Detection of long-period variations in the subdwarf B star PG 0101+039 on the basis of MOST photometry.
Bibliographic record
Abstract
We present the results of ∼ 400 hours of optical wide-band photometry for the long-period variable subdwarf B (sdB) star PG 0101+039 obtained by MOST, Canada’s first orbiting space telescope, in September/October 2004. Despite the relative faintness of the target, the observations uncovered three low-amplitude periodicities between 2600 and 7250 s attributed to intrinsic stellar pulsations, as well as an ellipsoidal deformation of the subdwarf due to its close binary status. The fact that slow pulsations were detected in a target as hot as PG 0101+039 is in conflict with current non-adiabatic theory, which only predicts the excitation of more rapid oscillations that have amplitudes too small to be observable when integrating over the visible disk of the star. In light of our findings we will thus have to reconsider our models and refine their construction.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".