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| Format: | Preprint |
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2026
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| Online-Zugang: | https://arxiv.org/abs/2601.16761 |
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| author | Beutler, Florian Mueller, Eva-Maria Nadathur, Seshadri Wang, Yun Alonso, David Baker, Tessa Bose, Sownak Canning, Rebecca Cole, Shaun Cullen, Fergus Elbers, Willem Ferreira, Pedro Frenk, Carlos Gonzalez, Oscar Graur, Or Hadzhiyska, Boryana Hall, Alex Heymans, Catherine Koposov, Sergey Koyama, Kazuya Lahav, Ofer Li, Baojiu Meiksin, Avery Noller, Johannes Peacock, John Pourtsidou, Alkistis Savini, Giorgio Taylor, Andy Tojeiro, Rita Wands, David Robberto, Massimo Wirth, Gregory Dickinson, Mark Greene, Thomas Kruk, Jeffrey Percival, Will Faisst, Andreas Hillenbrand, Lynne Kartaltepe, Jeyhan Padmanabhan, Nikhil Samushia, Lado Armus, Lee Benson, Andrew Bolzonella, Micol Brieden, Samuel Brinchmann, Jarle Content, Robert Daddi, Emanuele Finner, Kyle Hearin, Andrew Howlett, Cullan Lawrence, Jon Mosby, Gregory Ninkov, Zoran Osato, Ken Papovich, Casey Piotrowski, Jack Pozzetti, Lucia Raccanelli, Alvise Rhodes, Jason Saito, Shun Seo, Hee-Jong Slepian, Zachary Smee, Steve |
| author_facet | Beutler, Florian Mueller, Eva-Maria Nadathur, Seshadri Wang, Yun Alonso, David Baker, Tessa Bose, Sownak Canning, Rebecca Cole, Shaun Cullen, Fergus Elbers, Willem Ferreira, Pedro Frenk, Carlos Gonzalez, Oscar Graur, Or Hadzhiyska, Boryana Hall, Alex Heymans, Catherine Koposov, Sergey Koyama, Kazuya Lahav, Ofer Li, Baojiu Meiksin, Avery Noller, Johannes Peacock, John Pourtsidou, Alkistis Savini, Giorgio Taylor, Andy Tojeiro, Rita Wands, David Robberto, Massimo Wirth, Gregory Dickinson, Mark Greene, Thomas Kruk, Jeffrey Percival, Will Faisst, Andreas Hillenbrand, Lynne Kartaltepe, Jeyhan Padmanabhan, Nikhil Samushia, Lado Armus, Lee Benson, Andrew Bolzonella, Micol Brieden, Samuel Brinchmann, Jarle Content, Robert Daddi, Emanuele Finner, Kyle Hearin, Andrew Howlett, Cullan Lawrence, Jon Mosby, Gregory Ninkov, Zoran Osato, Ken Papovich, Casey Piotrowski, Jack Pozzetti, Lucia Raccanelli, Alvise Rhodes, Jason Saito, Shun Seo, Hee-Jong Slepian, Zachary Smee, Steve |
| contents | Understanding the Universe's origins and evolution remains one of the most fundamental challenges in modern cosmology. This white paper explores three key science priorities in this field: unravelling the physics of cosmic inflation, investigating the accelerating expansion of the Universe, and precisely measuring the sum of the neutrino masses. Achieving these goals requires a dedicated survey to map the large-scale structure at high redshift in unprecedented detail. We describe how this can be achieved through a mission concept called SIRMOS, providing a high-throughput, highly multiplexed spectroscopic capability to obtain accurate redshifts for over 100 million galaxies over a wide sky area. Such a survey would leverage the deepest existing wide-area photometric catalogues for targeting, with spectra offering continuous 1.25-2.5~$μ$m wavelength coverage at moderate resolution, allowing precise redshift measurements in the $1<z<4$ range with minimal bias. We outline the scientific opportunities this presents. Recent years have seen significant advances in instrumentation, including digital micromirror devices, complex telescope mirrors, large detector arrays, and data processing pipelines. While these technologies have been demonstrated in terrestrial applications, such a survey is a unique opportunity to apply these proven capabilities in space to address fundamental questions in cosmology. Participation in such a mission will simultaneously deliver a compelling science case, help align UK Space Agency and STFC strategies, demonstrate the UK's growing capability in end-to-end space missions, and strengthen the national space economy through high-value industrial participation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_16761 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper Beutler, Florian Mueller, Eva-Maria Nadathur, Seshadri Wang, Yun Alonso, David Baker, Tessa Bose, Sownak Canning, Rebecca Cole, Shaun Cullen, Fergus Elbers, Willem Ferreira, Pedro Frenk, Carlos Gonzalez, Oscar Graur, Or Hadzhiyska, Boryana Hall, Alex Heymans, Catherine Koposov, Sergey Koyama, Kazuya Lahav, Ofer Li, Baojiu Meiksin, Avery Noller, Johannes Peacock, John Pourtsidou, Alkistis Savini, Giorgio Taylor, Andy Tojeiro, Rita Wands, David Robberto, Massimo Wirth, Gregory Dickinson, Mark Greene, Thomas Kruk, Jeffrey Percival, Will Faisst, Andreas Hillenbrand, Lynne Kartaltepe, Jeyhan Padmanabhan, Nikhil Samushia, Lado Armus, Lee Benson, Andrew Bolzonella, Micol Brieden, Samuel Brinchmann, Jarle Content, Robert Daddi, Emanuele Finner, Kyle Hearin, Andrew Howlett, Cullan Lawrence, Jon Mosby, Gregory Ninkov, Zoran Osato, Ken Papovich, Casey Piotrowski, Jack Pozzetti, Lucia Raccanelli, Alvise Rhodes, Jason Saito, Shun Seo, Hee-Jong Slepian, Zachary Smee, Steve Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Understanding the Universe's origins and evolution remains one of the most fundamental challenges in modern cosmology. This white paper explores three key science priorities in this field: unravelling the physics of cosmic inflation, investigating the accelerating expansion of the Universe, and precisely measuring the sum of the neutrino masses. Achieving these goals requires a dedicated survey to map the large-scale structure at high redshift in unprecedented detail. We describe how this can be achieved through a mission concept called SIRMOS, providing a high-throughput, highly multiplexed spectroscopic capability to obtain accurate redshifts for over 100 million galaxies over a wide sky area. Such a survey would leverage the deepest existing wide-area photometric catalogues for targeting, with spectra offering continuous 1.25-2.5~$μ$m wavelength coverage at moderate resolution, allowing precise redshift measurements in the $1<z<4$ range with minimal bias. We outline the scientific opportunities this presents. Recent years have seen significant advances in instrumentation, including digital micromirror devices, complex telescope mirrors, large detector arrays, and data processing pipelines. While these technologies have been demonstrated in terrestrial applications, such a survey is a unique opportunity to apply these proven capabilities in space to address fundamental questions in cosmology. Participation in such a mission will simultaneously deliver a compelling science case, help align UK Space Agency and STFC strategies, demonstrate the UK's growing capability in end-to-end space missions, and strengthen the national space economy through high-value industrial participation. |
| title | Illuminating the Physics of Cosmic Origin and Evolution: A UK Space Frontiers 2035 White Paper |
| topic | Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2601.16761 |