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Previous ALMA observations revealed a CO belt at $\\sim$85 au with a distinct clump, interpreted as a location of enhanced gas production. Photodissociation converts CO into C and O within $\\sim$50 years. We resolve CI emission at 492 GHz using ALMA and study its spatial distribution. CI shows the same clump as seen for CO. This is surprising, as C is expected to quickly spread in azimuth. We derive a low C mass (between $5\\times10^{-4}$ and $3.1\\times10^{-3}$ M$_\\oplus$), indicating that gas production started only recently (with"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1804.06479","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2018-04-17T21:58:11Z","cross_cats_sorted":[],"title_canon_sha256":"e2f3ac4557fa4353981cc12aeec050fce6d6a6e07f19e8f69cf4e8f47585e5a6","abstract_canon_sha256":"6a26d57315c2d487d0f3d7262d1370c0d3fd5f38a3d5ae5ad7e3eeee6e09480e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:37.866766Z","signature_b64":"TW7O9nQwP72eCvXMOaSkVxuA91Bu+6TppLDmLKqKjmyztEqpCRDuAKIF3fNIe27hDtR6FQ6sWdHnDefKzmZIDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca0afc1efff2ca7e4561fddefe51ffab7b0d93447b793237d44e521a02b05f56","last_reissued_at":"2026-05-18T00:10:37.865509Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:37.865509Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"ALMA resolves CI emission from the $\\beta$ Pictoris debris disk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Aki Roberge, Alexis Brandeker, Bernard L. de Vries, Christine Chen, Eric Pantin, Gianni Cataldi, G\\\"oran Olofsson, Inga Kamp, Ren\\'e Liseau, William Dent, Yanqin Wu","submitted_at":"2018-04-17T21:58:11Z","abstract_excerpt":"The debris disk around $\\beta$~Pictoris is known to contain gas. Previous ALMA observations revealed a CO belt at $\\sim$85 au with a distinct clump, interpreted as a location of enhanced gas production. Photodissociation converts CO into C and O within $\\sim$50 years. We resolve CI emission at 492 GHz using ALMA and study its spatial distribution. CI shows the same clump as seen for CO. This is surprising, as C is expected to quickly spread in azimuth. 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