{"id":"https://openalex.org/A5158732291","orcid":null,"observed_orcids":[],"display_name":"Henk Hoekstra","raw_author_names":["Henk Hoekstra","Hoekstra, Henk"],"full_name":"Henk Hoekstra","works_count":6,"cited_by_count":0,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":0,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5158732291","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I121797337","ror":"https://ror.org/027bh9e22","display_name":"Leiden University","country_code":"NL","type":"education","lineage":["https://openalex.org/I121797337"]},"years":[2026]},{"institution":{"id":"https://openalex.org/I4387156226","ror":"https://ror.org/03es66g06","display_name":"Leiden Observatory","country_code":"NL","type":"facility","lineage":["https://openalex.org/I121797337","https://openalex.org/I4387156226"]},"years":[2026]}],"last_known_institutions":[{"id":"https://openalex.org/I121797337","ror":"https://ror.org/027bh9e22","display_name":"Leiden University","country_code":"NL","type":"education","lineage":["https://openalex.org/I121797337"]},{"id":"https://openalex.org/I4387156226","ror":"https://ror.org/03es66g06","display_name":"Leiden Observatory","country_code":"NL","type":"facility","lineage":["https://openalex.org/I121797337","https://openalex.org/I4387156226"]}],"topics":[{"id":"https://openalex.org/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","count":6,"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":4,"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","count":3,"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/T10095","display_name":"Cosmology and Gravitation Theories","count":3,"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/T11090","display_name":"Dark Matter and Cosmic Phenomena","count":2,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T11090","display_name":"Dark Matter and Cosmic Phenomena","value":1.31e-05,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"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/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","value":9.6e-06,"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/T10095","display_name":"Cosmology and Gravitation Theories","value":7.8e-06,"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","value":7.1e-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":2.7e-06,"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":"33024259","wikidata":"https://www.wikidata.org/wiki/Q76250","display_name":"Redshift","score":0.9059000015258789},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.8170999884605408},{"id":"98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","score":0.6970999836921692},{"id":"44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","score":0.6743999719619751},{"id":"1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","score":0.5760999917984009}],"counts_by_year":[{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2025,"works_count":3,"oa_works_count":3,"cited_by_count":0},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":0}],"display_name_alternatives":["Henk Hoekstra","Hoekstra, Henk"],"block_key":"h hoekstra","works_api_url":"https://api.openalex.org/works?filter=author.id:A5158732291","awards_count":0,"updated_date":"2026-11-07T12:08:38","created_date":"2026-10-15T00:00:00"}
