, Yossi Shvartzvald, Jiyuan Zhang, Jennifer C. Yee, Sebastiano Calchi Novati, Weicheng Zang, Eran O. Ofek

Andrew Gould et al 2026 The Astronomical Journal 166 .

  • Provider: AAS Journals

Caption: Figure 3.

Data (colored points) and two representative models of OGLE-2016-BLG-1195, a central-caustic model (black) that was originally found in the discovery papers (Bond et al. 2017; Shvartzvald et al. 2017), and a new resonant-caustic model. The cumulative Δχ 2 function shows that the new resonant model is strongly disfavored, primarily due to its failure to match the anomalous region, 7569.08 – 7569.22. However, rejection of this model would have been less decisive based on the partial data sets in each discovery paper. See also Figure 4.

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