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Paving the Road to the Habitable Worlds Observatory with High-resolution Imaging. I. New and Archival Speckle Observations of Potential HWO Target Stars

  • Authors: Zachary D. Hartman, Catherine A. Clark, Michael B. Lund, Kathryn V. Lester, José A. Caballero, Steve B. Howell, David Ciardi, Sarah Deveny, Mark E. Everett, Elise Furlan, Venu Kalari, Colin Littlefield, Andrew W. Stephens, Jennifer A. Burt, Guillaume Huber, Rachel Matson, Eric E. Mamajek, Noah Tuchow

Zachary D. Hartman et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 7.

Orbit fit for HD 212330/TIC 259291108 using the astrometric data from S. R. Kane et al. (2019) at epoch 2017.4 and A. Tokovinin (2023) at epoch 2022.4, which are shown as purple diamonds, and the radial velocity fit from S. R. Kane et al. (2019). The black line represents the best fit, while the gray lines represent possible solutions within 2σ. The right panels show the separation and position angle of the orbit as a function of epoch. The × symbol shows the predicted position of the stellar companion at the time of the 2020 Zorro observations, which is consistent with our fit to the data.

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