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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 5.

The AMR of the MW’s high-α disk, using subgiant stars from M. Xiang & H.-W. Rix (2022). The row-normalized black histogram shows the marginal distribution of stellar ages at each metallicity. The shaded red band indicates the metallicity of TOI-7019. Marginal age distributions are shown in the top panel for the entire subgiant sample, the high-α disk selection, and high-α disk stars with metallicities similar to TOI-7019.

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