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Detection and Astrometry of the Ba–Bb Subsystem in α Piscium: First Dual-field Interferometry at the CHARA Array

  • Authors: Narsireddy Anugu, Robert Klement, John D. Monnier, Douglas R. Gies, Gail H. Schaefer, Stefan Kraus, Sebastián Carrazco-Gaxiola, Akshat S. Chaturvedi, Mayra Gutierrez, Becky Flores, Jeremy Jones, Colin Kane, Rainer Köhler, Karolina Kubiak, Olli W. Majoinen, Nicholas J. Scott, Kayvon Sharifi

Narsireddy Anugu et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 11.

Sector-by-sector Lomb–Scargle periodograms for α Psc. Each curve (offset vertically for clarity) corresponds to one TESS sector. All five sectors exhibit a dominant peak at 0.7455d, with a secondary peak at 1.490975 days. No significant power is detected at longer periods.

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