Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3107117155', 'doi': None, 'title': 'Rotation and Mass Distribution in the Spiral Galaxy NGC6643', 'display_name': 'Rotation and Mass Distribution in the Spiral Galaxy NGC6643', 'publication_year': 1981, 'publication_date': '1981-12-01', 'ids': {'openalex': 'https://openalex.org/W3107117155', 'mag': '3107117155'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://ui.adsabs.harvard.edu/abs/1981SvA....25..664K/abstract', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306530515', 'display_name': 'Soviet Astronomy', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': [], '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/A5056076995', 'display_name': 'G. A. Kyazumov', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': True, 'raw_author_name': 'G. A. Kyazumov', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': ['https://openalex.org/A5056076995'], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.0, 'has_fulltext': False, 'cited_by_count': 0, 'citation_normalized_percentile': {'value': 0.0, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 0, 'max': 55}, 'biblio': {'volume': '25', 'issue': '6', 'first_page': '664', 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12917', 'display_name': 'Astronomical Instrumentation and Spectroscopy', 'score': 0.9969, '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'}}, 'topics': [{'id': 'https://openalex.org/T12917', 'display_name': 'Astronomical Instrumentation and Spectroscopy', 'score': 0.9969, '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 Astrophysics and Exoplanet Studies', 'score': 0.9961, '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/T10477', 'display_name': 'Star Formation in Molecular Clouds and Protoplanetary Disks', 'score': 0.984, '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/mass-distribution', 'display_name': 'Mass distribution', 'score': 0.71500593}, {'id': 'https://openalex.org/keywords/planetary-systems', 'display_name': 'Planetary Systems', 'score': 0.553032}, {'id': 'https://openalex.org/keywords/stellar-astrophysics', 'display_name': 'Stellar Astrophysics', 'score': 0.539846}, {'id': 'https://openalex.org/keywords/young-stellar-objects', 'display_name': 'Young Stellar Objects', 'score': 0.534033}, {'id': 'https://openalex.org/keywords/star-formation', 'display_name': 'Star Formation', 'score': 0.530704}, {'id': 'https://openalex.org/keywords/irregular-galaxy', 'display_name': 'Irregular galaxy', 'score': 0.52922606}, {'id': 'https://openalex.org/keywords/protoplanetary-disks', 'display_name': 'Protoplanetary Disks', 'score': 0.513069}, {'id': 'https://openalex.org/keywords/unbarred-spiral-galaxy', 'display_name': 'Unbarred spiral galaxy', 'score': 0.4572037}], 'concepts': [{'id': 'https://openalex.org/C134222618', 'wikidata': 'https://www.wikidata.org/wiki/Q2713132', 'display_name': 'Mass distribution', 'level': 3, 'score': 0.71500593}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.5757452}, {'id': 'https://openalex.org/C63585750', 'wikidata': 'https://www.wikidata.org/wiki/Q2488', 'display_name': 'Spiral galaxy', 'level': 3, 'score': 0.5602855}, {'id': 'https://openalex.org/C188525179', 'wikidata': 'https://www.wikidata.org/wiki/Q190397', 'display_name': 'Irregular galaxy', 'level': 5, 'score': 0.52922606}, {'id': 'https://openalex.org/C74050887', 'wikidata': 'https://www.wikidata.org/wiki/Q848368', 'display_name': 'Rotation (mathematics)', 'level': 2, 'score': 0.47543597}, {'id': 'https://openalex.org/C206564472', 'wikidata': 'https://www.wikidata.org/wiki/Q1475614', 'display_name': 'Galaxy rotation curve', 'level': 4, 'score': 0.47527543}, {'id': 'https://openalex.org/C118836567', 'wikidata': 'https://www.wikidata.org/wiki/Q2743798', 'display_name': 'Unbarred spiral galaxy', 'level': 5, 'score': 0.4572037}, {'id': 'https://openalex.org/C174128100', 'wikidata': 'https://www.wikidata.org/wiki/Q846907', 'display_name': 'Spiral (railway)', 'level': 2, 'score': 0.43797514}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.3933666}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.36394155}, {'id': 'https://openalex.org/C98444146', 'wikidata': 'https://www.wikidata.org/wiki/Q318', 'display_name': 'Galaxy', 'level': 2, 'score': 0.34962666}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.31861642}, {'id': 'https://openalex.org/C22540661', 'wikidata': 'https://www.wikidata.org/wiki/Q644507', 'display_name': 'Interacting galaxy', 'level': 4, 'score': 0.300119}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.2569143}, {'id': 'https://openalex.org/C37119246', 'wikidata': 'https://www.wikidata.org/wiki/Q190438', 'display_name': 'Dwarf galaxy', 'level': 3, 'score': 0.17335254}, {'id': 'https://openalex.org/C184665706', 'wikidata': 'https://www.wikidata.org/wiki/Q186310', 'display_name': 'Halo', 'level': 3, 'score': 0.13257715}, {'id': 'https://openalex.org/C134306372', 'wikidata': 'https://www.wikidata.org/wiki/Q7754', 'display_name': 'Mathematical analysis', 'level': 1, 'score': 0.11150396}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://ui.adsabs.harvard.edu/abs/1981SvA....25..664K/abstract', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306530515', 'display_name': 'Soviet Astronomy', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], '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': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W81902657', 'https://openalex.org/W3195116329', 'https://openalex.org/W3186000491', 'https://openalex.org/W3174850553', 'https://openalex.org/W3164731390', 'https://openalex.org/W3164082148', 'https://openalex.org/W3136625016', 'https://openalex.org/W3136621537', 'https://openalex.org/W3132606401', 'https://openalex.org/W3127085907', 'https://openalex.org/W3118580525', 'https://openalex.org/W3112777705', 'https://openalex.org/W3087156806', 'https://openalex.org/W3043680751', 'https://openalex.org/W3022659885', 'https://openalex.org/W3013749354', 'https://openalex.org/W3009138073', 'https://openalex.org/W2088275538', 'https://openalex.org/W2046222355', 'https://openalex.org/W1971111586'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3107117155', 'counts_by_year': [], 'updated_date': '2024-09-19T17:50:32.726905', 'created_date': '2020-12-07'}