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GREX-PLUS Science Book

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arxiv 2304.08104 v2 pith:NPU75TAP submitted 2023-04-17 astro-ph.CO astro-ph.EPastro-ph.GAastro-ph.IMastro-ph.SR

classification astro-ph.COastro-ph.EPastro-ph.GAastro-ph.IMastro-ph.SR
keywords grex-plusgalaxyplanetaryresolutionspectrometerwillaimsatmosphere
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abstract

GREX-PLUS (Galaxy Reionization EXplorer and PLanetary Universe Spectrometer) is a mission candidate for a JAXA's strategic L-class mission to be launched in the 2030s. Its primary sciences are two-fold: galaxy formation and evolution and planetary system formation and evolution. The GREX-PLUS spacecraft will carry a 1.2 m primary mirror aperture telescope cooled down to 50 K. The two science instruments will be onboard: a wide-field camera in the 2-8 $\mu$m wavelength band and a high resolution spectrometer with a wavelength resolution of 30,000 in the 10-18 $\mu$m band. The GREX-PLUS wide-field camera aims to detect the first generation of galaxies at redshift $z>15$. The GREX-PLUS high resolution spectrometer aims to identify the location of the water ``snow line'' in proto-planetary disks. Both instruments will provide unique data sets for a broad range of scientific topics including galaxy mass assembly, origin of supermassive blackholes, infrared background radiation, molecular spectroscopy in the interstellar medium, transit spectroscopy for exoplanet atmosphere, planetary atmosphere in the Solar system, and so on.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Project Hephaistos -- IV. James Webb Space Telescope Observations of Two Dyson Sphere Candidates

    astro-ph.GA 2026-07 accept novelty 6.5 of 10

    JWST/MIRI data attribute the mid-IR excess of Hephaistos candidates D and E to background galaxies at z≈0.9 (Hot-DOG-like) and z≈0.4 (dusty starburst), not to Dyson spheres or debris disks.

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