Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1967899494', 'doi': 'https://doi.org/10.1093/mnras/280.1.77', 'title': 'Spectral analysis of M dwarfs', 'display_name': 'Spectral analysis of M dwarfs', 'publication_year': 1996, 'publication_date': '1996-05-01', 'ids': {'openalex': 'https://openalex.org/W1967899494', 'doi': 'https://doi.org/10.1093/mnras/280.1.77', 'mag': '1967899494'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1093/mnras/280.1.77', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/280/1/77/3036164/280-1-77.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/280/1/77/3036164/280-1-77.pdf', 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5050496687', 'display_name': 'H. R. A. Jones', 'orcid': 'https://orcid.org/0000-0003-0433-3665'}, 'institutions': [{'id': 'https://openalex.org/I49611733', 'display_name': 'UK Astronomy Technology Centre', 'ror': 'https://ror.org/01egwg173', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I162524378', 'https://openalex.org/I4210087105', 'https://openalex.org/I4210105583', 'https://openalex.org/I49611733']}, {'id': 'https://openalex.org/I98677209', 'display_name': 'University of Edinburgh', 'ror': 'https://ror.org/01nrxwf90', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I98677209']}, {'id': 'https://openalex.org/I63098007', 'display_name': 'Liverpool John Moores University', 'ror': 'https://ror.org/04zfme737', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I63098007']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'H. R. A. Jones', 'raw_affiliation_strings': ['Astrophysics Group, Liverpool John Moores University, Liverpool L3 3AF', 'Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ'], 'affiliations': [{'raw_affiliation_string': 'Institute for Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ', 'institution_ids': ['https://openalex.org/I49611733', 'https://openalex.org/I98677209']}, {'raw_affiliation_string': 'Astrophysics Group, Liverpool John Moores University, Liverpool L3 3AF', 'institution_ids': ['https://openalex.org/I63098007']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5057916544', 'display_name': 'A. J. Longmore', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210105583', 'display_name': 'Royal Observatory', 'ror': 'https://ror.org/016kj2436', 'country_code': 'GB', 'type': 'facility', 'lineage': ['https://openalex.org/I4210105583']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'A. J. Longmore', 'raw_affiliation_strings': ['Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ'], 'affiliations': [{'raw_affiliation_string': 'Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ', 'institution_ids': ['https://openalex.org/I4210105583']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5027068088', 'display_name': 'F. Allard', 'orcid': 'https://orcid.org/0000-0003-1929-9340'}, 'institutions': [{'id': 'https://openalex.org/I39587148', 'display_name': 'Wichita State University', 'ror': 'https://ror.org/00c4e7y75', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I39587148']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'F. Allard', 'raw_affiliation_strings': ['Department of Physics, Wichita State University, Wichita, KS 67260-0032, USA'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, Wichita State University, Wichita, KS 67260-0032, USA', 'institution_ids': ['https://openalex.org/I39587148']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5108582177', 'display_name': 'P. H. Hauschildt', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I55732556', 'display_name': 'Arizona State University', 'ror': 'https://ror.org/03efmqc40', 'country_code': 'US', 'type': 'education', 'lineage': ['https://openalex.org/I55732556']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'P. H. Hauschildt', 'raw_affiliation_strings': ['Department of Physics and Astronomy, Arizona State University, Box 871504, Tempe, AZ 85287-1504, USA'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics and Astronomy, Arizona State University, Box 871504, Tempe, AZ 85287-1504, USA', 'institution_ids': ['https://openalex.org/I55732556']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 6, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2310, 'currency': 'GBP', 'value_usd': 2833, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 3.626, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 77, 'citation_normalized_percentile': {'value': 0.932021, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 94, 'max': 95}, 'biblio': {'volume': '280', 'issue': '1', 'first_page': '77', 'last_page': '94'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10039', 'display_name': 'Stellar, planetary, and galactic 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'}}, 'topics': [{'id': 'https://openalex.org/T10039', 'display_name': 'Stellar, planetary, and galactic 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/T11111', 'display_name': 'Spectroscopy and Laser Applications', 'score': 0.9701, 'subfield': {'id': 'https://openalex.org/subfields/1607', 'display_name': 'Spectroscopy'}, 'field': {'id': 'https://openalex.org/fields/16', 'display_name': 'Chemistry'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T12917', 'display_name': 'Astronomy and Astrophysical Research', 'score': 0.9343, '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/surface-gravity', 'display_name': 'Surface gravity', 'score': 0.6870924}, {'id': 'https://openalex.org/keywords/effective-temperature', 'display_name': 'Effective temperature', 'score': 0.5275383}], 'concepts': [{'id': 'https://openalex.org/C99465377', 'wikidata': 'https://www.wikidata.org/wiki/Q217030', 'display_name': 'Metallicity', 'level': 3, 'score': 0.92786336}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.9093836}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.81452775}, {'id': 'https://openalex.org/C4839761', 'wikidata': 'https://www.wikidata.org/wiki/Q212111', 'display_name': 'Spectral line', 'level': 2, 'score': 0.7479737}, {'id': 'https://openalex.org/C151130387', 'wikidata': 'https://www.wikidata.org/wiki/Q1758384', 'display_name': 'Surface gravity', 'level': 3, 'score': 0.6870924}, {'id': 'https://openalex.org/C13565188', 'wikidata': 'https://www.wikidata.org/wiki/Q854050', 'display_name': 'Effective temperature', 'level': 3, 'score': 0.5275383}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.44982332}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.26022935}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1093/mnras/280.1.77', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/280/1/77/3036164/280-1-77.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/280.1.77', 'pdf_url': 'https://academic.oup.com/mnras/article-pdf/280/1/77/3036164/280-1-77.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': [{'display_name': 'Peace, justice, and strong institutions', 'id': 'https://metadata.un.org/sdg/16', 'score': 0.7}, {'display_name': 'Reduced inequalities', 'id': 'https://metadata.un.org/sdg/10', 'score': 0.4}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W54371995', 'https://openalex.org/W4366400521', 'https://openalex.org/W2954313615', 'https://openalex.org/W2887083098', 'https://openalex.org/W2188665726', 'https://openalex.org/W2093344354', 'https://openalex.org/W2070739875', 'https://openalex.org/W2021258781', 'https://openalex.org/W1839968002', 'https://openalex.org/W1480732047'], 'abstract_inverted_index': {'We': [0], 'compare': [1], '1.16–1.22': [2], 'μm': [3], 'spectra': [4, 11, 20, 48, 90, 258], 'of': [5, 24, 45, 55, 70, 88, 133, 192, 232, 244, 247, 273], 'cool': [6, 38], 'low-mass': [7, 39], 'dwarfs': [8], 'with': [9, 13, 37, 85, 110, 142, 256, 269], 'synthetic': [10, 19, 89, 257], 'calculated': [12], 'a': [14, 22, 86, 150, 208, 215, 233, 241, 288], 'stellar': [15], 'atmosphere': [16], 'code.': [17], 'The': [18, 61, 101, 212], 'give': [21], 'representation': [23], 'the': [25, 43, 46, 53, 72, 94, 117, 120, 127, 130, 156, 168, 177, 186, 189, 248, 279], 'overall': [26], 'spectral': [27, 63], 'features': [28, 69, 148], 'which': [29, 71], 'has': [30], 'not': [31], 'been': [32], 'possible': [33], 'in': [34, 67, 218, 253], 'previous': [35, 114], 'comparisons': [36, 213], 'dwarf': [40], 'spectra,': [41], 'although': [42, 223], 'interpretation': [44], 'observed': [47, 62, 81, 249], 'is': [49, 65, 83, 262, 284], 'severely': [50], 'hampered': [51], 'by': [52], 'quality': [54], 'atomic': [56], 'and': [57, 78, 105, 145, 158, 161, 172, 183, 198], 'molecular': [58], 'input': [59], 'data.': [60], 'region': [64], 'rich': [66], 'absorption': [68, 174], 'strongest': [73], 'are': [74, 108, 164, 176], 'K,': [75], 'Fe,': [76], 'Mg': [77, 171], 'FeH.': [79, 159], 'Each': [80], 'spectrum': [82], 'compared': [84, 109], 'grid': [87], 'extending': [91], 'well': [92], 'outside': [93], 'expected': [95], 'parameter': [96], 'space': [97], 'for': [98, 126, 224], 'M': [99], 'dwarfs.': [100], 'effective': [102], 'temperatures,': [103], 'metallicities': [104, 219], 'gravities': [106], 'derived': [107], 'expectations': [111], 'based': [112], 'on': [113, 196, 238], 'work.': [115], 'For': [116, 167, 185], 'cooler': [118, 187], 'objects': [119, 129, 188], 'parameters': [121], 'show': [122, 149], 'broad': [123], 'agreement;': [124], 'however,': [125], 'hotter': [128, 169], 'poor': [131], 'fit': [132], 'Fe': [134, 173], 'lines': [135, 175, 252], 'leads': [136], 'to': [137, 140, 153, 203, 207, 220, 286], 'best': [138, 280], 'fits': [139], 'models': [141], 'low': [143], 'gravity': [144, 162, 182, 199], 'metallicity.': [146, 184, 245], 'All': [147], 'strong': [151, 250], 'sensitivity': [152], 'temperature,': [154], 'especially': [155], 'K': [157, 251], 'Metallicity': [160], 'effects': [163, 205], 'relatively': [165, 263], 'smaller.': [166], 'stars,': [170], 'most': [178], 'useful': [179], 'discriminators': [180], 'between': [181], 'complicated': [190], 'dependence': [191], 'modelled': [193], 'equivalent': [194], 'widths': [195], 'metallicity': [197], 'makes': [200], 'it': [201, 261, 283], 'awkward': [202], 'separate': [204], 'due': [206], 'single': [209], 'model': [210], 'parameter.': [211], 'suggest': [214], 'similar': [216], 'spread': [217], 'that': [221, 260, 277], 'anticipated,': [222], 'our': [225], 'sample': [226], 'neither': [227], 'kinematic': [228], 'motion': [229], 'nor': [230], 'membership': [231], 'particular': [234], 'photometric': [235], 'class': [236], 'is,': [237], 'its': [239, 274], 'own,': [240], 'reliable': [242], 'indicator': [243], 'Comparison': [246], 'GD': [254], '165B': [255], 'indicate': [259], 'metal': [264], 'rich.': [265], 'This': [266], 'result': [267], 'together': [268], 'an': [270], 'improved': [271], 'measurement': [272], 'distance': [275], 'means': [276], 'within': [278], 'available': [281], 'constraints': [282], 'likely': [285], 'be': [287], 'brown': [289], 'dwarf.': [290]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1967899494', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 3}, {'year': 2015, 'cited_by_count': 4}, {'year': 2014, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-12-12T21:15:24.807840', 'created_date': '2016-06-24'}