{"id":"W1978106706","doi":"10.1038/nature09684","title":"Images of a fourth planet orbiting HR 8799","year":2010,"lang":"en","type":"article","venue":"Nature","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":946,"is_retracted":false,"has_abstract":false,"ca_institutions":"Herzberg Institute of Astrophysics","funders":"","keywords":"Planet; Astrobiology; Astronomy; Physics","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00471763094485585,"score_gpt":0.2262097634252882,"score_spread":0.2214921324804324,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}