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Model-Based Retrieval of Four Years of JWST/NIRCam Wavefronts
Shrishmoy Ray, Benjamin Pope, Louis Desdoigts +8
The fidelity of data recovered by the James Webb Space Telescope (JWST) depends on precise monitoring of the mirror segments' surfaces and alignment. To this end, every few days th…
Calibration of an Analog-to-Digital Conversion Nonlinearity in JWST/NIRISS
Shashank Dholakia, Shishir Dholakia, Benjamin J. S. Pope +4
We quantify an unusual flux-dependent systematic which is periodic in raw counts in flight data from the James Webb Space Telescope's Near Infrared Imager and Slitless Spectrograph…
Differentiable Optics with dLux II: Optical Design Maximising Fisher Information
Louis Desdoigts, Benjamin Pope, Michael Gully-Santiago +1
The design of astronomical hardware operating at the diffraction limit requires optimisation of physical optical simulations of the instrument with respect to desired figures of me…
Coronagraphic Data Post-processing Using Projections on Instrumental Modes
Yinzi Xin, Laurent Pueyo, Romain Laugier +4
Directly observing exoplanets with coronagraphs is impeded by the presence of speckles from aberrations in the optical path, which can be mitigated in hardware with wavefront contr…