{"id":"https://openalex.org/A5160018542","orcid":null,"observed_orcids":[],"display_name":"J. Y. Choi","raw_author_names":["Choi, J. Y.","J. Y. Choi"],"full_name":"J. Y. Choi","works_count":1,"cited_by_count":0,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":0,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5160018542","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I223822909","ror":"https://ror.org/038t36y30","display_name":"Heidelberg University","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I71030271","ror":"https://ror.org/01f7bcy98","display_name":"Heidelberg Institute for Theoretical Studies","country_code":"DE","type":"facility","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414","https://openalex.org/I223822909","https://openalex.org/I71030271"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I223822909","ror":"https://ror.org/038t36y30","display_name":"Heidelberg University","country_code":"DE","type":"education","lineage":["https://openalex.org/I223822909"]},{"id":"https://openalex.org/I71030271","ror":"https://ror.org/01f7bcy98","display_name":"Heidelberg Institute for Theoretical Studies","country_code":"DE","type":"facility","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414","https://openalex.org/I223822909","https://openalex.org/I71030271"]}],"topics":[{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","count":1,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10251","display_name":"Solar and Space Plasma Dynamics","count":1,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","count":1,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12917","display_name":"Astronomy and Astrophysical Research","value":1.7e-06,"subfield":{"id":"https://openalex.org/subfields/3105","display_name":"Instrumentation"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","value":8e-07,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10251","display_name":"Solar and Space Plasma Dynamics","value":7e-07,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.7818999886512756},{"id":"110472602","wikidata":"https://www.wikidata.org/wiki/Q6472","display_name":"Stellar evolution","score":0.5723999738693237},{"id":"1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","score":0.38679999113082886},{"id":"110896241","wikidata":"https://www.wikidata.org/wiki/Q6220","display_name":"Subdwarf","score":0.31929999589920044},{"id":"130726490","wikidata":"https://www.wikidata.org/wiki/Q675076","display_name":"Light curve","score":0.3091000020503998}],"counts_by_year":[{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":0}],"display_name_alternatives":["Choi, J. Y.","J. Y. Choi"],"block_key":"j choi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5160018542","updated_date":"2026-10-31T12:29:50","created_date":"2026-10-29T00:00:00"}
