the data · union3-unity

Union3 / UNITY1.5 compressed SN distances

Name: Union3 / UNITY1.5 compressed SN distances
Creator: Rubin et al. (Union3/UNITY)
License: Public release ('union3_release', per the on-disk README); no download URL found on disk.

expansion Rubin et al. (Union3/UNITY) 6 files · 28.2 KB

Union3 compressed distance moduli from the UNITY1.5 Bayesian framework: 22 spline-node bins with covariance and inverse covariance, plus the original release FITS (mu_mat_union3_cosmo=2_mu.fits) whose first row/column carry z and mu. Third SN sample in the robustness ladder — pushes the evolving-DE preference to 3.3 sigma.

Files — sizes and hashes computed from disk, not quoted

file	size	sha-256
mu_mat_union3_cosmo=2_mu.fits	8.4 KB	ef98b7dde1025ee7…	download
union3_binned_mu.csv	711 B	47f62c9e370d5b7e…	download
union3_cov.txt	8.1 KB	e928bf20c33a7149…	download
union3_invcov.txt	8.4 KB	b03f29e4732e14cf…	download
README.md	1.8 KB	a6e877690ca7cc40…	download
simple_Gaussian_check.py	819 B	1813ed8aa9dc1087…	download

verify: shasum -a 256 <file> — must match the hash above or discard the file.

Used by claims

USR-2026-0003 The evolving-DE preference appears in all three SN compilations refit through one pipeline:... PROVISIONAL

Provenance

NO UPSTREAM URL ON RECORD — nothing sourceable was found on disk, and we don't invent links. See notes.

citation: arXiv:2311.12098
license / terms: Public release ('union3_release', per the on-disk README); no download URL found on disk.
local directory: /Users/davidthompson/Desktop/Dark Energy/data_ingest/union3_sne
notes: Lives in data_ingest/union3_sne, not engine/data/external. The arXiv citation is grounded in the engine's inline UNION3_BINNED table reference.

Serving, honestly

A download link here issues a short-lived redirect to our object-storage mirror (Tigris); the bytes come from there, not from this server, and the link expires after an hour. The upstream archive is always the canonical copy — cite it, not us. Anything we serve must match its published hash.