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Photometric Variability and Rotation of β Pictoris b from JWST NIRCam Coronagraphic Imaging

Authors: Yifan Zhou, Beth A. Biller, Aarynn L. Carter, Marshall D. Perrin, Michael Poon, Genaro Suárez, Ben J. Sutlieff, Johanna M. Vos, Jason J. Wang, William O. Balmer, Marta L. Bryan, Anthony Boccaletti, Julien H. Girard, Eileen C. Gonzales, Jens Kammerer, Jarron M. Leisenring, Paulina. Palma-Bifani, Kevin R. Wagner, Dániel Apai, Mickäel Bonnefoy, Brendan P. Bowler, Kyle Franson, Pengyu Liu, Marcio Meléndez, Stanimir A. Metchev, Simon Petrus, Laurent Pueyo, Isabel Rebollido, Andrew J. Skemer, Xianyu Tan, Niall Whiteford

Yifan Zhou et al 2026 The Astronomical Journal 172 .

Provider: AAS Journals

Caption: Figure 3.

F210M light curve of the host star. Upper panel: the raw aperture photometry shows strong oscillation signals consistent with β Pic’s known oscillation periods. Instrument systematics induce apparent flux jumps. Lower panel: a Gaussian process successfully removes the systematic trend. The corrected light curve is well fit by four sine waves representing the strongest oscillation modes (red curve).

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