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Spin–Orbit Geometry of AU Mic b and c from Back-to-back Transits Observed Contemporaneously with Magellan PFS, LCOGT, and CHEOPS

  • Authors: Zitao Lin, Gyula M. Szabó, Krzysztof Sz. Zieliński, Zhen Guo, Zoltán Garai, R. Paul Butler, Alexis Brandeker, Johanna K. Teske, Davide Gandolfi, Haochuan Yu, Nicolas Billot, Suzanne Aigrain, Michael Cretignier, Liang Wang, Xuan Mao, Wei M. Yuan, Hongpeng Lu, Jiayin Li, Yann Alibert, Ádám Boldog, Vincent Bourrier, Giovanni Bruno, Jeffrey D. Crane, Fei Dai, Olivier D. S. Demangeon, Alexis Heitzmann, Zhecheng Hu, Pradip Karmakar, Levente Kriskovics, Monika Lendl, He Y. Liu, Pierre F. L. Maxted, Hugh P. Osborn, Gaetano Scandariato, Stephen A. Shectman, Sérgio G. Sousa, Soléne Ulmer-Moll, Mu-Tian Wang, Thomas G. Wilson, Sharon X. Wang

Zitao Lin et al 2026 The Astrophysical Journal Letters 1005 .

  • Provider: AAS Journals

Caption: Figure 7.

CHEOPS light curves, PFS RVs, and Einstein Probe X-ray time series observed between 2024 August 24 and 26. For clarity, long-term stellar rotation trends have been removed from the PFS RVs and CHEOPS light curves. Gray shaded regions denote the transit window for AU Mic b and c. Red shaded regions highlight four stellar activity events, which are further discussed in Appendix C.

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