Galaxy Evolution Probe

The Galaxy Evolution Probe (GEP) is a concept for mid- and far-infrared space observatory to measure key properties of large samples galaxies with unbiased surveys. GEP will attempt achieve zodiacal light Galactic dust emission photon background-limited observations by utilizing 6-K, 2.0-m primary mirror sensitive arrays kinetic inductance detectors (KIDs). It have two instrument modules: 10 400 ?m hyperspectral imager spectral resolution R = ? / ?? ? 8 (GEP-I) 24 193 ?m, 200 grating spectrometer (GEP-S). GEP-I surveys identify star-forming via their thermal simultaneously redshifts using polycyclic aromatic hydrocarbon lines. luminosities derived from star formation nuclear supermassive black hole accretion be measured each source, enabling the cosmic history much greater precision than previously possible. Using optically thin fine-structure lines, GEP-S growth metallicity in hearts over time extraplanar gas mapped spiral local universe investigate feedback processes. science case mission architecture designed meet requirements described, KID readout electronics state art needed developments are described. This paper supersedes study report cited it providing new content, including: summary recent mid-infrared development, discussion microlens array fabrication KIDs, additional context galaxy reader interested more technical details may want consult report.