{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"dd020eb03eafc044b42e40d680d56a593c57d151189dd9e32403528ef16ec0b7","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b","ff76c7bd6b2a5bac70e8ef4379ed718555e1ade8976756957638853fdf795be0"],"salt":"7a6ffbd853b92545707dacbdd5d27012c7016883779928a1ab5461c4539eefb0","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"identification","assisted_by":[],"external_id":"cosmo.cmb-anomalies.matter-dipole","kind":"phenomenon","literature_status":"contested","n":"2","parents":[],"plain":"Because the Earth moves relative to the cosmic microwave background, distant galaxies should look slightly more numerous in the direction of motion. Several catalogs show about twice the expected effect.","posed_since":"1984","precise":"The CMB dipole implies a velocity of about $3.7 \\times 10^{7}\\,\\mathrm{cm/s}$, which predicts a kinematic number-count dipole (Ellis-Baldwin test) for distant sources. CatWISE2020 quasars and NVSS radio galaxies give amplitudes about twice the prediction, reported at about $5\\sigma$ in joint analyses. Determine whether this signals a non-kinematic, intrinsic anisotropy incompatible with FLRW cosmology, or catalog systematics and clustering contributions.","problem_ref":"ff76c7bd6b2a5bac70e8ef4379ed718555e1ade8976756957638853fdf795be0","references":"","settled_by":"Number-count dipoles from independent deep surveys (Euclid, Rubin, SKA) with characterized selection functions, consistent or inconsistent with the kinematic value.","status_note":"2025 to 2026 reanalyses including clustering and higher multipoles disagree on the significance.","title":"Why is the distant-source count dipole larger than our motion predicts?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"694653a3a3ef4de1c072e2ecfd3b517ca93d10c69217594acbe231434260efad","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"d8756e3bf4de29638c110207d346d3c1f779e18c9ecbb5d4b89f8b2dcaae2f07","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"y9OXsGQK3sLMFHsvwRiKgsaBIrhHtDiAkRLjkuaCbAPFikzCf6BicERFEq6g75LVc1VsEvqMMGWQjPz5PhPxAg"},"schema":"pubphys.envelope/1"},"record_hash":"694653a3a3ef4de1c072e2ecfd3b517ca93d10c69217594acbe231434260efad","leaf_index":3110}