Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3000219054', 'doi': 'https://doi.org/10.1093/mnras/staa103', 'title': 'Activity and differential rotation of the early M dwarf Kepler-45 from transit mapping', 'display_name': 'Activity and differential rotation of the early M dwarf Kepler-45 from transit mapping', 'publication_year': 2020, 'publication_date': '2020-01-14', 'ids': {'openalex': 'https://openalex.org/W3000219054', 'doi': 'https://doi.org/10.1093/mnras/staa103', 'mag': '3000219054'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1093/mnras/staa103', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/492/4/5141/32368662/staa103.pdf', 'source': {'id': 'https://openalex.org/S195663288', 'display_name': 'Monthly Notices of the Royal Astronomical Society', 'issn_l': '0035-8711', 'issn': ['0035-8711', '1365-8711', '1365-2966'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310311648', 'host_organization_name': 'Oxford University Press', 'host_organization_lineage': ['https://openalex.org/P4310311647', 'https://openalex.org/P4310311648'], 'host_organization_lineage_names': ['University of Oxford', 'Oxford University Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://academic.oup.com/mnras/article-pdf/492/4/5141/32368662/staa103.pdf', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5021906370', 'display_name': 'S M Zaleski', 'orcid': 'https://orcid.org/0000-0002-7266-1540'}, 'institutions': [{'id': 'https://openalex.org/I185523456', 'display_name': 'University of Southern Queensland', 'ror': 'https://ror.org/04sjbnx57', 'country_code': 'AU', 'type': 'education', 'lineage': ['https://openalex.org/I185523456']}], 'countries': ['AU'], 'is_corresponding': True, 'raw_author_name': 'S M Zaleski', 'raw_affiliation_strings': ['Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia'], 'affiliations': [{'raw_affiliation_string': 'Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia', 'institution_ids': ['https://openalex.org/I185523456']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5061307897', 'display_name': 'Adriana Válio', 'orcid': 'https://orcid.org/0000-0002-1671-8370'}, 'institutions': [{'id': 'https://openalex.org/I18167132', 'display_name': 'Universidade Presbiteriana Mackenzie', 'ror': 'https://ror.org/006nc8n95', 'country_code': 'BR', 'type': 'education', 'lineage': ['https://openalex.org/I18167132']}], 'countries': ['BR'], 'is_corresponding': False, 'raw_author_name': 'A Valio', 'raw_affiliation_strings': ['Center for Radio Astronomy and Astrophysics, Mackenzie Presbyterian University, Rua da Consolaçao, 896, São Paulo, SP 01302-907, Brazil'], 'affiliations': [{'raw_affiliation_string': 'Center for Radio Astronomy and Astrophysics, Mackenzie Presbyterian University, Rua da Consolaçao, 896, São Paulo, SP 01302-907, Brazil', 'institution_ids': ['https://openalex.org/I18167132']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5075896708', 'display_name': 'Brad Carter', 'orcid': 'https://orcid.org/0000-0003-0035-8769'}, 'institutions': [{'id': 'https://openalex.org/I185523456', 'display_name': 'University of Southern Queensland', 'ror': 'https://ror.org/04sjbnx57', 'country_code': 'AU', 'type': 'education', 'lineage': ['https://openalex.org/I185523456']}], 'countries': ['AU'], 'is_corresponding': False, 'raw_author_name': 'B D Carter', 'raw_affiliation_strings': ['Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia'], 'affiliations': [{'raw_affiliation_string': 'Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia', 'institution_ids': ['https://openalex.org/I185523456']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5059868229', 'display_name': 'S. C. Marsden', 'orcid': 'https://orcid.org/0000-0001-5522-8887'}, 'institutions': [{'id': 'https://openalex.org/I185523456', 'display_name': 'University of Southern Queensland', 'ror': 'https://ror.org/04sjbnx57', 'country_code': 'AU', 'type': 'education', 'lineage': ['https://openalex.org/I185523456']}], 'countries': ['AU'], 'is_corresponding': False, 'raw_author_name': 'S C Marsden', 'raw_affiliation_strings': ['Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia'], 'affiliations': [{'raw_affiliation_string': 'Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia', 'institution_ids': ['https://openalex.org/I185523456']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 2, 'corresponding_author_ids': ['https://openalex.org/A5021906370'], 'corresponding_institution_ids': ['https://openalex.org/I185523456'], 'apc_list': {'value': 2310, 'currency': 'GBP', 'value_usd': 2833, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.166, 'has_fulltext': False, 'cited_by_count': 16, 'citation_normalized_percentile': {'value': 0.799189, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 90, 'max': 91}, 'biblio': {'volume': '492', 'issue': '4', 'first_page': '5141', 'last_page': '5151'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10039', 'display_name': 'Stellar, planetary, and galactic studies', 'score': 0.9999, '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': 0.9999, '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': 0.9983, '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', 'score': 0.994, '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'}}], 'keywords': [{'id': 'https://openalex.org/keywords/starspot', 'display_name': 'Starspot', 'score': 0.8591037}, {'id': 'https://openalex.org/keywords/rotation-period', 'display_name': 'Rotation period', 'score': 0.73584676}, {'id': 'https://openalex.org/keywords/stellar-rotation', 'display_name': 'Stellar rotation', 'score': 0.6829299}, {'id': 'https://openalex.org/keywords/photosphere', 'display_name': 'Photosphere', 'score': 0.5145225}], 'concepts': [{'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.9420252}, {'id': 'https://openalex.org/C155008239', 'wikidata': 'https://www.wikidata.org/wiki/Q59122', 'display_name': 'Differential rotation', 'level': 3, 'score': 0.8928746}, {'id': 'https://openalex.org/C32161561', 'wikidata': 'https://www.wikidata.org/wiki/Q1893536', 'display_name': 'Starspot', 'level': 3, 'score': 0.8591037}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.82539654}, {'id': 'https://openalex.org/C9411552', 'wikidata': 'https://www.wikidata.org/wiki/Q185981', 'display_name': 'Rotation period', 'level': 3, 'score': 0.73584676}, {'id': 'https://openalex.org/C88991977', 'wikidata': 'https://www.wikidata.org/wiki/Q6464', 'display_name': 'Stellar rotation', 'level': 3, 'score': 0.6829299}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.5972292}, {'id': 'https://openalex.org/C108884401', 'wikidata': 'https://www.wikidata.org/wiki/Q6372', 'display_name': 'Photosphere', 'level': 3, 'score': 0.5145225}, {'id': 'https://openalex.org/C74050887', 'wikidata': 'https://www.wikidata.org/wiki/Q848368', 'display_name': 'Rotation (mathematics)', 'level': 2, 'score': 0.50739306}, {'id': 'https://openalex.org/C2778022998', 'wikidata': 'https://www.wikidata.org/wiki/Q651136', 'display_name': 'Transit (satellite)', 'level': 3, 'score': 0.45137328}, {'id': 'https://openalex.org/C130726490', 'wikidata': 'https://www.wikidata.org/wiki/Q675076', 'display_name': 'Light curve', 'level': 2, 'score': 0.43202597}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.32825455}, {'id': 'https://openalex.org/C4839761', 'wikidata': 'https://www.wikidata.org/wiki/Q212111', 'display_name': 'Spectral line', 'level': 2, 'score': 0.11434379}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', 'level': 1, 'score': 0.09392789}, {'id': 'https://openalex.org/C539828613', 'wikidata': 'https://www.wikidata.org/wiki/Q178512', 'display_name': 'Public transport', 'level': 2, '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/C17744445', 'wikidata': 'https://www.wikidata.org/wiki/Q36442', 'display_name': 'Political science', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C199539241', 'wikidata': 'https://www.wikidata.org/wiki/Q7748', 'display_name': 'Law', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1093/mnras/staa103', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/492/4/5141/32368662/staa103.pdf', 'source': {'id': 'https://openalex.org/S195663288', 'display_name': 'Monthly Notices of the Royal Astronomical Society', 'issn_l': '0035-8711', 'issn': ['0035-8711', '1365-8711', '1365-2966'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310311648', 'host_organization_name': 'Oxford University Press', 'host_organization_lineage': ['https://openalex.org/P4310311647', 'https://openalex.org/P4310311648'], 'host_organization_lineage_names': ['University of Oxford', 'Oxford University Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1093/mnras/staa103', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/492/4/5141/32368662/staa103.pdf', 'source': {'id': 'https://openalex.org/S195663288', 'display_name': 'Monthly Notices of the Royal Astronomical Society', 'issn_l': '0035-8711', 'issn': ['0035-8711', '1365-8711', '1365-2966'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310311648', 'host_organization_name': 'Oxford University Press', 'host_organization_lineage': ['https://openalex.org/P4310311647', 'https://openalex.org/P4310311648'], 'host_organization_lineage_names': ['University of Oxford', 'Oxford University Press'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [], 'grants': [{'funder': 'https://openalex.org/F4320306101', 'funder_display_name': 'National Aeronautics and Space Administration', 'award_id': None}, {'funder': 'https://openalex.org/F4320320997', 'funder_display_name': 'Fundação de Amparo à Pesquisa do Estado de São Paulo', 'award_id': '2013/10559-5'}], 'datasets': [], 'versions': [], 'referenced_works_count': 108, 'referenced_works': ['https://openalex.org/W1484030292', 'https://openalex.org/W1691561741', 'https://openalex.org/W1941025790', 'https://openalex.org/W1965044779', 'https://openalex.org/W1965097857', 'https://openalex.org/W1975101526', 'https://openalex.org/W1975583263', 'https://openalex.org/W1976164719', 'https://openalex.org/W1978096983', 'https://openalex.org/W1978392525', 'https://openalex.org/W1987217978', 'https://openalex.org/W1989651686', 'https://openalex.org/W1992599695', 'https://openalex.org/W1993271579', 'https://openalex.org/W1999704713', 'https://openalex.org/W2000430339', 'https://openalex.org/W2007462516', 'https://openalex.org/W2009087182', 'https://openalex.org/W2013843356', 'https://openalex.org/W2014861690', 'https://openalex.org/W2018270005', 'https://openalex.org/W2018856414', 'https://openalex.org/W2022380144', 'https://openalex.org/W2030125280', 'https://openalex.org/W2033105613', 'https://openalex.org/W2036211162', 'https://openalex.org/W2042423063', 'https://openalex.org/W2042822028', 'https://openalex.org/W2043250362', 'https://openalex.org/W2044951551', 'https://openalex.org/W2050205724', 'https://openalex.org/W2060945344', 'https://openalex.org/W2061759127', 'https://openalex.org/W2067747459', 'https://openalex.org/W2070508637', 'https://openalex.org/W2076877985', 'https://openalex.org/W2082366856', 'https://openalex.org/W2086797799', 'https://openalex.org/W2097409226', 'https://openalex.org/W2099323970', 'https://openalex.org/W2100648216', 'https://openalex.org/W2101687185', 'https://openalex.org/W2106712774', 'https://openalex.org/W2125114796', 'https://openalex.org/W2128849345', 'https://openalex.org/W2132632814', 'https://openalex.org/W2141375123', 'https://openalex.org/W2152029324', 'https://openalex.org/W2155368841', 'https://openalex.org/W2159691951', 'https://openalex.org/W2165899584', 'https://openalex.org/W2168813270', 'https://openalex.org/W2183138478', 'https://openalex.org/W2271434205', 'https://openalex.org/W2414728943', 'https://openalex.org/W2437484925', 'https://openalex.org/W2483405344', 'https://openalex.org/W2510888232', 'https://openalex.org/W2531428803', 'https://openalex.org/W2583519140', 'https://openalex.org/W2625937215', 'https://openalex.org/W2739490056', 'https://openalex.org/W2750419447', 'https://openalex.org/W2761108382', 'https://openalex.org/W2765689372', 'https://openalex.org/W2766819726', 'https://openalex.org/W2781271447', 'https://openalex.org/W2795494928', 'https://openalex.org/W2798341770', 'https://openalex.org/W2809051758', 'https://openalex.org/W2901073140', 'https://openalex.org/W2909028345', 'https://openalex.org/W2951613940', 'https://openalex.org/W2964221331', 'https://openalex.org/W3098106959', 'https://openalex.org/W3098425383', 'https://openalex.org/W3098471461', 'https://openalex.org/W3098542408', 'https://openalex.org/W3098663077', 'https://openalex.org/W3098757443', 'https://openalex.org/W3098814944', 'https://openalex.org/W3098823902', 'https://openalex.org/W3099183504', 'https://openalex.org/W3099279536', 'https://openalex.org/W3099466089', 'https://openalex.org/W3099954907', 'https://openalex.org/W3099999463', 'https://openalex.org/W3100046495', 'https://openalex.org/W3100636956', 'https://openalex.org/W3100932553', 'https://openalex.org/W3100961363', 'https://openalex.org/W3101553934', 'https://openalex.org/W3102699054', 'https://openalex.org/W3103317064', 'https://openalex.org/W3103380709', 'https://openalex.org/W3103412296', 'https://openalex.org/W3103877730', 'https://openalex.org/W3104045940', 'https://openalex.org/W3104158146', 'https://openalex.org/W3104173999', 'https://openalex.org/W3104181194', 'https://openalex.org/W3104624048', 'https://openalex.org/W3105750265', 'https://openalex.org/W3105807626', 'https://openalex.org/W4244258850', 'https://openalex.org/W4292406685', 'https://openalex.org/W4293676657', 'https://openalex.org/W4293676705'], 'related_works': ['https://openalex.org/W4387746094', 'https://openalex.org/W4386908248', 'https://openalex.org/W4293081698', 'https://openalex.org/W3100984599', 'https://openalex.org/W3099071938', 'https://openalex.org/W3000219054', 'https://openalex.org/W2909028345', 'https://openalex.org/W2124781552', 'https://openalex.org/W2078507076', 'https://openalex.org/W2013843356'], 'abstract_inverted_index': {'ABSTRACT': [0], 'Little': [1], 'is': [2, 94, 135, 138, 214], 'known': [3], 'of': [4, 10, 26, 81, 131, 140, 169, 178, 185, 193, 204, 222, 231], 'the': [5, 21, 31, 56, 79, 82, 89, 97, 125, 175, 181], 'activity': [6, 24, 129], 'and': [7, 28, 47, 100, 107, 113, 161, 219, 237], 'differential': [8, 150, 202], 'rotation': [9, 151, 155, 167, 184, 203, 249], 'low': [11], 'luminosity,': [12], 'early': [13, 63, 224], 'M': [14, 64, 225], 'dwarfs': [15, 65, 226], 'from': [16, 38], 'direct': [17], 'observation.': [18], 'We': [19, 44], 'present': [20], 'first': [22], 'stellar': [23, 83, 183, 248], 'analysis': [25], 'star-spots': [27], 'faculae': [29, 86, 115], 'for': [30, 96, 143, 244], 'hot': [32], 'Jupiter': [33], 'hosting': [34], 'M1V': [35], 'dwarf': [36], 'Kepler-45': [37], '$\\it': [39], 'Kepler$': [40], 'transit': [41, 176], 'light': [42], 'curves.': [43], 'find': [45], 'star-spot': [46, 160], 'facula': [48, 101, 162], 'temperatures': [49], 'contrasting': [50], 'a': [51, 67, 71, 117, 148, 166, 190, 200, 229], 'few': [52], 'hundred': [53], 'degrees': [54], 'with': [55, 85, 217, 246], 'quiet': [57], 'photosphere,': [58], 'hence': [59], 'similar': [60, 91, 247], 'to': [61, 78, 92], 'other': [62, 144, 223], 'having': [66], 'convective': [68], 'envelope': [69], 'surrounding': [70], 'radiative': [72], 'core.': [73], 'Star-spots': [74], 'are': [75, 104], 'prominent': [76, 87], 'close': [77], 'centre': [80], 'disc,': [84], 'towards': [88], 'limbs,': [90], 'what': [93], 'observed': [95, 136], 'Sun.': [98], 'Star-spot': [99], 'mean': [102, 182], 'sizes': [103], 'about': [105, 132], '40': [106], '45': [108], '×': [109], '103': [110], 'km,': [111], 'respectively,': [112], 'thus': [114, 215], 'occupy': [116], '10': [118], 'per': [119, 208], 'cent': [120], 'larger': [121], 'surface': [122, 211], 'area': [123], 'than': [124, 156, 233, 240], 'star-spots.': [126], 'A': [127], 'short-term': [128], 'cycle': [130], '295': [133], 'd': [134, 173], 'that': [137, 227], 'reminiscent': [139], 'those': [141], 'seen': [142], 'cool': [145], 'dwarfs.': [146], 'Adopting': [147], 'solar-type': [149], 'profile': [152], '(faster': [153], 'equatorial': [154], 'polar': [157], 'rotation),': [158], 'our': [159], 'temporal': [163], 'mapping': [164], 'indicates': [165], 'period': [168], '15.520': [170], '±': [171, 195, 206], '0.025': [172], 'at': [174], 'latitude': [177], '−33.2°.': [179], 'From': [180], '15.762': [186], 'd,': [187], 'we': [188], 'estimate': [189], 'rotational': [191, 212], 'shear': [192, 213, 230], '0.031': [194], '0.004': [196], 'rad': [197, 235, 242], 'd−1,': [198], 'or': [199], 'relative': [201], '7.8': [205], '0.9': [207], 'cent.': [209], 'Kepler-45’s': [210], 'consistent': [216], 'observations': [218], 'theoretical': [220], 'modelling': [221], 'indicate': [228], 'less': [232, 239], '0.045': [234], 'd−1': [236, 243], 'no': [238], '0.03': [241], 'stars': [245], 'periods.': [250]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3000219054', 'counts_by_year': [{'year': 2024, 'cited_by_count': 4}, {'year': 2023, 'cited_by_count': 6}, {'year': 2022, 'cited_by_count': 3}, {'year': 2021, 'cited_by_count': 3}], 'updated_date': '2025-01-06T21:55:22.480437', 'created_date': '2020-01-23'}