Bibliographic record
Abstract
At first light, the overall AO system architecture for the Thirty Meter Telescope will consist of the Narrow Field Infra-Red AO System (NFIRAOS) and the associated Laser Guide Star Facility (LGSF). NFIRAOS is an order 60x60, dual conjugate, laser guide star AO system designed to obtain diffraction-limited performance in the near IR with high sky coverage. It will provide a delivered wavefront error of 190-200 nm RMS over a central 15-30 arc second field-of-view, and a lesser degree of atmospheric turbulence compensation over a larger 2 arc minute field for multi-object spectroscopy and low order (tip/tilt/focus) natural guide star wavefront sensing in the near IR. The LGSF generates 6 sodium laser guidestars for use with NFIRAOS, using 6 25-watt lasers located in the telescope azimuth structure and a laser launch telescope behind the TMT secondary mirror. In this paper, we review the work to date on requirements derivation, design development, performance analysis, component prototyping, and lab/field tests for these AO systems. The possible options for future MOAO, ExAO, GLAO, and MIRAO systems for TMT are also briefly described.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 0.004 |
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".