New insight into shocks and star formation in Orion: First light with GriF
Bibliographic record
Abstract
A new instrument, “GriF”, has been used on the Canada-France-Hawaii Telescope to record spatially and velocity resolved images, in the H 2 –0 S(1) line in the K -band, of a field in the core of the Orion Molecular Cloud, OMC1. Using the PUEO adaptive optics system combined with Fabry-Perot interferometry, diffraction limited spatial resolution of 015 and velocity discrimination of ~1 kms -1 has been achieved. These data yield graphic images of shocks in OMC1, presenting a level of detail which has not previously been attained. Observed structures suggest that a significant fraction of the regions strongly emitting in H 2 do so through local, internal shocks, associated with star formation within the clumps of gas involved. Thus the core of OMC1 is revealed for the first time as a region which contains a number of developed protostars.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| 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".