Article Dans Une Revue Journal of Astronomical Telescopes Instruments and Systems Année : 2025

PRIMA: PRIMAger, a far-infrared hyperspectral and polarimetric instrument

Résumé

The PRobe far-Infrared Mission for Astrophysics (PRIMA) is an infrared observatory for the next decade, currently in Phase A, with a 1.8 m telescope actively cooled to 4.5 K. On board, an infrared camera, PRIMAger, equipped with ultra-sensitive kinetic inductance detector (KID) arrays, will provide observers with coverage of midinfrared to far-infrared wavelengths from 24 to 264 µm. PRIMAger will offer two imaging modes: the Hyperspectral mode will cover the 24-84 µm wavelength range with a spectral resolution R≥8, while the Polarimetric mode will provide polarimetric imaging in 4 broad bands, from 80 to 264 µm. These observational capabilities have been tailored to answer fundamental astrophysical questions such as black hole and star-formation co-evolution in galaxies, the evolution of small dust grains over a wide range of redshifts, and the effects of interstellar magnetic fields in various environments, as well as to open a vast discovery space with versatile photometric and polarimetric capabilities.

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insu-05326349 , version 1 (22-10-2025)

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Laure Ciesla, Charles Darren Dowell, Marc Sauvage, Denis Burgarella, Jochem Baselmans, et al.. PRIMA: PRIMAger, a far-infrared hyperspectral and polarimetric instrument. Journal of Astronomical Telescopes Instruments and Systems, 2025, 11 (03), ⟨10.1117/1.JATIS.11.3.031625⟩. ⟨insu-05326349⟩
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