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We aim to investigate the ionisation conditions and distances of Galactic high-velocity clouds (HVCs) in the Galactic halo and beyond in the direction of the Local Group (LG) barycentre and anti-barycentre, by studying spectral data of 29 extragalactic background sources obtained with Cosmic Origins Spectropgraph (COS) installed on the Hubble Space Telescope (HST). Methods. We model column-densities of low, intermediate, and high ions, such as Si II, C II, Si III, Si IV, and C IV and use this to construct a set of Cloudy ionisation models. Results. In total, we found 69 high-velocity abs"},"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":"1904.11817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-04-26T12:59:10Z","cross_cats_sorted":[],"title_canon_sha256":"00023c459454d6cf22ccb433a773645f685a15113307ba90d23c2b75d5ea6f7c","abstract_canon_sha256":"8ee7bb177213acf38fe55d61ab43d107eef81b5dfe767903fb3b029084df4a21"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:19.592228Z","signature_b64":"Kbu3rYeBBGPWuL2upyXfGRfErm/AUSd8IzG0HPDt+50x+VdvMyClGZK3Xc2mUXAp0OW0SwcVonGL44uo5t0GDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4a3b4ab1cfa1ae24bbafcdc7ff8a9af00a6bb7283c4cc4cb5e00bc4aa53e2fe2","last_reissued_at":"2026-05-17T23:42:19.591639Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:19.591639Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A population of high-velocity absorption-line systems residing in the Local Group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Cora Fechner, Philipp Richter, Sietske J. 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