Excited oxygen states in the Venus nightglow <sup>1</sup>This article is part of a Special Issue that honours the work of Dr. Donald M. Hunten FRSC who passed away in December 2010 after a very illustrious career.
Bibliographic record
Abstract
In the absence of solar radiation, the most common photoexcitation process in the terrestrial planets results from atom recombination. Thus, in the Mars and Venus atmospheres recombination of O(3P) + O(3P) and O(3P) + N(4S) leads to emissions of excited states of O2 and NO, respectively. However, in the Earth’s atmosphere there are ionospheric emissions that depend on interactions of charged species, for example, the oxygen red and green lines arising from dissociative recombination (DR) of [Formula: see text]. In the case of the CO2 planets, the predominant ionospheric ion is also [Formula: see text], so that in principle DR is important in that environment, where the markers would also be the red and green lines. Whether these can be detected depends on DR rates and the radiating efficiencies of these species. In this report we discuss the history of green line detection in the Venus nightglow as well as the observations of excited O2 molecules, and the lack of appearance of the O2 (b–X) Atmospheric 0–0 band.
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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) | 0.002 | 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".