{"id":"https://openalex.org/A5107828301","orcid":null,"observed_orcids":[],"display_name":"S. Gratton","raw_author_names":["Gratton, S.","S. Gratton"],"full_name":"Gratton, S.","works_count":22,"cited_by_count":5539,"summary_stats":{"2yr_mean_citedness":5.6923076923076925,"h_index":10,"i10_index":10},"ids":{"openalex":"https://openalex.org/A5107828301","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I184942183","ror":"https://ror.org/01xtthb56","display_name":"University of Oslo","country_code":"NO","type":"education","lineage":["https://openalex.org/I184942183"]},"years":[2016]},{"institution":{"id":"https://openalex.org/I241749","ror":"https://ror.org/013meh722","display_name":"University of Cambridge","country_code":"GB","type":"education","lineage":["https://openalex.org/I241749"]},"years":[2026,2019,2017,2015,2014]},{"institution":{"id":"https://openalex.org/I4396570579","ror":"https://ror.org/01cyz3n15","display_name":"DTU Space","country_code":null,"type":"facility","lineage":["https://openalex.org/I4396570579","https://openalex.org/I96673099"]},"years":[2015]},{"institution":{"id":"https://openalex.org/I96673099","ror":"https://ror.org/04qtj9h94","display_name":"Technical University of Denmark","country_code":"DK","type":"education","lineage":["https://openalex.org/I96673099"]},"years":[2015]}],"last_known_institutions":[{"id":"https://openalex.org/I241749","ror":"https://ror.org/013meh722","display_name":"University of Cambridge","country_code":"GB","type":"education","lineage":["https://openalex.org/I241749"]}],"topics":[{"id":"https://openalex.org/T10095","display_name":"Cosmology and Gravitation Theories","count":21,"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":13,"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/T11090","display_name":"Dark Matter and Cosmic Phenomena","count":12,"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/T11803","display_name":"Superconducting and THz Device Technology","count":7,"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/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","count":5,"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"}}],"topic_share":[{"id":"https://openalex.org/T11090","display_name":"Dark Matter and Cosmic Phenomena","value":7.35e-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/T11803","display_name":"Superconducting and THz Device Technology","value":5.71e-05,"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":5.18e-05,"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/T12450","display_name":"Radio Astronomy Observations and Technology","value":4.23e-05,"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":2.22e-05,"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"}}],"x_concepts":[{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.9553892612457275},{"id":"166126730","wikidata":"https://www.wikidata.org/wiki/Q725309","display_name":"Planck","score":0.9342939257621765},{"id":"207297109","wikidata":"https://www.wikidata.org/wiki/Q15605","display_name":"Cosmic microwave background","score":0.9193999767303467},{"id":"44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","score":0.8233574032783508},{"id":"120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","score":0.5397999882698059}],"counts_by_year":[{"year":2014,"works_count":2,"oa_works_count":1,"cited_by_count":610},{"year":2015,"works_count":4,"oa_works_count":4,"cited_by_count":1969},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":284},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":176},{"year":2019,"works_count":1,"oa_works_count":1,"cited_by_count":2426},{"year":2025,"works_count":2,"oa_works_count":2,"cited_by_count":69},{"year":2026,"works_count":11,"oa_works_count":9,"cited_by_count":5}],"display_name_alternatives":["Gratton, S.","S. Gratton"],"block_key":"gratton","works_api_url":"https://api.openalex.org/works?filter=author.id:A5107828301","updated_date":"2026-10-17T12:28:47","created_date":"2016-06-24T00:00:00"}