{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"1dbcaea2c191da265b39debb2cebcd02355ae92052310c6460118b02ce454111","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"5e6074046cbf3ef364bde4066d5e620fab9af70538e41debe75855e3f39332f8","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"astro.circumgalactic-medium","field":"astro","n":"1","review_cite":"J. Tumlinson, M. S. Peeples, J. K. Werk, The Circumgalactic Medium, Annual Review of Astronomy and Astrophysics, 2017","review_link":"https://arxiv.org/abs/1709.09180","review_verified":"true","summary":"Galaxies are surrounded by large halos of thin gas, the circumgalactic medium, that feed and receive gas from the galaxy. Most of the ordinary matter that should belong to a galaxy like ours is not found in its stars and disk gas.","title":"Circumgalactic medium and galactic baryon budget","topic_ref":null,"why":"Halo gas controls how galaxies get fuel for new stars and where the products of stellar explosions end up."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"0def120d1b6025e505d1b17c3590b27372b9f92290b62b2df74ed8a1826b48cb","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"0e900bd5a17d6d1706b85fa86389780366d4a62693330a1c9d1efc7922a51ebd","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"I65HP8V_mhUZcV_v2-RwVE3xYj6cZ-lYbtx_PiVRFESiX0xElAUvY83j3ossKinEveFFLJvAGoMTmbe6uQZjDg"},"schema":"pubphys.envelope/1"},"record_hash":"0def120d1b6025e505d1b17c3590b27372b9f92290b62b2df74ed8a1826b48cb","leaf_index":30}