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Deep Orbital Search for Additional Planets in the HR 8799 System

  • Authors: William Thompson, Christian Marois, Clarissa R. Do Ó, Quinn Konopacky, Jean-Baptiste Ruffio, Jason Wang, Andy J. Skemer, Robert J. De Rosa, Bruce Macintosh

William Thompson et al 2023 The Astronomical Journal 165 .

  • Provider: AAS Journals

Caption: Figure 2.

Combined images from each epoch, processed with SNAP and cropped to show the inner planets. The images are shown on a linear scale with correct throughput, normalized using the flux of planet d. Values outside the linear colorscale are shown in gray. Note that, when using SNAP, the forward-processed images should not be used for evaluating the noise. Close to the star, the PSFs of any potential planet can produce secondary positive and negative ghosts at other position angles. Instead, we calculate contrast curves using matching backward-rotated reductions. The top panels are comprised of archival data, while the bottom panels are the new campaign. Significant orbital motion is visible between epochs. The full images including planet b are listed in Appendix.

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