PRIMAger General Observer programs: a π-sr Infrared Survey and other General Observer wide-field programs
Year: 2025
Type: article
Abstract: The PRobe far-Infrared Mission for Astrophysics (PRIMA) is a cryogenically-cooled, far-infrared (far-IR) observatory expected to begin serving the astronomical community by early 2030. The mission features two advanced instruments: PRIMAger and FIRESS. PRIMAger will operate across the mid- to far-IR spectrum, covering wavelengths from ∼25 to 260 μm. It will offer hyperspectral imaging in medium resolution bands (R∼8, using a linear variable filter) from 25 to 80 μm, and broad band (R∼4) photometric and polarimetric imaging in four bands spanning 80 to 260 μm. The capabilities of PRIMAger will enable a broad range of unique scientific programs, accessible through General Observer projects. In this paper, we present and define a PRIMAger survey over 25% of the sky, called π-IR survey. This survey would exploit PRIMAger’s hyperspectral and polarimetric modes to collect data on about 8×106 galaxies to z∼4. The R=8 spectral resolution of the PRIMAger Hyperspectral Imaging filters will enable users to study the emission of polycyclic aromatic hydrocarbons. A large sample of galaxies will be observed with the polarimetric bands of PRIMAger, allowing unique statistical information for galaxies to be harvested for the first time.
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4414427715
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