Samuel Ronayette

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In large-scale spatial surveys, such as the forthcoming ESA Euclid mission, images may be undersampled due to the optical sensors sizes. Therefore, one may consider using a super-resolution (SR) method to recover aliased frequencies, prior to further analysis. This is particularly relevant for point-source images, which provide direct measurements of the(More)
In this article, we describe the MIRI Imager module (MIRIM), which provides broadband imaging in the 5 – 27 μm wavelength range for the James Webb Space Telescope. The imager has a 0. ′′11 pixel scale and a total unobstructed view of 74′′ × 113′′. The remainder of its nominal 113′′ × 113′′ field is occupied by the coronagraphs and the low resolution(More)
The imaging channel on the Mid-Infrared Instrument (MIRI) is equipped with four coronagraphs that provide high contrast imaging capabilities for studying faint point sources and extended emission that would otherwise be overwhelmed by a bright point-source in its vicinity. Such bright sources might include stars that are orbited by exoplanets and(More)
The Low Resolution Spectrometer of the MIRI, which forms part of the imager module, will provide R∼100 long-slit and slitless spectroscopy from 5 to 12 μm. The design is optimised for observations of compact sources, such as exoplanet host stars. We provide here an overview of the design of the LRS, and its performance as measured University of Oxford,(More)
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