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Record W1994808236 · doi:10.1086/382241

1420 and 408 MHz Continuum Observations of the IC 443/G189.6+3.3 Region

2004· article· en· W1994808236 on OpenAlexaff
D. A. Leahy

Bibliographic record

VenueThe Astronomical Journal · 2004
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstrophysics and Star Formation Studies
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsPhysicsAstronomyAstrophysics

Abstract

fetched live from OpenAlex

Observations at 1420 and 408 MHz were made with the Dominion Radio Astrophysical Observatory Synthesis Telescope of the region including IC 443 and G189.6+3.3. A spectral index map is computed: the bright northeast part of IC 443 has 408–1420 MHz spectral index α = 0.43 ± 0.02, the southwest part has α = 0.2–0.6, and G189.6+3.3 has α = 0.1–0.7. The radio images are compared with optical, infrared, molecular line, and X-ray images. The appearance of IC 443 as two half-shells is due to the ring of shocked molecular gas that sits at the join of the half-shells. G189.6+3.3 has nonthermal radio emission and is confirmed as a separate supernova remnant. The pulsar wind nebula found by Chandra likely originates in G189.6+3.3 rather than in IC 443.

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.

How this classification was reachedexpand

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.356
Threshold uncertainty score0.315

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 integrity0.0000.000
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 head0.019
GPT teacher head0.219
Teacher spread0.200 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations43
Published2004
Admission routes1
Has abstractyes

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