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Evolution of Stellar Activity and Habitable Zone. IV. Calcium II Infrared Triplet Activity from Open Clusters and White Dwarf Binaries

  • Authors: Shidi Zhang, Song Wang, Henggeng Han, Wenyuan Cui

Shidi Zhang et al 2026 The Astrophysical Journal 1011 .

  • Provider: AAS Journals

Caption: Figure 2.

H-R diagram of the final sample for methods 1 (left panel) and 2 (right panel). Member stars from OCs are shown in red dots, while MS stars in WD-MS binaries are marked in black dots.

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