Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W3099474433', 'doi': 'https://doi.org/10.1088/2041-8205/759/1/l16', 'title': 'THE LOW-MASS, HIGHLY ACCRETING BLACK HOLE ASSOCIATED WITH THE ACTIVE GALACTIC NUCLEUS 2XMM J123103.2+110648', 'display_name': 'THE LOW-MASS, HIGHLY ACCRETING BLACK HOLE ASSOCIATED WITH THE ACTIVE GALACTIC NUCLEUS 2XMM J123103.2+110648', 'publication_year': 2012, 'publication_date': '2012-10-15', 'ids': {'openalex': 'https://openalex.org/W3099474433', 'doi': 'https://doi.org/10.1088/2041-8205/759/1/l16', 'mag': '3099474433'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1088/2041-8205/759/1/l16', 'pdf_url': 'https://iopscience.iop.org/article/10.1088/2041-8205/759/1/L16/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/10.1088/2041-8205/759/1/L16/pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5054184482', 'display_name': 'Luis C. Ho', 'orcid': 'https://orcid.org/0000-0001-6947-5846'}, 'institutions': [{'id': 'https://openalex.org/I4210124388', 'display_name': 'Carnegie Observatories', 'ror': 'https://ror.org/03h4zjr91', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I196817621', 'https://openalex.org/I4210124388']}, {'id': 'https://openalex.org/I196817621', 'display_name': 'Carnegie Institution for Science', 'ror': 'https://ror.org/04jr01610', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I196817621']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Luis C. Ho', 'raw_affiliation_strings': ['The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA'], 'affiliations': [{'raw_affiliation_string': 'The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA', 'institution_ids': ['https://openalex.org/I4210124388', 'https://openalex.org/I196817621']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5046730991', 'display_name': 'Minjin Kim', 'orcid': 'https://orcid.org/0000-0002-3560-0781'}, 'institutions': [{'id': 'https://openalex.org/I4210124388', 'display_name': 'Carnegie Observatories', 'ror': 'https://ror.org/03h4zjr91', 'country_code': 'US', 'type': 'facility', 'lineage': ['https://openalex.org/I196817621', 'https://openalex.org/I4210124388']}, {'id': 'https://openalex.org/I196817621', 'display_name': 'Carnegie Institution for Science', 'ror': 'https://ror.org/04jr01610', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I196817621']}, {'id': 'https://openalex.org/I2800676788', 'display_name': 'Korea Astronomy and Space Science Institute', 'ror': 'https://ror.org/04g2pxh42', 'country_code': 'KR', 'type': 'facility', 'lineage': ['https://openalex.org/I2800676788']}], 'countries': ['KR', 'US'], 'is_corresponding': False, 'raw_author_name': 'Minjin Kim', 'raw_affiliation_strings': ['Korea Astronomy and Space Science Institute, Daejeon 305-348, Republic of Korea', 'The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA'], 'affiliations': [{'raw_affiliation_string': 'The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA', 'institution_ids': ['https://openalex.org/I4210124388', 'https://openalex.org/I196817621']}, {'raw_affiliation_string': 'Korea Astronomy and Space Science Institute, Daejeon 305-348, Republic of Korea', 'institution_ids': ['https://openalex.org/I2800676788']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5088633109', 'display_name': 'Yuichi Terashima', 'orcid': 'https://orcid.org/0000-0003-1780-5481'}, 'institutions': [{'id': 'https://openalex.org/I43545212', 'display_name': 'Ehime University', 'ror': 'https://ror.org/017hkng22', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I43545212']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Yuichi Terashima', 'raw_affiliation_strings': ['Department of Physics, Ehime University, Matsuyama, Ehime 790-8577, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, Ehime University, Matsuyama, Ehime 790-8577, Japan', 'institution_ids': ['https://openalex.org/I43545212']}]}], 'institution_assertions': [], 'countries_distinct_count': 3, 'institutions_distinct_count': 4, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2400, 'currency': 'USD', 'value_usd': 2400, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.827, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 37, 'citation_normalized_percentile': {'value': 0.934109, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 94, 'max': 95}, 'biblio': {'volume': '759', 'issue': '1', 'first_page': 'L16', 'last_page': 'L16'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10744', 'display_name': 'Astrophysical Studies of Black Holes', 'score': 0.9993, '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/T10744', 'display_name': 'Astrophysical Studies of Black Holes', 'score': 0.9993, '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/T10026', 'display_name': 'Galaxy Formation and Evolution in the Universe', 'score': 0.9881, '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/virial-mass', 'display_name': 'Virial mass', 'score': 0.706025}, {'id': 'https://openalex.org/keywords/doubly-ionized-oxygen', 'display_name': 'Doubly ionized oxygen', 'score': 0.7048677}, {'id': 'https://openalex.org/keywords/black-hole', 'display_name': 'Black hole (networking)', 'score': 0.64583045}, {'id': 'https://openalex.org/keywords/velocity-dispersion', 'display_name': 'Velocity dispersion', 'score': 0.57937765}, {'id': 'https://openalex.org/keywords/line', 'display_name': 'Line (geometry)', 'score': 0.53027976}, {'id': 'https://openalex.org/keywords/black-holes', 'display_name': 'Black Holes', 'score': 0.459149}], 'concepts': [{'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.9320302}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.8833972}, {'id': 'https://openalex.org/C43481613', 'wikidata': 'https://www.wikidata.org/wiki/Q46587', 'display_name': 'Active galactic nucleus', 'level': 3, 'score': 0.79889023}, {'id': 'https://openalex.org/C98444146', 'wikidata': 'https://www.wikidata.org/wiki/Q318', 'display_name': 'Galaxy', 'level': 2, 'score': 0.74136966}, {'id': 'https://openalex.org/C202607331', 'wikidata': 'https://www.wikidata.org/wiki/Q7934789', 'display_name': 'Virial mass', 'level': 4, 'score': 0.706025}, {'id': 'https://openalex.org/C26141928', 'wikidata': 'https://www.wikidata.org/wiki/Q2030382', 'display_name': 'Doubly ionized oxygen', 'level': 4, 'score': 0.7048677}, {'id': 'https://openalex.org/C50341732', 'wikidata': 'https://www.wikidata.org/wiki/Q880302', 'display_name': 'Black hole (networking)', 'level': 5, 'score': 0.64583045}, {'id': 'https://openalex.org/C12287442', 'wikidata': 'https://www.wikidata.org/wiki/Q105902', 'display_name': 'Luminosity', 'level': 3, 'score': 0.62416804}, {'id': 'https://openalex.org/C127529279', 'wikidata': 'https://www.wikidata.org/wiki/Q637450', 'display_name': 'Velocity dispersion', 'level': 3, 'score': 0.57937765}, {'id': 'https://openalex.org/C189549420', 'wikidata': 'https://www.wikidata.org/wiki/Q620602', 'display_name': 'Virial theorem', 'level': 3, 'score': 0.5328088}, {'id': 'https://openalex.org/C198352243', 'wikidata': 'https://www.wikidata.org/wiki/Q37105', 'display_name': 'Line (geometry)', 'level': 2, 'score': 0.53027976}, {'id': 'https://openalex.org/C33024259', 'wikidata': 'https://www.wikidata.org/wiki/Q76250', 'display_name': 'Redshift', 'level': 3, 'score': 0.52709234}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.4948129}, {'id': 'https://openalex.org/C96141758', 'wikidata': 'https://www.wikidata.org/wiki/Q216817', 'display_name': 'Emission spectrum', 'level': 3, 'score': 0.46341747}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.4406681}, {'id': 'https://openalex.org/C4839761', 'wikidata': 'https://www.wikidata.org/wiki/Q212111', 'display_name': 'Spectral line', 'level': 2, 'score': 0.39931288}, {'id': 'https://openalex.org/C31258907', 'wikidata': 'https://www.wikidata.org/wiki/Q1301371', 'display_name': 'Computer network', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C104954878', 'wikidata': 'https://www.wikidata.org/wiki/Q1648707', 'display_name': 'Routing protocol', 'level': 3, 'score': 0.0}, {'id': 'https://openalex.org/C74172769', 'wikidata': 'https://www.wikidata.org/wiki/Q1446839', 'display_name': 'Routing (electronic design automation)', 'level': 2, 'score': 0.0}, {'id': 'https://openalex.org/C2524010', 'wikidata': 'https://www.wikidata.org/wiki/Q8087', 'display_name': 'Geometry', '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/C89305328', 'wikidata': 'https://www.wikidata.org/wiki/Q1755411', 'display_name': 'Link-state routing protocol', 'level': 4, 'score': 0.0}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1088/2041-8205/759/1/l16', 'pdf_url': 'https://iopscience.iop.org/article/10.1088/2041-8205/759/1/L16/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/1210.0440', 'pdf_url': 'http://arxiv.org/pdf/1210.0440', '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/1210.0440', 'pdf_url': 'https://arxiv.org/pdf/1210.0440', '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.1210.0440', '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/10.1088/2041-8205/759/1/l16', 'pdf_url': 'https://iopscience.iop.org/article/10.1088/2041-8205/759/1/L16/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/W1973989795', 'https://openalex.org/W3099474433'], 'referenced_works_count': 51, 'referenced_works': ['https://openalex.org/W1678900085', 'https://openalex.org/W1796953235', 'https://openalex.org/W1863638710', 'https://openalex.org/W1967876247', 'https://openalex.org/W1968017165', 'https://openalex.org/W1980547824', 'https://openalex.org/W1981571595', 'https://openalex.org/W1986110531', 'https://openalex.org/W1992637259', 'https://openalex.org/W1993785188', 'https://openalex.org/W1994702306', 'https://openalex.org/W2011224106', 'https://openalex.org/W2011808633', 'https://openalex.org/W2013886059', 'https://openalex.org/W2025803926', 'https://openalex.org/W2027782706', 'https://openalex.org/W2029343094', 'https://openalex.org/W2033098767', 'https://openalex.org/W2033803356', 'https://openalex.org/W2033831487', 'https://openalex.org/W2033977779', 'https://openalex.org/W2034247311', 'https://openalex.org/W2037604001', 'https://openalex.org/W2043258139', 'https://openalex.org/W2047441367', 'https://openalex.org/W2048116537', 'https://openalex.org/W2057181130', 'https://openalex.org/W2068928940', 'https://openalex.org/W2074743153', 'https://openalex.org/W2087532754', 'https://openalex.org/W2088010982', 'https://openalex.org/W2090236411', 'https://openalex.org/W2092916207', 'https://openalex.org/W2121176513', 'https://openalex.org/W2124199755', 'https://openalex.org/W2124219338', 'https://openalex.org/W2124999166', 'https://openalex.org/W2148991125', 'https://openalex.org/W2154191659', 'https://openalex.org/W2163212281', 'https://openalex.org/W2167635287', 'https://openalex.org/W3098090173', 'https://openalex.org/W3099755326', 'https://openalex.org/W3101719363', 'https://openalex.org/W3102459967', 'https://openalex.org/W3104424156', 'https://openalex.org/W3104728249', 'https://openalex.org/W3104941786', 'https://openalex.org/W3105772570', 'https://openalex.org/W3124191121', 'https://openalex.org/W4300743187'], 'related_works': ['https://openalex.org/W76761808', 'https://openalex.org/W4286632987', 'https://openalex.org/W4250165122', 'https://openalex.org/W2019454572', 'https://openalex.org/W2000790004', 'https://openalex.org/W1972293237', 'https://openalex.org/W1933801865', 'https://openalex.org/W1670296439', 'https://openalex.org/W1656164459', 'https://openalex.org/W1553850656'], 'abstract_inverted_index': {'Optical': [0], 'spectra': [1], 'and': [2, 74, 83], 'images': [3], 'taken': [4], 'with': [5, 21, 29, 124, 152], 'the': [6, 71, 84, 90, 112, 125, 129, 139, 143, 156, 160], 'Baade': [7], '6.5': [8], 'm': [9], 'Magellan': [10], 'telescope': [11], 'confirm': [12], 'that': [13, 58, 106], '2XMM': [14], 'J123103.2+110648,': [15], 'a': [16, 30, 37, 62, 117, 131], 'highly': [17], 'variable': [18], 'X-ray': [19, 54, 157], 'source': [20, 56], 'an': [22, 52], 'unusually': [23], 'soft': [24], 'spectrum,': [25], 'is': [26, 122], 'indeed': [27], 'associated': [28], 'type': [31], '2': [32], '(narrow-line)': [33], 'active': [34, 69], 'nucleus': [35], 'at': [36], 'redshift': [38], 'of': [39, 45, 95, 128, 142, 159], 'z': [40], '=': [41, 97], '0.11871.': [42], 'The': [43], 'absence': [44], 'broad': [46], 'Hα': [47], 'or': [48], 'Hβ': [49], 'emission': [50], 'in': [51, 67, 76, 79, 149], 'otherwise': [53], 'unabsorbed': [55], 'suggests': [57], 'it': [59], 'intrinsically': [60], 'lacks': [61], 'broad-line': [63], 'region.': [64], 'If,': [65], 'as': [66], 'other': [68], 'galaxies,': [70], 'ionized': [72], 'gas': [73], 'stars': [75], 'J1231+1106': [77], 'are': [78], 'approximate': [80], 'virial': [81], 'equilibrium,': [82], 'MBH': [85, 107], '−': [86], 'σ*': [87], 'relation': [88], 'holds,': [89], 'exceptionally': [91], 'small': [92], 'velocity': [93], 'dispersion': [94], 'σ': [96], '33.5': [98], 'km': [99], 's−1': [100], 'for': [101], '[O': [102], 'iii]': [103], 'λ5007': [104], 'implies': [105], '≈': [108], '105': [109], 'M☉,': [110], 'among': [111], 'lowest': [113], 'ever': [114], 'detected.': [115], 'Such': [116], 'low': [118], 'black': [119, 144], 'hole': [120, 145], 'mass': [121], 'consistent': [123], 'general': [126], 'characteristics': [127], 'host,': [130], 'small,': [132], 'low-luminosity,': [133], 'low-mass': [134], 'disk': [135], 'galaxy.': [136], 'We': [137], 'estimate': [138], 'Eddington': [140], 'ratio': [141], 'to': [146], 'be': [147], '≳0.5,': [148], 'good': [150], 'agreement': [151], 'expectations': [153], 'based': [154], 'on': [155], 'properties': [158], 'source.': [161]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3099474433', 'counts_by_year': [{'year': 2024, 'cited_by_count': 1}, {'year': 2023, 'cited_by_count': 3}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 5}, {'year': 2017, 'cited_by_count': 3}, {'year': 2016, 'cited_by_count': 7}, {'year': 2015, 'cited_by_count': 2}, {'year': 2014, 'cited_by_count': 2}, {'year': 2013, 'cited_by_count': 7}], 'updated_date': '2024-09-19T11:05:48.958718', 'created_date': '2020-11-23'}