{
  "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 ∼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": [
    "Universidad de Chile Departamento de Astronomía, , Camino El Observatorio 1515, Las Condes, Santiago ,",
    "Mullard Space Science Laboratory, University College London , Holmbury St Mary, Dorking, Surrey RH5 6NT ,",
    "Universidad Técnica Federico Santa María Departamento de Física, , Vicuña Mackena 3939, San Joaquín, Santiago de Chile ,",
    "Universidad Nacional Autónoma de México, Instituto de Astronomía , A.P. 70-264, Ciudad de México 04510 ,",
    "European Southern Observatory , Karl-Schwarzchild-Str. 2, 85748 Garching bei München ,",
    "Max Planck Institute for Extraterrestial Physics , Giessenbachstrasse 1, D-85748 Garching ,",
    "Max-Planck-Institut fur Astronomie (MPIA) , Konigstuhl 17, 69117 Heidelberg ,",
    "School of Physics, Trinity College Dublin, the University of Dublin , College Green, Dublin 2 ,",
    "Joint ALMA Observatory , Alonso de Córdova 3107, Vitacura, Santiago 763-0355 ,",
    "Instituto de Estudios Astrofísicos, Universidad Diego Portales , Av. Ejercito 441, Santiago ,",
    "Millennium Nucleus on Young Exoplanets and their Moons (YEMS) ,",
    "Lunar and Planetary Laboratory, the University of Arizona , Tucson, AZ 85721 ,",
    "Universidad de Santiago de Chile Departamento de Física, , Avenida Victor Jara 3659, Santiago ,",
    "Millenium Nucleus of Young Exoplanets and their Moons (YEMS) ,",
    "Center for Interdisciplinary Research in Astrophysics and Space Exploration (CIRAS) , Universidad de Santiago ,",
    "Leiden Observatory, Leiden University , Einsteinweg 55, 2333 CC Leiden ,",
    "Anton Pannekoek Institute for Astronomy, University of Amsterdam ,",
    "European Southern Observatory , Alonso de Córdova 3107, Vitacura, Santiago ,",
    "University of Wisconsin-Madison Department of Astronomy, , 475 N Charter St, Madison, WI 53706 ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 16,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Camila Pulgarés"
    },
    {
      "affs": [
        0
      ],
      "name": "Laura M Pérez"
    },
    {
      "affs": [
        2
      ],
      "name": "Carolina Agurto-Gangas"
    },
    {
      "affs": [
        1
      ],
      "name": "Lilian Luo",
      "orcid": "0009-0003-6916-2470"
    },
    {
      "affs": [
        1
      ],
      "name": "Paola Pinilla",
      "orcid": "0000-0001-8764-1780"
    },
    {
      "affs": [
        1,
        3
      ],
      "name": "Anibal Sierra"
    },
    {
      "affs": [
        4
      ],
      "name": "Miguel Vioque"
    },
    {
      "affs": [
        5,
        6
      ],
      "name": "Nicolás Kurtovic"
    },
    {
      "affs": [
        7
      ],
      "name": "Rossella Anania",
      "orcid": "0009-0004-8091-5055"
    },
    {
      "affs": [
        8
      ],
      "name": "John Carpenter"
    },
    {
      "affs": [
        9,
        10
      ],
      "name": "Lucas Cieza"
    },
    {
      "affs": [
        11
      ],
      "name": "Dingshan Deng",
      "orcid": "0000-0003-0777-7392"
    },
    {
      "affs": [
        12,
        13,
        14
      ],
      "name": "Camilo González-Ruilova"
    },
    {
      "affs": [
        15,
        16
      ],
      "name": "Michiel R Hogerheijde"
    },
    {
      "affs": [
        8,
        12,
        13,
        14,
        17
      ],
      "name": "James Miley"
    },
    {
      "affs": [
        18
      ],
      "name": "Ke Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/axnjdz3x3y6ag.bib",
  "cited_by": 0,
  "doi": "10.1093/mnras/stag2043",
  "fulltext_url": null,
  "id": "axnjdz3x3y6ag",
  "issns": [
    "0035-8711",
    "1365-2966"
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  "landing_url": "https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag2043/9003263",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
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      "openalex",
      "3103|Astrophysics and Star Formation Studies"
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  "openalex": "W7223696722",
  "pdf_url": "https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stag2043/72541921/stag2043.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": "Oxford University Press (OUP)",
  "ris": "https://research.draconitic.com/paper/axnjdz3x3y6ag.ris",
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    {
      "first_seen": "2026-10-30T12:18:17Z",
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  "subjects": [
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      "field": "astronomy",
      "origin": "openalex:3103|Astrophysics and Star Formation Studies",
      "subfield": "stellar"
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  ],
  "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": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:17Z",
  "url": "https://research.draconitic.com/paper/axnjdz3x3y6ag",
  "venue": "Monthly Notices of the Royal Astronomical Society",
  "versions": [
    {
      "doi": "10.48550/arxiv.2610.32906",
      "pid": "96mcfnp61wgh2",
      "relation": "preprint",
      "title": "The ALMA Survey of Gas Evolution of PROtoplanetary disks (AGE-PRO): Evolution of dust properties from multi-wavelength observations",
      "venue": "arXiv"
    }
  ]
}