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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 1.

Filter selection and observation sequence for the β Pic b monitoring campaign. Top: transmission functions of the F210M (blue) and F410M (orange) filters overlaid on the probed atmospheric pressure of β Pic b (black). The probed pressure curve is derived assuming a T_eff = 1700 K cloudy Exo-Rem model (B. Charnay et al. 2018). Both filters probe the K- and L-band continuum at similar photospheric pressure levels. Bottom: observation sequence comprising two telescope rolls of 7.15 hr each, separated by a 1.87 hr gap, with simultaneous F210M (blue) and F410M (red) exposures.

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