Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3098526749', 'doi': 'https://doi.org/10.3847/2041-8213/aab20a', 'title': 'Enhanced Stellar Activity for Slow Antisolar Differential Rotation?', 'display_name': 'Enhanced Stellar Activity for Slow Antisolar Differential Rotation?', 'publication_year': 2018, 'publication_date': '2018-03-10', 'ids': {'openalex': 'https://openalex.org/W3098526749', 'doi': 'https://doi.org/10.3847/2041-8213/aab20a', 'mag': '3098526749'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.3847/2041-8213/aab20a', 'pdf_url': 'https://iopscience.iop.org/article/10.3847/2041-8213/aab20a/pdf', 'source': {'id': 'https://openalex.org/S4210175824', 'display_name': 'The Astrophysical Journal Letters', 'issn_l': '2041-8205', 'issn': ['2041-8205', '2041-8213'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320083', 'host_organization_name': 'IOP Publishing', 'host_organization_lineage': ['https://openalex.org/P4310311669', 'https://openalex.org/P4310320083'], 'host_organization_lineage_names': ['Institute of Physics', 'IOP Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['arxiv', 'crossref', 'datacite'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://iopscience.iop.org/article/10.3847/2041-8213/aab20a/pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5023835521', 'display_name': 'Axel Brandenburg', 'orcid': 'https://orcid.org/0000-0002-7304-021X'}, 'institutions': [{'id': 'https://openalex.org/I4210135511', 'display_name': 'AlbaNova', 'ror': 'https://ror.org/044kkfr75', 'country_code': 'SE', 'type': 'facility', 'lineage': ['https://openalex.org/I4210135511']}, {'id': 'https://openalex.org/I4210114008', 'display_name': 'Laboratory for Atmospheric and Space Physics', 'ror': 'https://ror.org/01fcjzv38', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I188538660', 'https://openalex.org/I4210114008']}, {'id': 'https://openalex.org/I188538660', 'display_name': 'University of Colorado Boulder', 'ror': 'https://ror.org/02ttsq026', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I188538660']}, {'id': 'https://openalex.org/I137473845', 'display_name': 'Joint Institute for Laboratory Astrophysics', 'ror': 'https://ror.org/008hybe55', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I1321296531', 'https://openalex.org/I1343035065', 'https://openalex.org/I137473845', 'https://openalex.org/I188538660']}, {'id': 'https://openalex.org/I161593684', 'display_name': 'Stockholm University', 'ror': 'https://ror.org/05f0yaq80', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I161593684']}, {'id': 'https://openalex.org/I86987016', 'display_name': 'KTH Royal Institute of Technology', 'ror': 'https://ror.org/026vcq606', 'country_code': 'SE', 'type': 'education', 'lineage': ['https://openalex.org/I86987016']}], 'countries': ['SE', 'US'], 'is_corresponding': False, 'raw_author_name': 'Axel Brandenburg', 'raw_affiliation_strings': ['Department of Astronomy, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden', 'JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80303, USA', 'Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303, USA', 'Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden'], 'affiliations': [{'raw_affiliation_string': 'Department of Astronomy, AlbaNova University Center, Stockholm University, SE-10691 Stockholm, Sweden', 'institution_ids': ['https://openalex.org/I4210135511', 'https://openalex.org/I161593684']}, {'raw_affiliation_string': 'Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303, USA', 'institution_ids': ['https://openalex.org/I4210114008', 'https://openalex.org/I188538660']}, {'raw_affiliation_string': 'JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO 80303, USA', 'institution_ids': ['https://openalex.org/I137473845', 'https://openalex.org/I188538660']}, {'raw_affiliation_string': 'Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-10691 Stockholm, Sweden', 'institution_ids': ['https://openalex.org/I86987016', 'https://openalex.org/I161593684']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5051643173', 'display_name': 'M. S. Giampapa', 'orcid': 'https://orcid.org/0000-0002-2132-5264'}, 'institutions': [{'id': 'https://openalex.org/I4210088762', 'display_name': 'National Solar Observatory', 'ror': 'https://ror.org/00b9pg524', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I4210088762']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Mark S. Giampapa', 'raw_affiliation_strings': ['National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ 85719, USA'], 'affiliations': [{'raw_affiliation_string': 'National Solar Observatory, 950 North Cherry Avenue, Tucson, AZ 85719, USA', 'institution_ids': ['https://openalex.org/I4210088762']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 7, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2400, 'currency': 'USD', 'value_usd': 2400, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 2.109, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 26, 'citation_normalized_percentile': {'value': 0.999948, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 92, 'max': 93}, 'biblio': {'volume': '855', 'issue': '2', 'first_page': 'L22', 'last_page': 'L22'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10039', 'display_name': 'Stellar, planetary, and galactic studies', '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/T10039', 'display_name': 'Stellar, planetary, and galactic studies', '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/T10477', 'display_name': 'Astrophysics and Star Formation Studies', 'score': 0.9989, '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/T10325', 'display_name': 'Astro and Planetary Science', 'score': 0.9989, '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/rossby-number', 'display_name': 'Rossby number', 'score': 0.852757}, {'id': 'https://openalex.org/keywords/rotation-period', 'display_name': 'Rotation period', 'score': 0.60017437}, {'id': 'https://openalex.org/keywords/stellar-rotation', 'display_name': 'Stellar rotation', 'score': 0.5052286}, {'id': 'https://openalex.org/keywords/solar-rotation', 'display_name': 'Solar rotation', 'score': 0.44165066}], 'concepts': [{'id': 'https://openalex.org/C155008239', 'wikidata': 'https://www.wikidata.org/wiki/Q59122', 'display_name': 'Differential rotation', 'level': 3, 'score': 0.9197284}, {'id': 'https://openalex.org/C42652486', 'wikidata': 'https://www.wikidata.org/wiki/Q676622', 'display_name': 'Rossby number', 'level': 3, 'score': 0.852757}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.76461697}, {'id': 'https://openalex.org/C68271606', 'wikidata': 'https://www.wikidata.org/wiki/Q625648', 'display_name': 'Photometry (optics)', 'level': 3, 'score': 0.68454087}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.6385584}, {'id': 'https://openalex.org/C74050887', 'wikidata': 'https://www.wikidata.org/wiki/Q848368', 'display_name': 'Rotation (mathematics)', 'level': 2, 'score': 0.60164225}, {'id': 'https://openalex.org/C9411552', 'wikidata': 'https://www.wikidata.org/wiki/Q185981', 'display_name': 'Rotation period', 'level': 3, 'score': 0.60017437}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.58311737}, {'id': 'https://openalex.org/C88991977', 'wikidata': 'https://www.wikidata.org/wiki/Q6464', 'display_name': 'Stellar rotation', 'level': 3, 'score': 0.5052286}, {'id': 'https://openalex.org/C52348108', 'wikidata': 'https://www.wikidata.org/wiki/Q11387', 'display_name': 'Open cluster', 'level': 3, 'score': 0.45784467}, {'id': 'https://openalex.org/C103962331', 'wikidata': 'https://www.wikidata.org/wiki/Q1724743', 'display_name': 'Solar rotation', 'level': 3, 'score': 0.44165066}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.4029869}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.1861667}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.15974921}, {'id': 'https://openalex.org/C153294291', 'wikidata': 'https://www.wikidata.org/wiki/Q25261', 'display_name': 'Meteorology', 'level': 1, 'score': 0.10132834}, {'id': 'https://openalex.org/C183682340', 'wikidata': 'https://www.wikidata.org/wiki/Q2043698', 'display_name': 'Solar physics', 'level': 2, 'score': 0.07252595}, {'id': 'https://openalex.org/C196558001', 'wikidata': 'https://www.wikidata.org/wiki/Q190132', 'display_name': 'Turbulence', 'level': 2, 'score': 0.0}], 'mesh': [], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.3847/2041-8213/aab20a', 'pdf_url': 'https://iopscience.iop.org/article/10.3847/2041-8213/aab20a/pdf', 'source': {'id': 'https://openalex.org/S4210175824', 'display_name': 'The Astrophysical Journal Letters', 'issn_l': '2041-8205', 'issn': ['2041-8205', '2041-8213'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320083', 'host_organization_name': 'IOP Publishing', 'host_organization_lineage': ['https://openalex.org/P4310311669', 'https://openalex.org/P4310320083'], 'host_organization_lineage_names': ['Institute of Physics', 'IOP Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'http://arxiv.org/abs/1802.08689', 'pdf_url': 'http://arxiv.org/pdf/1802.08689', 'source': {'id': 'https://openalex.org/S4306400194', 'display_name': 'arXiv (Cornell University)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I205783295', 'host_organization_name': 'Cornell University', 'host_organization_lineage': ['https://openalex.org/I205783295'], 'host_organization_lineage_names': ['Cornell University'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'submittedVersion', 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://arxiv.org/abs/1802.08689', 'pdf_url': 'https://arxiv.org/pdf/1802.08689', 'source': {'id': 'https://openalex.org/S4306400194', 'display_name': 'arXiv (Cornell University)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I205783295', 'host_organization_name': 'Cornell University', 'host_organization_lineage': ['https://openalex.org/I205783295'], 'host_organization_lineage_names': ['Cornell University'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'submittedVersion', 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://api.datacite.org/dois/10.48550/arxiv.1802.08689', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4393179698', 'display_name': 'DataCite API', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I4210145204', 'host_organization_name': 'DataCite', 'host_organization_lineage': ['https://openalex.org/I4210145204'], 'host_organization_lineage_names': ['DataCite'], 'type': 'metadata'}, 'license': None, 'license_id': None, 'version': None}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.3847/2041-8213/aab20a', 'pdf_url': 'https://iopscience.iop.org/article/10.3847/2041-8213/aab20a/pdf', 'source': {'id': 'https://openalex.org/S4210175824', 'display_name': 'The Astrophysical Journal Letters', 'issn_l': '2041-8205', 'issn': ['2041-8205', '2041-8213'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320083', 'host_organization_name': 'IOP Publishing', 'host_organization_lineage': ['https://openalex.org/P4310311669', 'https://openalex.org/P4310320083'], 'host_organization_lineage_names': ['Institute of Physics', 'IOP Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': ['https://openalex.org/W2788912394', 'https://openalex.org/W3098526749'], 'referenced_works_count': 32, 'referenced_works': ['https://openalex.org/W1988363137', 'https://openalex.org/W2000430339', 'https://openalex.org/W2010452910', 'https://openalex.org/W2024052433', 'https://openalex.org/W2033565744', 'https://openalex.org/W2040086089', 'https://openalex.org/W2041914941', 'https://openalex.org/W2044183576', 'https://openalex.org/W2048109974', 'https://openalex.org/W2052150113', 'https://openalex.org/W2052160167', 'https://openalex.org/W2070889653', 'https://openalex.org/W2086132515', 'https://openalex.org/W2142350809', 'https://openalex.org/W2227350766', 'https://openalex.org/W2563397649', 'https://openalex.org/W2743987067', 'https://openalex.org/W3098170489', 'https://openalex.org/W3100114972', 'https://openalex.org/W3101115932', 'https://openalex.org/W3101174582', 'https://openalex.org/W3101717017', 'https://openalex.org/W3101931303', 'https://openalex.org/W3102011169', 'https://openalex.org/W3102825010', 'https://openalex.org/W3103748079', 'https://openalex.org/W3103877730', 'https://openalex.org/W3103988567', 'https://openalex.org/W3104871426', 'https://openalex.org/W3105321246', 'https://openalex.org/W3106282713', 'https://openalex.org/W4293676342'], 'related_works': ['https://openalex.org/W4387746094', 'https://openalex.org/W4386908248', 'https://openalex.org/W3100984599', 'https://openalex.org/W3000219054', 'https://openalex.org/W2982445315', 'https://openalex.org/W2951516912', 'https://openalex.org/W2338721099', 'https://openalex.org/W2052160167', 'https://openalex.org/W2028854547', 'https://openalex.org/W1996592309'], 'abstract_inverted_index': {'Abstract': [0], 'High-precision': [1], 'photometry': [2], 'of': [3, 6, 32, 57, 63, 90, 103, 113, 131, 137, 178, 189], 'solar-like': [4, 122], 'members': [5, 136], 'the': [7, 30, 36, 42, 54, 58, 104, 110, 114, 135, 147, 166, 175, 186], 'open': [8], 'cluster': [9], 'M67': [10, 64], 'with': [11, 23, 69, 97, 141, 161], 'Kepler': [12], '/': [13], 'K2': [14], 'data': [15], 'has': [16, 75], 'recently': [17], 'revealed': [18], 'enhanced': [19], 'activity': [20, 56, 179], 'for': [21, 46, 95, 121, 134, 174], 'stars': [22, 62, 96], 'a': [24, 88], 'large': [25], 'Rossby': [26, 52, 71, 98], 'number,': [27], 'which': [28], 'is': [29, 156], 'ratio': [31], 'rotation': [33, 48, 93, 143, 168, 183], 'period': [34], 'to': [35, 41, 67, 85, 118, 158], 'convective': [37], 'turnover': [38], 'time.': [39], 'Contrary': [40], 'well': [43], 'established': [44], 'behavior': [45, 74], 'shorter': [47], 'periods': [49], 'and': [50, 127, 185], 'smaller': [51], 'numbers,': [53], 'chromospheric': [55], 'more': [59], 'slowly': [60], 'rotating': [61], 'was': [65, 82, 116], 'found': [66, 117, 157], 'increase': [68], 'increasing': [70], 'number.': [72], 'Such': [73], 'never': [76], 'been': [77], 'reported': [78], 'before,': [79], 'although': [80], 'it': [81], 'theoretically': [83], 'predicted': [84], 'emerge': [86], 'as': [87], 'consequence': [89], 'antisolar': [91, 190], 'differential': [92, 191], '(DR)': [94], 'numbers': [99], 'larger': [100], 'than': [101], 'that': [102, 120, 162], 'Sun,': [105], 'because': [106], 'in': [107], 'those': [108], 'models': [109], 'absolute': [111], 'value': [112], 'DR': [115], 'exceed': [119], 'DR.': [123], 'Using': [124], 'gyrochronological': [125], 'relations': [126], 'an': [128], 'approximate': [129], 'age': [130], '4': [132], 'Gyr': [133], 'M67,': [138], 'we': [139], 'compare': [140], 'computed': [142], 'rates': [144, 184], 'using': [145], 'just': [146], 'B': [148], '−': [149], 'V': [150], 'color.': [151], 'The': [152], 'resulting': [153], 'rotation–activity': [154], 'relation': [155], 'be': [159], 'compatible': [160], 'obtained': [163], 'by': [164], 'employing': [165], 'measured': [167], 'rate.': [169], 'This': [170], 'provides': [171], 'additional': [172], 'support': [173], 'unconventional': [176], 'enhancement': [177], 'at': [180], 'comparatively': [181], 'low': [182], 'possible': [187], 'presence': [188], 'rotation.': [192]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3098526749', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 5}, {'year': 2021, 'cited_by_count': 4}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 7}, {'year': 2018, 'cited_by_count': 5}], 'updated_date': '2025-01-10T05:30:42.144531', 'created_date': '2020-11-23'}