{
  "abstract": "Understanding the evolution of solids in protoplanetary discs is important to comprehend the formation of giant planets cores and terrestrial planets. The ALMA Large Program AGE-PRO studied key disc properties in a survey of 30 protoplanetary discs across three evolutionary stages: the embedded phase (0.5-1 Myr), the middle-age phase (1-3 Myr), and the end of the disc lifetime (2-6 Myr). Preliminary dust properties were estimated using 1.3 mm observations, but a multi-wavelength analysis provides a better constraint of important properties such as the dust disc mass, the dust temperature, and the maximum grain size. We present new ALMA 3.1 mm and 1.5 mm (Bands 3 and 5) continuum observations of the complete survey of 30 AGE-PRO discs. We fitted the observed visibilities and derived radial brightness profiles, spatially resolving 20 discs from the AGE-PRO sample at the two studied wavelengths. A multi-wavelength modelling was performed including also the radial profiles from the 1.3 mm observations. Our results replicate trends obtained from the single wavelength analysis: the dust disc size seems to be constant over age and the dust disc mass decreases with time, with a factor $\\sim$10-40 uncertainty from opacity assumptions. This result implies much lower gas-to-dust mass ratios for the discs in our sample than previously reported. In addition, the derived spectral indices are consistent with optically thick emission in a large fraction of the AGE-PRO discs, in particular for the Ophiuchus and Lupus discs.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.32906",
  "author_total": 16,
  "authors": [
    {
      "name": "Camila Pulgarés"
    },
    {
      "name": "Laura M. Pérez"
    },
    {
      "name": "Carolina Agurto-Gangas"
    },
    {
      "name": "Lilian Luo"
    },
    {
      "name": "Paola Pinilla"
    },
    {
      "name": "Anibal Sierra"
    },
    {
      "name": "Miguel Vioque"
    },
    {
      "name": "Nicolás Kurtovic"
    },
    {
      "name": "Rossella Anania"
    },
    {
      "name": "John Carpenter"
    },
    {
      "name": "Lucas Cieza"
    },
    {
      "name": "Dingshan Deng"
    },
    {
      "name": "Camilo González-Ruilova"
    },
    {
      "name": "Michiel R. Hogerheijde"
    },
    {
      "name": "James Miley"
    },
    {
      "name": "Ke Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/96mcfnp61wgh2.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.32906",
  "fulltext_url": null,
  "id": "96mcfnp61wgh2",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.32906",
  "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.EP"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.32906",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/96mcfnp61wgh2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:35Z",
      "native_id": "2610.32906",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.32906"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.EP",
      "subfield": "planetary"
    }
  ],
  "title": "The ALMA Survey of Gas Evolution of PROtoplanetary disks (AGE-PRO): Evolution of dust properties from multi-wavelength observations",
  "title_text": "The ALMA Survey of Gas Evolution of PROtoplanetary disks (AGE-PRO): Evolution of dust properties from multi-wavelength observations",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:35Z",
  "url": "https://research.draconitic.com/paper/96mcfnp61wgh2",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag2043",
      "pid": "axnjdz3x3y6ag",
      "relation": "published-as",
      "title": "The ALMA Survey of Gas Evolution of PROtoplanetary disks (AGE-PRO): Evolution of dust properties from multi-wavelength observations",
      "venue": "Monthly Notices of the Royal Astronomical Society"
    }
  ]
}