{"paper":{"title":"FAUST XXXI. Grain properties and variability of three sources in GSS 30","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Isella, A. L\\'opez-Sepulcre, A. Miotello, A. Rimola, B. Lefloch, B. Svoboda, C. Ceccarelli, C. Codella, C. J. Chandler, C. Vastel, D. Fedele, D. Johnstone, D. Segura-Cox, E. Bianchi, E. Caux, E. Herbst, F. Dulieu, F. Fontani, F. Menard, F. O. Alves, G. Moellenbrock, G. Sabatini, H. Baobab Liu, H. Nomura, I. Jim\\'enez-Serra, J. Pineda, L. Cacciapuoti, L. Evans, L. Loinard, L. Podio, L. Testi, L. T. Maud, M. Bouvier, M. De Simone, M. J. Maureira, N. Balucani, N. Cuello, N. Sakai, N. Watanabe, P. Caselli, Q. Yang, S. Charnley, S. Feng, S. Ohashi, S. Viti, S. Yamamoto, T. Hama, T. Hanawa, T. Hirota, T. Sakai, Y. Aikawa, Y. Oba, Y. Okoda, Y. Oya, Y. Shirley, Y. Watanabe, Y. Zhang, Z. E. Zhang","submitted_at":"2026-06-21T13:16:45Z","abstract_excerpt":"To advance our understanding of dust properties in class 0/I young stellar objects, it is crucial to resolve their structures at multiple wavelengths and investigate how grain growth and environmental effects shape their spectral properties. We present 0.5 arcsec resolution ALMA observations of the GSS 30 complex at 1.2-3.0 mm from the FAUST large programme, achieving a linear resolution of 69 au. We analyse the dust continuum emission and perform modelling to constrain dust properties and disk structures. For IRS3, the spectral index increases radially from 2.0 at the centre to 2.5 at the dis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.22489","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.22489/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}