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The Lobster-eye X-ray Telescope (LXY)

Presentation #105.40 in the session Missions and Instruments - Poster Session.

Published onMay 03, 2024
The Lobster-eye X-ray Telescope (LXY)

The Lobster-eye X-ray Telescope (LXT) is an approved NASA sounding rocket mission for the study of diffuse sources. LXT combines very large field of view with good angular and energy resolution, in a compact, light-weight design by coupling micropore (lobster-eye) optics with CCD detectors. LXT will use 4-telescopes configurable for a 7.5° x 7.5° or 15° x 15° field of view, with 8 arcmin FWHM, and energy range 0.1-10 keV with 100 eV FWHM at 1 keV. The LXT capabilities provide the unique opportunity to study very extended objects as it can observe the full extended object and its surroundings in a single pointing, thus removing any time-variable contamination from solar wind charge exchange. The approved plan includes two flights, one to study the properties of the Cygnus loop (which is well matched to the 7.5 deg field of view of LXT) and the other to perform shadow observations to study the properties of diffuse X-ray emission from the Milky Way. In addition, the maturation of the proposed instrument will provide the building block for future transient and multi-messenger X-ray missions, as the design is linearly scalable to larger fields of view and its compact design is ideal for searches of transient sources and/or rapid repointing in response to outside triggers.

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