AtLAST -- A five fold increase in the number of identified Strongly Lensed Galaxies in the sub-millimetre and its consequences
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912767342018560 |
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| author | González-Nuevo, Joaquín Bonavera, Laura Cano, Juan Alberto Crespo, David Fernández-Fernández, Rebeca Franco, Valentina Cueli, Marcos M. Casas, José Manuel Bakx, Tom J. L. C. |
| author_facet | González-Nuevo, Joaquín Bonavera, Laura Cano, Juan Alberto Crespo, David Fernández-Fernández, Rebeca Franco, Valentina Cueli, Marcos M. Casas, José Manuel Bakx, Tom J. L. C. |
| contents | Strong gravitational lensing is a powerful probe of cosmology, dark matter (DM), and high-redshift galaxy evolution, but current samples of strongly lensed galaxies (SLGs) remain far too small to exploit its full potential. $\textit{Herschel}$'s submillimeter (submm) surveys demonstrated that submm selection provides the most efficient and least biased route to identifying high-redshift SLGs, yet produced only a few hundred systems over limited, heterogeneous fields. Achieving the thousands of SLGs required for precision cosmology and detailed studies of distant dusty star-forming galaxies demands a new, wide-area, homogeneous sub-mm survey. A facility like AtLAST, capable of extending $\textit{Herschel}$-like methodologies to much larger areas, is uniquely positioned to deliver the order-of-magnitude increase in SLG numbers needed for transformative progress. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2512_13896 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | AtLAST -- A five fold increase in the number of identified Strongly Lensed Galaxies in the sub-millimetre and its consequences González-Nuevo, Joaquín Bonavera, Laura Cano, Juan Alberto Crespo, David Fernández-Fernández, Rebeca Franco, Valentina Cueli, Marcos M. Casas, José Manuel Bakx, Tom J. L. C. Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Strong gravitational lensing is a powerful probe of cosmology, dark matter (DM), and high-redshift galaxy evolution, but current samples of strongly lensed galaxies (SLGs) remain far too small to exploit its full potential. $\textit{Herschel}$'s submillimeter (submm) surveys demonstrated that submm selection provides the most efficient and least biased route to identifying high-redshift SLGs, yet produced only a few hundred systems over limited, heterogeneous fields. Achieving the thousands of SLGs required for precision cosmology and detailed studies of distant dusty star-forming galaxies demands a new, wide-area, homogeneous sub-mm survey. A facility like AtLAST, capable of extending $\textit{Herschel}$-like methodologies to much larger areas, is uniquely positioned to deliver the order-of-magnitude increase in SLG numbers needed for transformative progress. |
| title | AtLAST -- A five fold increase in the number of identified Strongly Lensed Galaxies in the sub-millimetre and its consequences |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2512.13896 |