This is a reader-facing guide to the paper: what it is for, where it sits in the 70-entry parent-and-companion release, what the manuscript abstract says, and what not to over-read from the web page.
Declared calibration ledgers and observational stress windows for cosmology, compact objects, and carrier conversion.
Use this block for declared calibration ledgers and public witness windows. Treat every empirical contact as explicitly bounded.
The QAC--VP0 companion record gives the first public-data proxy bridge evaluation for the finite-domain angular-momentum compensation sector of the covariant CHC framework (CHC-QAC). The companion record evaluates whether a declared observational projected-proxy lane and a declared simulation proxy lane can be identified on public MaNGA and IllustrisTNG data surfaces under a fixed non-closure boundary. The archived manuscript remains authoritative for exact notation, equations, assumptions, and exclusions.
This web guide uses a reader-safe rendering of the manuscript abstract. The manuscript PDF and canonical archive remain authoritative for exact notation, equations, definitions, and exclusions.
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The QAC sector is read here as a finite-domain angular-momentum compensation grammar with declared proxy families. A public-data companion record may test whether a proxy object can be identified, computed, and reported under a fixed sign convention. Such a record does not by itself close a finite-window environmental compensation theorem.
The present companion record has two active lanes. The observational lane is a projected MaNGA lane; it uses stellar-kinematic MAPS products only to build a line-of-sight proxy. The simulation lane is a TNG public API lane; it uses a bounded object-level subhalo sample only to build a minimal radial spin-projection proxy. The construction is rejected as a finite-window closure unless the environment family, sign convention, shell/web/host prescription, observable-family definition, and covariance object are all supplied under one fixed comparison convention. That stronger object is not supplied here.
MaNGA observational surface..
SDSS MaNGA DR17 is the final MaNGA data release and includes the complete MaNGA survey data products. The DAP provides stellar kinematic maps, including stellar velocity and dispersion maps, which are suitable for a projected line-of-sight proxy lane but not for a three-dimensional angular-momentum closure [citation].
IllustrisTNG simulation surface..
IllustrisTNG publishes simulation snapshots, group catalogs, merger trees, and supplementary data products. The official specifications describe FoF halo and Subfind subhalo group-catalog products. The API documentation also defines object-level subhalo endpoints and the mapping of group-catalog vector fields into flattened returned quantities [citation]. These data surfaces are adequate for a bounded simulation proxy board. They are not, without a complete field-subset source and environmental prescription, a finite-window compensation closure.
For the observational lane, a projected proxy is computed from the MaNGA velocity-map surface according to the declared proxy rule. The companion record lists this object as a projected line-of-sight proxy only:
\Pobs = \Jproxy^{\mathrm{MaNGA}}_{\mathrm{LOS}} .For the simulation lane, the object-level fallback uses the subhalo position and spin vector to define a bounded radial spin-projection proxy,
\Psim_i = \frac{\vect S_i\cdot \vect r_i}{\|\vect S_i\|\,\|\vect r_i\|},for each public subhalo object for which the returned values are finite. This proxy is a diagnostic scalar board, not a halo-web compensation law.
The companion gate classification is reproduced in Table reference. The final status is QAC-BRIDGE-PARTIAL. This label means that both a public observational proxy lane and a public simulation proxy lane were evaluated under the declared non-claim boundary. It does not mean that the proxy families have been matched by a calibrated covariance object or that a finite environmental compensation law has been established.
Figure or table content is omitted from the web reader; use the canonical manuscript for the exact object.
The MaNGA projected-proxy lane returns three finite rows. The TNG primary group-catalog field-subset route does not yield a complete public group-catalog field-subset surface on the declared source boundary. It is therefore not treated as supplying a completed group-catalog HDF5 data surface. The bounded fallback route then retrieves one hundred TNG100-1 snapshot-99 subhalo objects and returns one hundred finite radial spin-projection rows. The final gate classification records QAC-BRIDGE-PARTIAL.
Figure or table content is omitted from the web reader; use the canonical manuscript for the exact object.
The companion source summary identifies the primary gate classification, the source summaries, the declared MaNGA/TNG sample plans, and the public-source summaries used for the proxy evaluation. The route type is a public-data proxy evaluation with an explicitly incomplete group-catalog field-subset route and an object-level TNG fallback. Admissible interpretation: QAC-BRIDGE-PARTIAL on the declared MaNGA/TNG proxy surfaces. Excluded interpretation: finite-window QAC closure, theorem-level angular-momentum compensation, rotating-Universe evidence, total cosmic angular-momentum measurement, or a full structure-formation model.
The present result must be re-evaluated if any of the following occurs:
- the TNG object-level fallback sample is found to contain restricted-access source dependence or irreproducible public-source boundaries; - the MaNGA projected proxy row construction is found to use an undeclared sign convention; - the group-catalog field-subset route is later completed and changes the simulation proxy board materially; - a covariance object is supplied and the bridge classification is re-evaluated; or - the public record is read as a rotating-universe, total-angular-momentum, or finite-window closure claim.
A scientifically distinct follow-up record would require a completed TNG group-catalog field-subset acquisition, a larger preregistered MaNGA sample, an explicit shell/web/host environmental prescription, and a covariance object. Such a follow-up would be assessed separately and is not part of the present VP0 classification.
QAC-VP0 establishes a reproducible public simulation--observation proxy bridge for the CHC-QAC sector. The observational MaNGA lane returns QAC-OBS-PROXY-CHECK-SATISFIED; the bounded TNG fallback lane returns QAC-SIM-PROXY-CHECK-SATISFIED; and the combined bridge evaluation returns QAC-BRIDGE-PARTIAL. The result states a public proxy surface for QAC but does not claim finite-window compensation closure, covariance-object closure, shell/web/host closure, theorem-level QAC closure, global rotation, or total cosmic angular momentum.
Data and code availability..
This companion manuscript uses public observational, simulation, mock-observable, or supplementary bridge materials as described in the text. Cited public references and companion statements, where provided, are identified by the companion source summaries cited in the text.
Funding and competing interests..
No external funding was received for this work. The author declares no competing interests.
Read the abstract, then scan the section list before opening archive or companion materials.
Public-Data Expansion and Covariance-Prep Proxy Gates in CHC
This paper belongs to CHC Framework Series v1.0. Open the DOI record for the public v1.0 archive package.
10.5281/zenodo.20282162Separate verification or support packages can be linked here if they are later released as public records.