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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 8.

PMOIRED binary model fitting residuals for the first MYSTIC epoch (MJD = 60918). Left: closure phase data (T3PHI, colored points) and model fit (dashed gray lines) in the upper panel, and the residuals (σ) in the lower panel. Right: same for the visibility-squared data (V2) and model fit. “Bmax” is the maximum projected baseline length for each telescope triangle, B is the projected baseline length for each pair of telescopes, and λ is the observed wavelength.

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