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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 2.

RVs of the 10 PFS spectral chunks most affected by the transient stellar activity, plotted alongside the combined RVs from all chunks for comparison. Wavelength ranges are indicated in the plot for each chunk (star rest frame in air). The red regions denote the duration of the transient stellar activity. Note that the amplitude of activity in these chunks reaches thousands of m s−1. On this scale, the influence on the combined RVs is not visible.

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