{
  "abstract": "Context: Narrowband JWST/NIRCam selection isolates star-forming galaxies in well-defined redshift slices, while ALMA and archival far-IR/submm data reveal obscured growth. We combine these to measure Paschen-line SFRs, infer nebular extinction from EAZY Av, and probe FIR-to-submm emission via weighted-median stacking, to constrain galaxy growth at cosmic noon. Aims: We characterize stellar, nebular, and FIR properties of Paschen-selected galaxies in COSMOS, in two ensembles at z~1.50 (Pa-alpha) and z~2.65 (Pa-beta), quantifying short- vs long-timescale SF and dust attenuation, and constraining obscured SFR and gas masses. Methods: We select robust narrowband-excess samples from the JELS F466N/F470N mosaic (Pa-alpha: 77, Pa-beta: 31 sources), remove AGN via X-ray/radio matching, and assemble multiwavelength photometry (JWST, HST, Spitzer, Herschel, SCUBA-2, AzTEC, ALMA). Photo-z/stellar properties come from EAZY/STARDUST; line SFRs use recent Paschen calibrations, with nebular extinction from EAZY Av. Results: EAZY fits show stellar masses log(Mstar/Msun)~7.4-10.3 and modest SFRs (0.1-27 Msun/yr). Line SFRs are 0.1-22.0 and 0.7-47.9 Msun/yr for Pa-alpha/beta. Most sources show short-term bursts (line SFRs exceed SED SFRs), weakly decreasing with mass. Nebular attenuation correlates with mass and SFR. Stacking gives no >3sigma detections beyond MIRI. The weighted-median SED gives SFR_UV,med = 0.48+-0.11 and 3.92+-0.47 Msun/yr for Pa-alpha/beta. ALMA Band 4 gives the tightest constraints: median 3-sigma limits SFR_IR<53 (Pa-alpha) and <44 Msun/yr (Pa-beta); gas mass <10^11.2 (Pa-alpha) and <10^10.6 Msun (Pa-beta). Conclusions: Paschen-selected samples show widespread short-timescale star formation, but FIR/sub-mm data give only upper limits on obscured SFR/ISM mass. Deeper spectroscopy and ALMA continuum data are needed to constrain obscured SF and gas reservoirs.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: A&A, 714, A477 (2026)",
  "arxiv": "2609.10097",
  "author_total": 17,
  "authors": [
    {
      "name": "Malte Brinch"
    },
    {
      "name": "Edo Ibar"
    },
    {
      "name": "Luis Ossa-Fuentes"
    },
    {
      "name": "Corey Pirie"
    },
    {
      "name": "Philip Best"
    },
    {
      "name": "R. K. Cochrane"
    },
    {
      "name": "Kenneth Duncan"
    },
    {
      "name": "James Dunlop"
    },
    {
      "name": "Sophia Flury"
    },
    {
      "name": "Catherine Hale"
    },
    {
      "name": "Jorryt Matthee"
    },
    {
      "name": "Derek McLeod"
    },
    {
      "name": "Joshua Selfridge"
    },
    {
      "name": "David Sobral"
    },
    {
      "name": "Harry Stephenson"
    },
    {
      "name": "J. P. Stott"
    },
    {
      "name": "A. M. Swinbank"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cwwnh2hqcaeyy.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.10097",
  "fulltext_url": null,
  "id": "cwwnh2hqcaeyy",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.10097",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7212145249",
  "pdf_url": "https://arxiv.org/pdf/2609.10097",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cwwnh2hqcaeyy.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:12Z",
      "native_id": "2609.10097",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10097"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "The JWST Emission Line Survey (JELS): Multi-wavelength properties of Paschen line-emitters at Cosmic Noon",
  "title_text": "The JWST Emission Line Survey (JELS): Multi-wavelength properties of Paschen line-emitters at Cosmic Noon",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:17Z",
  "url": "https://research.draconitic.com/paper/cwwnh2hqcaeyy",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1051/0004-6361/202660290",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}