{
  "abstract": "The 3.5-meter Segmented-Mirror Robotic Space Telescope uses an image slicer for all spectroscopic observations. The planning baseline uses $R \\simeq 1000$ for the wide survey and retains selectable $R \\simeq 5000$ bands for precision line measurements. The central science case is a dense emission-line galaxy redshift survey for baryon acoustic oscillations and redshift-space distortions. Supernova and quasar programs exploit the stability, multiplexing, and repeatability of space operations. The supernova tier measures rest-frame U and near-ultraviolet magnitudes that separate optical twins at subgroup precision to $z \\simeq 0.9$--$1.1$ in standard visits and to $z \\simeq 1.3$--$1.5$ in ten-hour stacks. Every wide-survey tile receives three spectroscopic orientations, and a joint scene reconstruction uses their different overlap geometries to recover the spectra. The flagship survey covers 100--300 deg$^2$ and targets $10^6$--$3 \\times 10^6$ emission-line galaxies. A deep pencil-beam tier and a supernova time-domain tier complement the wide survey. The same observations provide a census of ultra-diffuse and low-surface-brightness galaxies, map intracluster light, and test cold, self-interacting, and fuzzy dark matter through dwarf-galaxy structure and low-mass halo abundance.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.02574",
  "author_total": 25,
  "authors": [
    {
      "name": "Juhan Kim"
    },
    {
      "name": "Yong-Woo Kang"
    },
    {
      "name": "Sang Hyun Lee"
    },
    {
      "name": "Jeong-Yeol Han"
    },
    {
      "name": "Sungwook E. Hong"
    },
    {
      "name": "Bongkon Moon"
    },
    {
      "name": "Donguk Song"
    },
    {
      "name": "Juhyung Kang"
    },
    {
      "name": "Myeong-Gu Park"
    },
    {
      "name": "Sang Chul Kim"
    },
    {
      "name": "Chung-Uk Lee"
    },
    {
      "name": "Sangmo Tony Sohn"
    },
    {
      "name": "Arman Shafieloo"
    },
    {
      "name": "David Parkinson"
    },
    {
      "name": "Hong Soo Park"
    },
    {
      "name": "Dohyeong Kim"
    },
    {
      "name": "Chan Park"
    },
    {
      "name": "Jungjoo Sohn"
    },
    {
      "name": "Young-Beom Jeon"
    },
    {
      "name": "Jong-Hak Woo"
    },
    {
      "name": "Hyung Mok Lee"
    },
    {
      "name": "Hong Bae Ann"
    },
    {
      "name": "Myungkook James Jee"
    },
    {
      "name": "Mansoo Choi"
    },
    {
      "name": "Changbom Park"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0d765683pqhkh.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.02574",
  "fulltext_url": null,
  "id": "0d765683pqhkh",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.02574",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.IM"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7207526761",
  "pdf_url": "https://arxiv.org/pdf/2609.02574",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0d765683pqhkh.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.02574",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.02574"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    }
  ],
  "title": "3.5-meter Segmented-Mirror Robotic Space Telescope Mission White Paper II. Key Scientific Mission: Wide-Field Cosmology and Galaxy Evolution",
  "title_text": "3.5-meter Segmented-Mirror Robotic Space Telescope Mission White Paper II. Key Scientific Mission: Wide-Field Cosmology and Galaxy Evolution",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/0d765683pqhkh",
  "venue": "arXiv",
  "versions": []
}