The TOI Solar Analog Spectroscopic Survey (TSASS) I. Solar Depletion Pattern of Refractory Elements Among 17 Analogs
Bibliographic record
Abstract
High-resolution spectroscopy has revealed that the Sun is depleted in refractory elements compared to other nearby solar analogs, and the existence or ingestion of planets are believed to leave such chemical imprints on their host stars. Previous works have quantified this solar chemical anomaly by defining a slope in abundance [X/H] as a function of condensation temperature, known as the Tc trend (Meléndez et al. 2009, Bedell et al. 2018). Various scenarios have been proposed to explain its nature, including solids locked up by terrestrial planets (Chambers 2010), trapping of dust by giants (Booth & Owen 2020) and planet engulfment (Oh et al. 2018). The TOI Solar Analog Spectroscopic Survey will follow up ~80 TOIs that host known planetsor candidates using high-quality spectra taken by Magellan MIKE and EXPRES on Lowell Discovery Telescope. We will identify alternative indicators aside from the Tc trend to explore links (or lack of) between planet existence and chemical abundancesof host stars.
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".