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Record W3128979803 · doi:10.1051/0004-6361/202140486

The Galactic Faraday rotation sky 2020

2021· preprint· en· W3128979803 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueAstronomy and Astrophysics · 2021
Typepreprint
Languageen
FieldMathematics
TopicStatistical and numerical algorithms
Canadian institutionsDominion Astrophysical ObservatoryCanadian Institute for Theoretical AstrophysicsUniversity of TorontoUniversity of Calgary
FundersDST-NRF Centre Of Excellence In Tree Health BiotechnologyU.S. Naval ObservatoryUniversity of HertfordshireU.S. Naval Research LaboratoryIstituto Nazionale di AstrofisicaNatural Sciences and Engineering Research Council of CanadaObservatoire de Paris, Université de Recherche Paris Sciences et LettresGauss Centre for SupercomputingCommonwealth Scientific and Industrial Research OrganisationMinisterium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-WestfalenUniversité d'OrléansOffice of Naval ResearchCentre National de la Recherche ScientifiqueMax-Planck-GesellschaftNederlandse Organisatie voor Wetenschappelijk OnderzoekJapan Society for the Promotion of ScienceCanada Research ChairsNational Astronomical Observatory of JapanEuropean CommissionScience and Technology Facilities CouncilUniversity of TorontoBundesministerium für Bildung und ForschungNational Science FoundationScience Foundation IrelandPaul G. Allen Family Foundation
KeywordsSkyFaraday effectPhysicsFaraday cageAstrophysicsRotation (mathematics)Milky WayData setField (mathematics)StarsAstronomyMagnetic fieldGeometryComputer scienceMathematicsArtificial intelligencePure mathematics

Abstract

fetched live from OpenAlex

Aims. This work provides an update to existing reconstructions of the Galactic Faraday rotation sky by processing almost all Faraday rotation data sets available at the end of the year 2020. Observations of extra-Galactic sources in recent years have further illuminated the previously underconstrained southern celestial sky, as well as parts of the inner disc of the Milky Way, along with other regions. This has culminated in an all-sky data set of 55 190 data points, thereby comprising a significant expansion on the 41 330 used in previous works. At the same time, this novelty makes an updated separation of the Galactic component a promising enterprise. The increased source density allows us to present our results in a resolution of about 1.3 × 10 −2 deg 2 (46.8 arcmin 2 ), which is a twofold increase compared to previous works. Methods. As for previous Faraday rotation sky reconstructions, this work is based on information field theory, namely, a Bayesian inference scheme for field-like quantities that handles noisy and incomplete data. Results. In contrast to previous reconstructions, we find a significantly thinner and pronounced Galactic disc with small-scale structures exceeding values of several thousand rad m −2 . The improvements can mainly be attributed to the new catalog of Faraday data, but are also supported by advances in correlation structure modeling within numerical information field theory. We also provide a detailed discussion on the statistical properties of the Faraday rotation sky and we investigate correlations with other data sets.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.975
Threshold uncertainty score0.845

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.017
GPT teacher head0.263
Teacher spread0.247 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it