Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2045034179', 'doi': 'https://doi.org/10.1007/bf00153291', 'title': 'The structure and evolution of coronal holes', 'display_name': 'The structure and evolution of coronal holes', 'publication_year': 1975, 'publication_date': '1975-05-01', 'ids': {'openalex': 'https://openalex.org/W2045034179', 'doi': 'https://doi.org/10.1007/bf00153291', 'mag': '2045034179'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf00153291', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S39223014', 'display_name': 'Solar Physics', 'issn_l': '0038-0938', 'issn': ['0038-0938', '1573-093X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5040836407', 'display_name': 'A. F. Timothy', 'orcid': None}, 'institutions': [], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'A. F. Timothy', 'raw_affiliation_strings': ['American Science and Engineering Inc., Cambridge, U.S.A.'], 'affiliations': [{'raw_affiliation_string': 'American Science and Engineering Inc., Cambridge, U.S.A.', 'institution_ids': []}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5051094947', 'display_name': 'A. S. Krieger', 'orcid': 'https://orcid.org/0000-0002-3639-2435'}, 'institutions': [], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'A. S. Krieger', 'raw_affiliation_strings': ['American Science and Engineering Inc., Cambridge, U.S.A.'], 'affiliations': [{'raw_affiliation_string': 'American Science and Engineering Inc., Cambridge, U.S.A.', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5080441470', 'display_name': 'G. S. Vaiana', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210124175', 'display_name': 'Center for Astrophysics Harvard & Smithsonian', 'ror': 'https://ror.org/03c3r2d17', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I103187081', 'https://openalex.org/I136199984', 'https://openalex.org/I4210124175']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'G. S. Vaiana', 'raw_affiliation_strings': ['Center for Astrophysics, Cambridge, U.S.A.'], 'affiliations': [{'raw_affiliation_string': 'Center for Astrophysics, Cambridge, U.S.A.', 'institution_ids': ['https://openalex.org/I4210124175']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2890, 'currency': 'EUR', 'value_usd': 3690, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 36.57, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 269, 'citation_normalized_percentile': {'value': 0.995866, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '42', 'issue': '1', 'first_page': '135', 'last_page': '156'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10251', 'display_name': 'Solar Physics and Space Weather', 'score': 1.0, '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'}}, 'topics': [{'id': 'https://openalex.org/T10251', 'display_name': 'Solar Physics and Space Weather', 'score': 1.0, '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/T10159', 'display_name': 'Space Weather and Magnetospheric Physics', 'score': 0.9971, '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/T10039', 'display_name': 'Stellar Astrophysics and Exoplanet Studies', 'score': 0.995, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/coronal-hole', 'display_name': 'Coronal hole', 'score': 0.80008453}, {'id': 'https://openalex.org/keywords/helmet-streamer', 'display_name': 'Helmet streamer', 'score': 0.65222865}, {'id': 'https://openalex.org/keywords/polarity', 'display_name': 'Polarity (international relations)', 'score': 0.6515205}, {'id': 'https://openalex.org/keywords/corona', 'display_name': 'Corona (planetary geology)', 'score': 0.6451653}, {'id': 'https://openalex.org/keywords/coronal-loop', 'display_name': 'Coronal loop', 'score': 0.64008063}, {'id': 'https://openalex.org/keywords/radiation-belts', 'display_name': 'Radiation Belts', 'score': 0.423641}], 'concepts': [{'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.8962881}, {'id': 'https://openalex.org/C64162976', 'wikidata': 'https://www.wikidata.org/wiki/Q127948', 'display_name': 'Coronal hole', 'level': 5, 'score': 0.80008453}, {'id': 'https://openalex.org/C29705727', 'wikidata': 'https://www.wikidata.org/wiki/Q294562', 'display_name': 'Polar', 'level': 2, 'score': 0.6707559}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.6549742}, {'id': 'https://openalex.org/C26218039', 'wikidata': 'https://www.wikidata.org/wiki/Q335186', 'display_name': 'Helmet streamer', 'level': 5, 'score': 0.65222865}, {'id': 'https://openalex.org/C2777361361', 'wikidata': 'https://www.wikidata.org/wiki/Q1112585', 'display_name': 'Polarity (international relations)', 'level': 3, 'score': 0.6515205}, {'id': 'https://openalex.org/C2776779350', 'wikidata': 'https://www.wikidata.org/wiki/Q1134503', 'display_name': 'Corona (planetary geology)', 'level': 3, 'score': 0.6451653}, {'id': 'https://openalex.org/C146138569', 'wikidata': 'https://www.wikidata.org/wiki/Q556028', 'display_name': 'Coronal loop', 'level': 5, 'score': 0.64008063}, {'id': 'https://openalex.org/C6260449', 'wikidata': 'https://www.wikidata.org/wiki/Q41364', 'display_name': 'Wavelength', 'level': 2, 'score': 0.50528985}, {'id': 'https://openalex.org/C74050887', 'wikidata': 'https://www.wikidata.org/wiki/Q848368', 'display_name': 'Rotation (mathematics)', 'level': 2, 'score': 0.48649067}, {'id': 'https://openalex.org/C14228908', 'wikidata': 'https://www.wikidata.org/wiki/Q2920483', 'display_name': 'Protein filament', 'level': 2, 'score': 0.44263744}, {'id': 'https://openalex.org/C115260700', 'wikidata': 'https://www.wikidata.org/wiki/Q11408', 'display_name': 'Magnetic field', 'level': 2, 'score': 0.39815414}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.36338896}, {'id': 'https://openalex.org/C72886185', 'wikidata': 'https://www.wikidata.org/wiki/Q129890', 'display_name': 'Coronal mass ejection', 'level': 4, 'score': 0.3155436}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.23322168}, {'id': 'https://openalex.org/C120665830', 'wikidata': 'https://www.wikidata.org/wiki/Q14620', 'display_name': 'Optics', 'level': 1, 'score': 0.10582721}, {'id': 'https://openalex.org/C108411613', 'wikidata': 'https://www.wikidata.org/wiki/Q79833', 'display_name': 'Solar wind', 'level': 3, 'score': 0.09219167}, {'id': 'https://openalex.org/C87355193', 'wikidata': 'https://www.wikidata.org/wiki/Q411', 'display_name': 'Astrobiology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C54355233', 'wikidata': 'https://www.wikidata.org/wiki/Q7162', 'display_name': 'Genetics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C2779900269', 'wikidata': 'https://www.wikidata.org/wiki/Q1408724', 'display_name': 'Venus', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C1491633281', 'wikidata': 'https://www.wikidata.org/wiki/Q7868', 'display_name': 'Cell', 'level': 2, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf00153291', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S39223014', 'display_name': 'Solar Physics', 'issn_l': '0038-0938', 'issn': ['0038-0938', '1573-093X'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319900', 'host_organization_name': 'Springer Science+Business Media', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310319900'], 'host_organization_lineage_names': ['Springer Nature', 'Springer Science+Business Media'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 25, 'referenced_works': ['https://openalex.org/W1968653599', 'https://openalex.org/W1968671242', 'https://openalex.org/W1976456772', 'https://openalex.org/W1977971109', 'https://openalex.org/W1982847542', 'https://openalex.org/W1984840155', 'https://openalex.org/W1999439356', 'https://openalex.org/W2002625849', 'https://openalex.org/W2010901146', 'https://openalex.org/W2026503158', 'https://openalex.org/W2026778983', 'https://openalex.org/W2047648818', 'https://openalex.org/W2051705368', 'https://openalex.org/W2053635356', 'https://openalex.org/W2060908577', 'https://openalex.org/W2070365187', 'https://openalex.org/W2072519514', 'https://openalex.org/W2095906411', 'https://openalex.org/W2147654668', 'https://openalex.org/W2173406138', 'https://openalex.org/W2177327468', 'https://openalex.org/W2554732597', 'https://openalex.org/W2604692910', 'https://openalex.org/W3007974231', 'https://openalex.org/W4235600320'], 'related_works': ['https://openalex.org/W4367190781', 'https://openalex.org/W4281991629', 'https://openalex.org/W4235600320', 'https://openalex.org/W3130912523', 'https://openalex.org/W3105640122', 'https://openalex.org/W2919963152', 'https://openalex.org/W2056546841', 'https://openalex.org/W2012950761', 'https://openalex.org/W1976124114', 'https://openalex.org/W1556625524'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2045034179', 'counts_by_year': [{'year': 2024, 'cited_by_count': 6}, {'year': 2023, 'cited_by_count': 14}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 6}, {'year': 2019, 'cited_by_count': 6}, {'year': 2018, 'cited_by_count': 5}, {'year': 2017, 'cited_by_count': 6}, {'year': 2016, 'cited_by_count': 8}, {'year': 2014, 'cited_by_count': 4}, {'year': 2013, 'cited_by_count': 5}, {'year': 2012, 'cited_by_count': 7}], 'updated_date': '2024-09-19T14:49:50.174504', 'created_date': '2016-06-24'}