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Record W1992683940 · doi:10.1109/hpcs.2006.14

Calculating Line Profiles of Non-Spherical Stars

2006· article· en· W1992683940 on OpenAlexaff
Catherine Lovekin, R. G. Deupree

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicInertial Sensor and Navigation
Canadian institutionsSaint Mary's UniversitySt. Mary's University
Fundersnot available
KeywordsPhysicsStarsLine-of-sightEquatorRotation (mathematics)Line (geometry)AstrophysicsSpectral lineDoppler effectPerpendicularAngular velocityRotation periodStar (game theory)OpticsAstronomyGeometryClassical mechanicsMathematicsLatitude

Abstract

fetched live from OpenAlex

We present a method for calculating synthetic line profiles for rapidly rotating, non-spherical stars. This parallel code includes the effects of the Doppler shift produced by the surface rotation, and is capable of simultaneously calculating the observed line profile for several different degrees of inclination between the observer and the star’s rotation axis. As expected, we find a significant difference between the line profile of a rapidly rotating star viewed pole on and the same star viewed equator on. This is a result of the increasing component of the rotational velocity along the line of sight, leading to a larger Doppler broadening. Using this code, we hope to model several line profiles and compare with observed spectra for rapidly rotating stars. Based on the shapes of these line profiles, it may be possible to constrain the inclination of the star, and other properties such as the latitudinal temperature variation.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.230
Threshold uncertainty score0.155

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 head0.006
GPT teacher head0.214
Teacher spread0.208 · 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 designBench or experimental
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

Citations0
Published2006
Admission routes1
Has abstractyes

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