Image Details
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.
© 2022. The Author(s). Published by the American Astronomical Society.