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Deep Limits on Planets Exterior to HR 8799’s Known Planetary System with the James Webb Space Telescope

  • Authors: Bryden Geoffrey, Llop-Sayson Jorge, Beichman Charles A., Balmer William O., Kammerer Jens, Leisenring Jarron M., Ygouf Marie, Krist John, Faramaz-Gorka Virginie, Greenbaum Alexandra Z., Girard Julien, Perrin Marshall, Pueyo Laurent, van der Marel Roeland, Meyer Michael, Johnstone Doug, Hodapp Klaus, Rieke Marcia

Bryden Geoffrey et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 4.

The emission from planet b in the F356W (top) and F444W (bottom) filters is well matched to a simulated PSF, both the central W-shaped profile and the hexasymmetric outlier spots. Subtracting the PSF model (center) from the data (left) leaves clean residuals (right). The photometry and astrometry for this best-fit model are given in Table 4.

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