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An Ancient Brown Dwarf Transiting a Metal-poor Thick-disk Star

  • Authors: Jéa Adams Redai, Vedant Chandra, Samuel W. Yee, Victoria DiTomasso, Sean Andrews, Karin Öberg, David Charbonneau, Rebecca Woody, David W. Latham, Allyson Bieryla, Samuel N. Quinn, Theron W. Carmichael, Chih-Chun Hsu, Noah Vowell, Jason J. Wang, Sebastian Zieba, Paul Benni, Karen A. Collins, David R. Ciardi, Julian van Eyken, William Fong, Michael B. Lund, Andrei M. Tatarnikov

Jéa Adams Redai et al 2026 The Astrophysical Journal Letters 1002 .

  • Provider: AAS Journals

Caption: Figure 9.

Ground-based transit light curves of TOI-7019b obtained with KeplerCam on the FLWO 1.2 m telescope in B and ﹩{i}^{{\prime} }﹩ filters and with the Acton Sky Portal 0.36 m telescope in ﹩{r}^{{\prime} }﹩ band. The individual light curves are shown in color, with the best-fit transit model from our joint analysis shown in black. All observations capture the transit ingress and confirm that the events occur on the target star and are achromatic. Residuals after subtracting the best-fit model are shown below each panel.

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