PDS70, witnessing a young solar system analog in formation with SPHERE/ALMA
Bibliographic record
Abstract
PDS 70 is a young (5 Myr) star hosting a known transition disk with a large gap resolved by (sub-)millimeter observations with SMA and ALMA. Recent SPHERE XAO high-contrast images revealed the presence of a massive (7 MJup) giant exoplanet (PDS70 b) at 22 au from the star, well inside the disk gap and between the inner and outer belts (Asteroids- end Kuiper-belts analogs of our Solar System). Confirmed with other instruments (e.g. MagAO, SINFONI, MUSE), these new observations revealed ongoing accretion on PDS 70 b. In addition, recent Hα imaging with MUSE also suggested the presence of a second planet (PDS 70 c) in this system. New SPHERE observations enabled us to confirm and characterize this second planet, also recently associated with a circum-planetary disk resolved with ALMA. In this talk, through the PD70 study, we will highlight how SPHERE and ALMA synergy offers an unique and powerful opportunity to explore the properties and the architecture of young, planetary systems in formation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 | 0.001 |
| 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 | 0.001 |
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 teacher head, 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".