The SIRMOS mission concept: a space-based near-IR spectroscopic survey of 100 million galaxies in the Euclid Wide Survey footprint
Abstract
SIRMOS is a mission concept for a future NASA Astrophysics Explorer opportunity that aims to revolutionize our understanding of the universe by mapping the large-scale structure of galaxies in unprecedented breadth and detail to explore cosmic origins and evolution. Specifically, the primary science goals of SIRMOS are to discover how cosmic inflation seeded large-scale structure, reveal the nature of the accelerating expansion of the universe, and measure the sum of neutrino masses to exceptionally high precision. Its secondary science goals include determining how environment shapes galaxy evolution at cosmic noon and beyond, and probing the Milky Way's dust-enshrouded regions, reaching the far side of our Galaxy. To accomplish its transformative science goals, SIRMOS executes a 3-year cosmology survey over the Euclid footprint of ~14,000 deg2, obtaining slit spectra for ~100 million galaxies at 1<z<4. SIRMOS is the first space mission designed specifically to leverage Euclid's wide near-infrared (IR) imaging survey for target selection and employs a digital micro-mirror device (DMD) to acquire up to 4,000 simultaneous spectra over a wide 0.9 deg2 field of view. The instrument's excellent spectral resolution of R=1300 and continuous wavelength coverage from 1.25--2.5 μm capture the redshifts of distant galaxies with no gaps, reducing systematic biases to achieve ground-breaking science.
Versions
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BibTeX
@misc{wirth2026sirmos,
title = {{The SIRMOS mission concept: a space-based near-IR spectroscopic survey of 100 million galaxies in the Euclid Wide Survey footprint}},
author = {Gregory D. Wirth and Yun Wang and Massimo Robberto and Mark Dickinson and Thomas Greene and Jeffrey Kruk and Will Percival and Joshua E. Schlieder and Andreas Faisst and Lynne Hillenbrand and Jeyhan Kartaltepe and Nikhil Padmanabhan and Lado Samushia and Robert Content and Micol Bolzonella and Samuel Brieden and Lee Armus and Benedict Bahr-Kalus and Andrew Benson and Florian Beutler and Jarle Brinchmann and Hansford Cutlip and Emanuele Daddi and Kyle Finner and Jason Forsyth and David Glaister and Carlita Gorham and Andrew Hearin and Cullan Howlett and Jon Lawrence and Gregory Mosby and Eva-Maria Mueller and Seshadri Nadathur and Kalina V. Nedkova and Zoran Ninkov and Ken Osato and Casey Papovich and Jack Piotrowski and Lucia Pozzetti and Alvise Raccanelli and Jason Rhodes and Shun Saito and Rebecca Schindhelm and Hee-Jong Seo and Zachary Slepian and Steve Smee and Francesco Spezzati and Lee Spitler and Scott Streetman},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.35945},
eprint = {2610.35945},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.35945},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - The SIRMOS mission concept: a space-based near-IR spectroscopic survey of 100 million galaxies in the Euclid Wide Survey footprint
AU - Gregory D. Wirth
AU - Yun Wang
AU - Massimo Robberto
AU - Mark Dickinson
AU - Thomas Greene
AU - Jeffrey Kruk
AU - Will Percival
AU - Joshua E. Schlieder
AU - Andreas Faisst
AU - Lynne Hillenbrand
AU - Jeyhan Kartaltepe
AU - Nikhil Padmanabhan
AU - Lado Samushia
AU - Robert Content
AU - Micol Bolzonella
AU - Samuel Brieden
AU - Lee Armus
AU - Benedict Bahr-Kalus
AU - Andrew Benson
AU - Florian Beutler
AU - Jarle Brinchmann
AU - Hansford Cutlip
AU - Emanuele Daddi
AU - Kyle Finner
AU - Jason Forsyth
AU - David Glaister
AU - Carlita Gorham
AU - Andrew Hearin
AU - Cullan Howlett
AU - Jon Lawrence
AU - Gregory Mosby
AU - Eva-Maria Mueller
AU - Seshadri Nadathur
AU - Kalina V. Nedkova
AU - Zoran Ninkov
AU - Ken Osato
AU - Casey Papovich
AU - Jack Piotrowski
AU - Lucia Pozzetti
AU - Alvise Raccanelli
AU - Jason Rhodes
AU - Shun Saito
AU - Rebecca Schindhelm
AU - Hee-Jong Seo
AU - Zachary Slepian
AU - Steve Smee
AU - Francesco Spezzati
AU - Lee Spitler
AU - Scott Streetman
PY - 2026
DA - 2026/10/23
PB - arXiv
DO - 10.48550/arxiv.2610.35945
UR - https://arxiv.org/abs/2610.35945
AB - SIRMOS is a mission concept for a future NASA Astrophysics Explorer opportunity that aims to revolutionize our understanding of the universe by mapping the large-scale structure of galaxies in unprecedented breadth and detail to explore cosmic origins and evolution. Specifically, the primary science goals of SIRMOS are to discover how cosmic inflation seeded large-scale structure, reveal the nature of the accelerating expansion of the universe, and measure the sum of neutrino masses to exceptionally high precision. Its secondary science goals include determining how environment shapes galaxy evolution at cosmic noon and beyond, and probing the Milky Way's dust-enshrouded regions, reaching the far side of our Galaxy. To accomplish its transformative science goals, SIRMOS executes a 3-year cosmology survey over the Euclid footprint of ~14,000 deg^2, obtaining slit spectra for ~100 million galaxies at 1<z<4. SIRMOS is the first space mission designed specifically to leverage Euclid's wide near-infrared (IR) imaging survey for target selection and employs a digital micro-mirror device (DMD) to acquire up to 4,000 simultaneous spectra over a wide 0.9 deg^2 field of view. The instrument's excellent spectral resolution of R=1300 and continuous wavelength coverage from 1.25--2.5 μm capture the redshifts of distant galaxies with no gaps, reducing systematic biases to achieve ground-breaking science.
ER -