Glenn, Jason and Bradford, Charles M. and Rosolowsky, Erik and Amini, Rashied and Alatalo, Katherine and Armus, Lee and Benson, Andrew J. and Chang, Tzu-Ching and Darling, Jeremy and Day, Peter K. and Domber, Jeanette and Farrah, Duncan and Hensley, Brandon and Lipscy, Sarah and Moore, Bradley and Oliver, Seb and Perido, Joanna and Redding, David and Rodgers, Michael and Shirley, Raphael and Smith, Howard A. and Steeves, John B. and Tucker, Carole and Zmuidzinas, Jonas (2021) Galaxy Evolution Probe. Journal of Astronomical Telescopes, Instruments, and Systems, 7 (3). Art. No. 034004. ISSN 2329-4124. doi:10.1117/1.jatis.7.3.034004. https://resolver.caltech.edu/CaltechAUTHORS:20210930-212941789
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Abstract
The Galaxy Evolution Probe (GEP) is a concept for a mid- and far-infrared space observatory to measure key properties of large samples of galaxies with large and unbiased surveys. GEP will attempt to achieve zodiacal light and Galactic dust emission photon background-limited observations by utilizing a 6-K, 2.0-m primary mirror and sensitive arrays of kinetic inductance detectors (KIDs). It will have two instrument modules: a 10 to 400 μm hyperspectral imager with spectral resolution R = λ / Δλ ≥ 8 (GEP-I) and a 24 to 193 μm, R = 200 grating spectrometer (GEP-S). GEP-I surveys will identify star-forming galaxies via their thermal dust emission and simultaneously measure redshifts using polycyclic aromatic hydrocarbon emission lines. Galaxy luminosities derived from star formation and nuclear supermassive black hole accretion will be measured for each source, enabling the cosmic star formation history to be measured to much greater precision than previously possible. Using optically thin far-infrared fine-structure lines, surveys with GEP-S will measure the growth of metallicity in the hearts of galaxies over cosmic time and extraplanar gas will be mapped in spiral galaxies in the local universe to investigate feedback processes. The science case and mission architecture designed to meet the science requirements is described, and the KID and readout electronics state of the art and needed developments are described. This paper supersedes the GEP concept study report cited in it by providing new content, including: a summary of recent mid-infrared KID development, a discussion of microlens array fabrication for mid-infrared KIDs, and additional context for galaxy surveys. The reader interested in more technical details may want to consult the concept study report.
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| Additional Information: | © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. Paper 20152 received Oct. 9, 2020; accepted for publication Jul. 27, 2021; published online Aug. 26, 2021. This work was supported, in part, by a NASA Astrophysics Probe Concept Study grant to Jason Glenn (NASA Award Number NNX17AJ89G). This research was funded in part by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the NASA. Jason Glenn thanks JPL and Ball Aerospace for their strong support of the study effort. The GEP team would like to thank many contributors whose important work helped the successful completion of this study but whose roles traditionally do not qualify for inclusion in authorship lists of scientific publications: engineering aides, documentarians, administrators, administrative aides, and reviewers. The authors have no relevant financial interests in the manuscript and no other potential conflicts of interest to disclose. | ||||||||||||||||||||||||||
| Group: | Astronomy Department, Infrared Processing and Analysis Center (IPAC) | ||||||||||||||||||||||||||
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| Subject Keywords: | galaxy evolution; interstellar medium; mid infrared; far-infrared; kinetic inductance detectors; probe class | ||||||||||||||||||||||||||
| Issue or Number: | 3 | ||||||||||||||||||||||||||
| DOI: | 10.1117/1.jatis.7.3.034004 | ||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20210930-212941789 | ||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20210930-212941789 | ||||||||||||||||||||||||||
| Official Citation: | Jason Glenn, Charles M. Bradford, Erik Rosolowsky, Rashied Amini, Katherine Alatalo, Lee Armus, Andrew J. Benson, Tzu-Ching Chang, Jeremy Darling, Peter K. Day, Jeanette L. Domber, Duncan Farrah, Brandon Hensley, Sarah J. Lipscy, Bradley D. Moore, Sebastian Oliver, Joanna Perido, David C. Redding, John M. Rodgers, Raphael Shirley, Howard A. Smith, John B. Steeves, Carole E. Tucker, and Jonas Zmuidzinas "Galaxy Evolution Probe," Journal of Astronomical Telescopes, Instruments, and Systems 7(3), 034004 (26 August 2021). https://doi.org/10.1117/1.JATIS.7.3.034004 | ||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||
| ID Code: | 111138 | ||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||||||||
| Deposited On: | 04 Oct 2021 20:04 | ||||||||||||||||||||||||||
| Last Modified: | 04 Oct 2021 20:19 |
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