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We utilise the {\\sc Drift-Phoenix} model grid where the local atmospheric structure is determined by the global parameters T$_{\\rm eff}$, $\\log(g)$ and [M/H].\n  Our results show that it is not unreasonable to expect H$_{\\alpha}$ or radio emission "},"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":"1509.02769","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2015-09-08T08:47:28Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR"],"title_canon_sha256":"ae7e1463ebf94a860abe7b31bc2e3e3d500a14e863e63f93801b4cda2e127d49","abstract_canon_sha256":"5a16eea2dfaec9a7317fd272708acd77d117b032e87fe03361543e77e40f77e0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:28:03.130010Z","signature_b64":"yILEOM+mvuGXxqmFySm70ML5yOiL9Jp83Qy1wpkv3lgg/XPg8ruNO/l9a1WLW8D0v1Br9tMCZj5KBV7KeDOZAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"81162778afd498115d70b0f4969913f2cc08100ea7c7ba8ef6021d6113319d58","last_reissued_at":"2026-05-18T01:28:03.129154Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:28:03.129154Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reference study to characterise plasma and magnetic properties of ultra-cool atmospheres","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A.M. 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