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Record W2008707255 · doi:10.1086/316860

The Interstellar Environment of the Wolf-Rayet Star WR 143

2000· article· en· W2008707255 on OpenAlexaffabout
François Cazzolato, S. Pineault

Bibliographic record

VenueThe Astronomical Journal · 2000
Typearticle
Languageen
FieldPhysics and Astronomy
TopicAstrophysics and Star Formation Studies
Canadian institutionsUniversité Laval
Fundersnot available
KeywordsPhysicsAstrophysicsWolf–Rayet starGalactic planeAstronomyStarsLine-of-sightO-type starInterstellar mediumH II regionStar formationGalaxy

Abstract

fetched live from OpenAlex

As part of a systematic study of the environment of Galactic WR stars, a region along the line of sight to Cygnus ( l = 77.5°, b = 0°) has been studied. The neutral hydrogen 21 cm line distribution shows the existence of a cavity expanding from the Wolf-Rayet star WR 143. This cavity, created by the stellar wind of the star, has a mean radius of 7 pc (assuming a distance of about 1 kpc), an expansion velocity of more than 8 km s -1 , and a missing mass of some 150 M ⊙ and seems to be surrounded by an H I shell, likely made up of the gas pushed by the star. Although this hole (also called bubble) is quite conspicuous in H I, there seems to be no trace of it at the other wavelengths studied (radio continuum and infrared). All radio observations were obtained at the Dominion Radio Astrophysical Observatory as part of the Canadian Galactic Plane Survey.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.002
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
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 head0.005
GPT teacher head0.189
Teacher spread0.183 · 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 source (direct Gemma or distilled Codex), 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

Citations8
Published2000
Admission routes2
Has abstractyes

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Same venueThe Astronomical JournalSame topicAstrophysics and Star Formation StudiesFrench-language works237,207