High-z Kinematic Corpus Z1: ALMA [CII] Morpho-Kinematic Data for 31 Star-Forming Galaxies at z = 4.26–5.68

Part of the EPS Research multi‑epoch kinematic platform: Full datasets, cross‑epoch corpora, executable examples, and the Astro‑Extractor are available at https://github.com/eps-research/rag-corpus-series

✅ CORRECTED VERSION — August 2026: Omega values for all 8 tier-1 rotators 
have been recomputed under the canonical Equation 6 of Flynn & Cannaliato 
(2025): omega = V2/R2 − (V1/R1) × (R1/R2)^1.5. All 8 values are positive 
(median +12.621 rad/Gyr, mean +18.099 rad/Gyr). The previously reported 
negative values (median −13.05 rad/Gyr withdrawn) are confirmed as an artifact of a 
formula-implementation discrepancy. See CORRECTIONS.md at 
https://github.com/eps-research/rag-corpus-series for full details.

The High-z Kinematic Corpus Z1 is the fourth and final corpus in the EPS Research RAG Astrophysics Corpus Series, completing a unified machine-readable knowledge base spanning stellar clusters, local dwarf irregulars, nearby spiral galaxies, and the high-redshift universe.

EPS Research RAG Astrophysics Corpus Series (complete):

Together these four corpora form a unified RAG knowledge base covering galactic kinematics from Milky Way globular clusters through local spiral and dwarf galaxies to the epoch approaching cosmic reionization. Each corpus is independently deployable as a retrieval-augmented generation (RAG) source for LLM-based astrophysical research pipelines, and collectively they support cross-redshift kinematic analysis under the Flynn & Cannaliato (2025) omega correction framework (DOI: 10.3389/fspas.2025.1680387).

This corpus — High-z Kinematic Corpus Z1:

ALMA [CII] 158μm morpho-kinematic data for 31 star-forming main sequence galaxies at z = 4.26–5.68 from the ALPINE survey (Jones et al. 2021, MNRAS). Eight confirmed rotators (ROT) carry quality tier 1 per-ring rotation curves from 3DBarolo tilted-ring fits with 2–3 rings per galaxy, Vrot and σ per ring, and dynamical mass estimates. The remaining 23 galaxies carry morpho-kinematic classification only (quality tier 2). All galaxies include stellar mass (Faisst et al. 2020), SFR, Wisnioski et al. (2015) disk criteria, and geometric parameters.

File formats: Single nested JSON, RAG-ready JSONL (one galaxy per line), flat summary CSV (31 rows), per-galaxy ZIP archive, three executable Jupyter notebook examples with output figures, and full ingestion and validation scripts.

Key results from worked examples:  Applying the Flynn & Cannaliato (2025) canonical Eq.6 to all 8 tier-1 rotators yields positive omega values (median +12.621 rad/Gyr, mean +18.099 rad/Gyr). All 8 values are positive. Previously reported negative values (median −13.05 rad/Gyr withdrawn) were an artifact of a formula-implementation discrepancy and have been withdrawn. See CORRECTIONS.md for details.  

Important caveats: Maximum redshift is z=5.6773 (DC773957), not z=6. Tier-1 quality is limited by ALMA resolution (~6–7 kpc beam at z~5) and 2–3 rings per galaxy. No baryonic decomposition available. Full validation requires future deep ALMA + JWST observations.

Primary data sources: Jones et al. (2021), MNRAS, arXiv:2104.03099; Le Fèvre et al. (2020), A&A 643, A1; Béthermin et al. (2020), A&A 643, A2; Faisst et al. (2020), ApJS 247, 61. ALMA project 2017.1.00428.L.

Full Platform: This dataset is part of the EPS Research multi‑epoch kinematic platform (SPARC + THINGS + LITTLE THINGS + WALLABY DR2 + Milky Way GC corpus + High-z Kinematic Corpus Z1 (z=4.26–5.68). All corpora, executable notebooks, the Astro‑Extractor, and the unified schema are available at: https://github.com/eps-research/rag-corpus-series

Eq.6 operator-precedence correction — metadata updated 2026-08-24