Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W4283523277', 'doi': 'https://doi.org/10.1093/pasj/psac042', 'title': 'Exploring the cosmic dawn and epoch of reionization with the 21 cm line', 'display_name': 'Exploring the cosmic dawn and epoch of reionization with the 21 cm line', 'publication_year': 2022, 'publication_date': '2022-06-25', 'ids': {'openalex': 'https://openalex.org/W4283523277', 'doi': 'https://doi.org/10.1093/pasj/psac042'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1093/pasj/psac042', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S12390406', 'display_name': 'Publications of the Astronomical Society of Japan', 'issn_l': '0004-6264', 'issn': ['0004-6264', '2053-051X'], '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': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['arxiv', 'crossref', 'datacite'], 'open_access': {'is_oa': True, 'oa_status': 'green', 'oa_url': 'https://arxiv.org/pdf/2303.07594', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5091076908', 'display_name': 'Hayato Shimabukuro', 'orcid': 'https://orcid.org/0000-0003-4850-0656'}, 'institutions': [{'id': 'https://openalex.org/I189210763', 'display_name': 'Yunnan University', 'ror': 'https://ror.org/0040axw97', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I189210763']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Hayato Shimabukuro', 'raw_affiliation_strings': ['Yunnan University , SWIFAR, No. 2 North Green Lake Road, Kunming, Yunnan Province 650500, China'], 'affiliations': [{'raw_affiliation_string': 'Yunnan University , SWIFAR, No. 2 North Green Lake Road, Kunming, Yunnan Province 650500, China', 'institution_ids': ['https://openalex.org/I189210763']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5065018350', 'display_name': 'Kenji Hasegawa', 'orcid': 'https://orcid.org/0000-0001-9940-5363'}, 'institutions': [{'id': 'https://openalex.org/I60134161', 'display_name': 'Nagoya University', 'ror': 'https://ror.org/04chrp450', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I60134161']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Kenji Hasegawa', 'raw_affiliation_strings': ['Department of Physics and Astrophysics, Nagoya University Furo-cho , Chikusa-ku, Nagoya, Aichi 464-8602, Japan'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics and Astrophysics, Nagoya University Furo-cho , Chikusa-ku, Nagoya, Aichi 464-8602, Japan', 'institution_ids': ['https://openalex.org/I60134161']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5006823427', 'display_name': 'Akira Kuchinomachi', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I96036126', 'display_name': 'Kumamoto University', 'ror': 'https://ror.org/02cgss904', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I96036126']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Akira Kuchinomachi', 'raw_affiliation_strings': ['Kumamoto University, Faculty of Advanced Science and Technology , Kumamoto, Kumamoto 860-8555, Japan'], 'affiliations': [{'raw_affiliation_string': 'Kumamoto University, Faculty of Advanced Science and Technology , Kumamoto, Kumamoto 860-8555, Japan', 'institution_ids': ['https://openalex.org/I96036126']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5023965756', 'display_name': 'Hidenobu Yajima', 'orcid': 'https://orcid.org/0000-0002-1319-3433'}, 'institutions': [{'id': 'https://openalex.org/I146399215', 'display_name': 'University of Tsukuba', 'ror': 'https://ror.org/02956yf07', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I146399215']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Hidenobu Yajima', 'raw_affiliation_strings': ['Center for Computational Sciences, University of Tsukuba , 1-1-1 Ten-nodai, Tsukuba, Ibaraki 305-8577, Japan'], 'affiliations': [{'raw_affiliation_string': 'Center for Computational Sciences, University of Tsukuba , 1-1-1 Ten-nodai, Tsukuba, Ibaraki 305-8577, Japan', 'institution_ids': ['https://openalex.org/I146399215']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5077855413', 'display_name': 'Shintaro Yoshiura', 'orcid': 'https://orcid.org/0000-0003-0581-5973'}, 'institutions': [{'id': 'https://openalex.org/I4210159940', 'display_name': 'National Astronomical Observatory of Japan', 'ror': 'https://ror.org/052rrw050', 'country_code': 'JP', 'type': 'facility', 'lineage': ['https://openalex.org/I1319490839', 'https://openalex.org/I199525922', 'https://openalex.org/I4210159940']}, {'id': 'https://openalex.org/I165779595', 'display_name': 'University of Melbourne', 'ror': 'https://ror.org/01ej9dk98', 'country_code': 'AU', 'type': 'education', 'lineage': ['https://openalex.org/I165779595']}], 'countries': ['AU', 'JP'], 'is_corresponding': False, 'raw_author_name': 'Shintaro Yoshiura', 'raw_affiliation_strings': ['Mizusawa VLBI Observatory, National Astronomical Observatory Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan', 'The University of Melbourne, School of Physics , Parkville, VIC 3010, Australia'], 'affiliations': [{'raw_affiliation_string': 'Mizusawa VLBI Observatory, National Astronomical Observatory Japan , 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan', 'institution_ids': ['https://openalex.org/I4210159940']}, {'raw_affiliation_string': 'The University of Melbourne, School of Physics , Parkville, VIC 3010, Australia', 'institution_ids': ['https://openalex.org/I165779595']}]}], 'institution_assertions': [], 'countries_distinct_count': 3, 'institutions_distinct_count': 6, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 328343, 'currency': 'JPY', 'value_usd': 2474, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 0.308, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 4, 'citation_normalized_percentile': {'value': 0.612643, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 81, 'max': 84}, 'biblio': {'volume': '75', 'issue': 'Supplement_1', 'first_page': 'S1', 'last_page': 'S32'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12450', 'display_name': 'Radio Astronomy Techniques and Instruments', '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/T12450', 'display_name': 'Radio Astronomy Techniques and Instruments', '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/T10818', 'display_name': 'High-Energy Astrophysics and Particle Acceleration Studies', 'score': 0.9972, 'subfield': {'id': 'https://openalex.org/subfields/3106', 'display_name': 'Nuclear and High Energy Physics'}, '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/T13121', 'display_name': 'Radar Wave Propagation and Refractivity Estimation', 'score': 0.9628, 'subfield': {'id': 'https://openalex.org/subfields/2202', 'display_name': 'Aerospace Engineering'}, 'field': {'id': 'https://openalex.org/fields/22', 'display_name': 'Engineering'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/dark-ages', 'display_name': 'Dark Ages', 'score': 0.74581605}, {'id': 'https://openalex.org/keywords/epoch-of-reionization', 'display_name': 'Epoch of Reionization', 'score': 0.551694}, {'id': 'https://openalex.org/keywords/21-cm-signal', 'display_name': '21 cm Signal', 'score': 0.541876}, {'id': 'https://openalex.org/keywords/hydrogen-line', 'display_name': 'Hydrogen line', 'score': 0.521648}, {'id': 'https://openalex.org/keywords/cosmic-dawn', 'display_name': 'Cosmic Dawn', 'score': 0.512013}, {'id': 'https://openalex.org/keywords/line', 'display_name': 'Line (geometry)', 'score': 0.4361079}], 'concepts': [{'id': 'https://openalex.org/C69672822', 'wikidata': 'https://www.wikidata.org/wiki/Q1670901', 'display_name': 'Reionization', 'level': 4, 'score': 0.9852809}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.8428436}, {'id': 'https://openalex.org/C2779337418', 'wikidata': 'https://www.wikidata.org/wiki/Q217192', 'display_name': 'Dark Ages', 'level': 5, 'score': 0.74581605}, {'id': 'https://openalex.org/C59375849', 'wikidata': 'https://www.wikidata.org/wiki/Q5013513', 'display_name': 'COSMIC cancer database', 'level': 2, 'score': 0.68511784}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.6363851}, {'id': 'https://openalex.org/C98444146', 'wikidata': 'https://www.wikidata.org/wiki/Q318', 'display_name': 'Galaxy', 'level': 2, 'score': 0.63353384}, {'id': 'https://openalex.org/C84999194', 'wikidata': 'https://www.wikidata.org/wiki/Q1', 'display_name': 'Universe', 'level': 2, 'score': 0.58743423}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.57462275}, {'id': 'https://openalex.org/C164918935', 'wikidata': 'https://www.wikidata.org/wiki/Q1406191', 'display_name': 'Hydrogen line', 'level': 3, 'score': 0.521648}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.51788354}, {'id': 'https://openalex.org/C198352243', 'wikidata': 'https://www.wikidata.org/wiki/Q37105', 'display_name': 'Line (geometry)', 'level': 2, 'score': 0.4361079}, {'id': 'https://openalex.org/C33024259', 'wikidata': 'https://www.wikidata.org/wiki/Q76250', 'display_name': 'Redshift', 'level': 3, 'score': 0.22173688}, {'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}], 'mesh': [], 'locations_count': 3, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1093/pasj/psac042', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S12390406', 'display_name': 'Publications of the Astronomical Society of Japan', 'issn_l': '0004-6264', 'issn': ['0004-6264', '2053-051X'], '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': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://arxiv.org/abs/2303.07594', 'pdf_url': 'https://arxiv.org/pdf/2303.07594', '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.2303.07594', '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://arxiv.org/abs/2303.07594', 'pdf_url': 'https://arxiv.org/pdf/2303.07594', '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}, 'sustainable_development_goals': [], 'grants': [{'funder': 'https://openalex.org/F4320321001', 'funder_display_name': 'National Natural Science Foundation of China', 'award_id': '12103044'}, {'funder': 'https://openalex.org/F4320334764', 'funder_display_name': 'Japan Society for the Promotion of Science', 'award_id': '17H04827'}, {'funder': 'https://openalex.org/F4320334764', 'funder_display_name': 'Japan Society for the Promotion of Science', 'award_id': '21H04489'}, {'funder': 'https://openalex.org/F4320334764', 'funder_display_name': 'Japan Society for the Promotion of Science', 'award_id': '18K03699'}, {'funder': 'https://openalex.org/F4320334764', 'funder_display_name': 'Japan Society for the Promotion of Science', 'award_id': '21J00416'}, {'funder': 'https://openalex.org/F4320334764', 'funder_display_name': 'Japan Society for the Promotion of Science', 'award_id': '20H04724'}], 'datasets': [], 'versions': ['https://openalex.org/W4283523277'], 'referenced_works_count': 323, 'referenced_works': ['https://openalex.org/W1502782017', 'https://openalex.org/W1523497691', 'https://openalex.org/W1539448295', 'https://openalex.org/W1555244070', 'https://openalex.org/W1555897420', 'https://openalex.org/W1558798502', 'https://openalex.org/W1591764244', 'https://openalex.org/W1633529777', 'https://openalex.org/W1645051473', 'https://openalex.org/W1780809794', 'https://openalex.org/W1806759382', 'https://openalex.org/W1841851840', 'https://openalex.org/W1873391640', 'https://openalex.org/W1899149329', 'https://openalex.org/W1901069075', 'https://openalex.org/W1904423877', 'https://openalex.org/W1908085087', 'https://openalex.org/W1910580027', 'https://openalex.org/W1917430035', 'https://openalex.org/W1921567268', 'https://openalex.org/W1923432445', 'https://openalex.org/W1931693470', 'https://openalex.org/W1961441514', 'https://openalex.org/W1964856306', 'https://openalex.org/W1975679485', 'https://openalex.org/W1977030723', 'https://openalex.org/W1978253505', 'https://openalex.org/W1979779097', 'https://openalex.org/W1981150688', 'https://openalex.org/W1982706728', 'https://openalex.org/W1985238961', 'https://openalex.org/W1985869482', 'https://openalex.org/W1992271570', 'https://openalex.org/W1994079091', 'https://openalex.org/W1994981447', 'https://openalex.org/W1997702548', 'https://openalex.org/W1998396140', 'https://openalex.org/W2004650883', 'https://openalex.org/W2007819064', 'https://openalex.org/W2013458015', 'https://openalex.org/W2013741966', 'https://openalex.org/W2020704120', 'https://openalex.org/W2021873199', 'https://openalex.org/W2022696115', 'https://openalex.org/W2023074599', 'https://openalex.org/W2023968025', 'https://openalex.org/W2023972260', 'https://openalex.org/W2026752146', 'https://openalex.org/W2027334559', 'https://openalex.org/W2030821094', 'https://openalex.org/W2031826267', 'https://openalex.org/W2033073195', 'https://openalex.org/W2038251620', 'https://openalex.org/W2038421608', 'https://openalex.org/W2038967714', 'https://openalex.org/W2039145096', 'https://openalex.org/W2039642487', 'https://openalex.org/W2041584190', 'https://openalex.org/W2052196743', 'https://openalex.org/W2053516314', 'https://openalex.org/W2060593869', 'https://openalex.org/W2060961770', 'https://openalex.org/W2063614461', 'https://openalex.org/W2066071309', 'https://openalex.org/W2067649418', 'https://openalex.org/W2069592831', 'https://openalex.org/W2073938066', 'https://openalex.org/W2077821708', 'https://openalex.org/W2079349557', 'https://openalex.org/W2079620094', 'https://openalex.org/W2080218769', 'https://openalex.org/W2081282337', 'https://openalex.org/W2081894932', 'https://openalex.org/W2082379780', 'https://openalex.org/W2083222422', 'https://openalex.org/W2084135442', 'https://openalex.org/W2087860870', 'https://openalex.org/W2093073139', 'https://openalex.org/W2097772074', 'https://openalex.org/W2097835815', 'https://openalex.org/W2101179843', 'https://openalex.org/W2103364610', 'https://openalex.org/W2107301108', 'https://openalex.org/W2107330317', 'https://openalex.org/W2110147018', 'https://openalex.org/W2110401158', 'https://openalex.org/W2110939566', 'https://openalex.org/W2112064400', 'https://openalex.org/W2113012085', 'https://openalex.org/W2114344218', 'https://openalex.org/W2117323006', 'https://openalex.org/W2118150506', 'https://openalex.org/W2121316227', 'https://openalex.org/W2123793589', 'https://openalex.org/W2124576294', 'https://openalex.org/W2125309281', 'https://openalex.org/W2125648405', 'https://openalex.org/W2131278175', 'https://openalex.org/W2135335133', 'https://openalex.org/W2136969532', 'https://openalex.org/W2141806264', 'https://openalex.org/W2144157417', 'https://openalex.org/W2144267149', 'https://openalex.org/W2147358659', 'https://openalex.org/W2147626801', 'https://openalex.org/W2148479972', 'https://openalex.org/W2148806080', 'https://openalex.org/W2150049924', 'https://openalex.org/W2150261663', 'https://openalex.org/W2152043060', 'https://openalex.org/W2156733174', 'https://openalex.org/W2157427356', 'https://openalex.org/W2158252435', 'https://openalex.org/W2163023297', 'https://openalex.org/W2163239929', 'https://openalex.org/W2166026120', 'https://openalex.org/W2170252886', 'https://openalex.org/W2172146897', 'https://openalex.org/W2234515242', 'https://openalex.org/W2255216631', 'https://openalex.org/W2256956407', 'https://openalex.org/W2259243443', 'https://openalex.org/W2278572240', 'https://openalex.org/W2279203718', 'https://openalex.org/W2289671972', 'https://openalex.org/W2310472807', 'https://openalex.org/W2325917856', 'https://openalex.org/W2345814028', 'https://openalex.org/W2406953026', 'https://openalex.org/W2425957420', 'https://openalex.org/W2480050565', 'https://openalex.org/W2486493261', 'https://openalex.org/W2492095891', 'https://openalex.org/W2520740623', 'https://openalex.org/W2569199829', 'https://openalex.org/W2581012030', 'https://openalex.org/W2581259285', 'https://openalex.org/W2581784940', 'https://openalex.org/W2589790277', 'https://openalex.org/W2594398567', 'https://openalex.org/W2597412078', 'https://openalex.org/W2606634898', 'https://openalex.org/W2608400145', 'https://openalex.org/W2614661187', 'https://openalex.org/W2737482437', 'https://openalex.org/W2740110372', 'https://openalex.org/W2741359341', 'https://openalex.org/W2751397457', 'https://openalex.org/W2762741961', 'https://openalex.org/W2764096479', 'https://openalex.org/W2767651365', 'https://openalex.org/W2774038745', 'https://openalex.org/W2774444386', 'https://openalex.org/W2774972298', 'https://openalex.org/W2786798258', 'https://openalex.org/W2786844423', 'https://openalex.org/W2788168931', 'https://openalex.org/W2788581379', 'https://openalex.org/W2789008207', 'https://openalex.org/W2789051766', 'https://openalex.org/W2796180098', 'https://openalex.org/W2800319132', 'https://openalex.org/W2802101283', 'https://openalex.org/W2803801964', 'https://openalex.org/W2803957618', 'https://openalex.org/W2809058194', 'https://openalex.org/W2811080767', 'https://openalex.org/W2811351692', 'https://openalex.org/W2884820149', 'https://openalex.org/W2887945251', 'https://openalex.org/W2889702073', 'https://openalex.org/W2890475738', 'https://openalex.org/W2890583677', 'https://openalex.org/W2891639492', 'https://openalex.org/W2899205658', 'https://openalex.org/W2901526385', 'https://openalex.org/W2902255315', 'https://openalex.org/W2909537245', 'https://openalex.org/W2912370910', 'https://openalex.org/W2915201144', 'https://openalex.org/W2952288901', 'https://openalex.org/W2959589769', 'https://openalex.org/W2961611262', 'https://openalex.org/W2962814127', 'https://openalex.org/W2964131587', 'https://openalex.org/W2964323761', 'https://openalex.org/W2966489714', 'https://openalex.org/W2972281144', 'https://openalex.org/W2975855919', 'https://openalex.org/W2978611150', 'https://openalex.org/W2978750756', 'https://openalex.org/W2979904753', 'https://openalex.org/W2980075504', 'https://openalex.org/W2981491556', 'https://openalex.org/W2982132322', 'https://openalex.org/W2982225788', 'https://openalex.org/W2989175718', 'https://openalex.org/W2991066420', 'https://openalex.org/W2995207491', 'https://openalex.org/W3005105000', 'https://openalex.org/W3006710490', 'https://openalex.org/W3011854858', 'https://openalex.org/W3015004116', 'https://openalex.org/W3016465171', 'https://openalex.org/W3016819420', 'https://openalex.org/W3019499431', 'https://openalex.org/W3026697817', 'https://openalex.org/W3033178352', 'https://openalex.org/W3037229700', 'https://openalex.org/W3043127663', 'https://openalex.org/W3045534633', 'https://openalex.org/W3046933266', 'https://openalex.org/W3048621947', 'https://openalex.org/W3084892468', 'https://openalex.org/W3087633318', 'https://openalex.org/W3092456483', 'https://openalex.org/W3093754683', 'https://openalex.org/W3097306519', 'https://openalex.org/W3097984609', 'https://openalex.org/W3098034767', 'https://openalex.org/W3098083743', 'https://openalex.org/W3098196590', 'https://openalex.org/W3098222861', 'https://openalex.org/W3098334823', 'https://openalex.org/W3098522964', 'https://openalex.org/W3098903043', 'https://openalex.org/W3099001863', 'https://openalex.org/W3099094136', 'https://openalex.org/W3099280424', 'https://openalex.org/W3099393729', 'https://openalex.org/W3099414194', 'https://openalex.org/W3100048804', 'https://openalex.org/W3100202862', 'https://openalex.org/W3100516736', 'https://openalex.org/W3100523401', 'https://openalex.org/W3100647252', 'https://openalex.org/W3100691731', 'https://openalex.org/W3100861299', 'https://openalex.org/W3100901477', 'https://openalex.org/W3101097469', 'https://openalex.org/W3101099516', 'https://openalex.org/W3101109822', 'https://openalex.org/W3101208819', 'https://openalex.org/W3101255717', 'https://openalex.org/W3101517874', 'https://openalex.org/W3101524095', 'https://openalex.org/W3101901256', 'https://openalex.org/W3102263861', 'https://openalex.org/W3102536016', 'https://openalex.org/W3102541771', 'https://openalex.org/W3102664041', 'https://openalex.org/W3102706913', 'https://openalex.org/W3102713726', 'https://openalex.org/W3103506991', 'https://openalex.org/W3103532770', 'https://openalex.org/W3103565582', 'https://openalex.org/W3103730211', 'https://openalex.org/W3104006277', 'https://openalex.org/W3104091027', 'https://openalex.org/W3104091515', 'https://openalex.org/W3104372544', 'https://openalex.org/W3104485262', 'https://openalex.org/W3104555539', 'https://openalex.org/W3104851408', 'https://openalex.org/W3104989493', 'https://openalex.org/W3105035993', 'https://openalex.org/W3105206445', 'https://openalex.org/W3105311481', 'https://openalex.org/W3105521941', 'https://openalex.org/W3105625017', 'https://openalex.org/W3106171658', 'https://openalex.org/W3106285783', 'https://openalex.org/W3106323837', 'https://openalex.org/W3106442982', 'https://openalex.org/W3107804389', 'https://openalex.org/W3109831313', 'https://openalex.org/W3111229082', 'https://openalex.org/W3115216495', 'https://openalex.org/W3119902259', 'https://openalex.org/W3121103564', 'https://openalex.org/W3121309853', 'https://openalex.org/W3122129904', 'https://openalex.org/W3122732605', 'https://openalex.org/W3123332806', 'https://openalex.org/W3125822596', 'https://openalex.org/W3127415997', 'https://openalex.org/W3131914683', 'https://openalex.org/W3136040251', 'https://openalex.org/W3149200386', 'https://openalex.org/W3153043784', 'https://openalex.org/W3153709178', 'https://openalex.org/W3153738970', 'https://openalex.org/W3158554520', 'https://openalex.org/W3163167596', 'https://openalex.org/W3165513413', 'https://openalex.org/W3174592924', 'https://openalex.org/W3179995740', 'https://openalex.org/W3181865981', 'https://openalex.org/W3185997710', 'https://openalex.org/W3189321296', 'https://openalex.org/W3189997181', 'https://openalex.org/W3194665130', 'https://openalex.org/W3195561489', 'https://openalex.org/W3202276905', 'https://openalex.org/W3204334576', 'https://openalex.org/W3207270974', 'https://openalex.org/W3210175807', 'https://openalex.org/W3214898145', 'https://openalex.org/W3215216657', 'https://openalex.org/W3217209291', 'https://openalex.org/W4206024054', 'https://openalex.org/W4206671859', 'https://openalex.org/W4206675048', 'https://openalex.org/W4206882644', 'https://openalex.org/W4206969958', 'https://openalex.org/W4213013177', 'https://openalex.org/W4213230128', 'https://openalex.org/W4226106425', 'https://openalex.org/W4229046764', 'https://openalex.org/W4288079944', 'https://openalex.org/W4292875581', 'https://openalex.org/W4297918278', 'https://openalex.org/W853936907'], 'related_works': ['https://openalex.org/W4283523277', 'https://openalex.org/W4223994222', 'https://openalex.org/W3154057236', 'https://openalex.org/W3083572085', 'https://openalex.org/W2950673789', 'https://openalex.org/W2621772183', 'https://openalex.org/W2153994109', 'https://openalex.org/W2108068182', 'https://openalex.org/W2098357885', 'https://openalex.org/W1539448295'], 'abstract_inverted_index': {'Abstract': [0], 'The': [1, 74], 'dark': [2, 56], 'age': [3], 'of': [4, 16, 36, 68, 105, 139, 165], 'the': [5, 14, 17, 33, 37, 41, 52, 55, 64, 102, 106, 112, 117, 132, 147, 150, 162], 'Universe,': [6, 65], 'when': [7], 'no': [8], 'luminous': [9, 49], 'object': [10], 'existed,': [11], 'ended': [12], 'with': [13], 'birth': [15], 'first': [18, 100, 113], 'stars,': [19], 'galaxies,': [20], 'and': [21, 110, 141, 155], 'black': [22], 'holes.': [23], 'This': [24], 'epoch': [25, 53], 'is': [26, 32, 60, 70, 80, 85], 'called': [27], 'cosmic': [28, 75], 'dawn.': [29], 'Cosmic': [30], 'reionization': [31, 59], 'major': [34], 'transition': [35], 'intergalactic': [38], 'medium': [39], 'in': [40, 63], 'Universe': [42], 'driven': [43], 'by': [44, 137], 'ionizing': [45], 'photons': [46], 'emitted': [47, 81], 'from': [48, 82, 131], 'objects.': [50], 'Although': [51], 'through': [54], 'ages': [57], 'to': [58, 87], 'a': [61, 89], 'milestone': [62], 'our': [66], 'knowledge': [67], 'it': [69], 'not': [71], 'yet': [72], 'sufficient.': [73], '21': [76, 107, 118, 133, 151, 166], 'cm': [77, 108, 119, 134, 152, 167], 'signal,': [78], 'which': [79], 'neutral': [83], 'hydrogen,': [84], 'expected': [86], 'open': [88], 'new': [90], 'window': [91], 'into': [92], 'this': [93, 96], 'epoch.': [94], 'In': [95], 'review': [97], 'paper,': [98], 'we': [99, 123, 127, 160], 'introduce': [101], 'basic': [103], 'physics': [104], 'line': [109, 120, 135, 153], 'how': [111, 126], 'stars': [114], 'impact': [115], 'on': [116], 'signal.': [121], 'Next,': [122], 'briefly': [124], 'summarize': [125, 161], 'extract': [128], 'astrophysical': [129], 'information': [130], 'signal': [136, 154], 'means': [138], 'statistical': [140], 'machine-learning': [142], 'approaches.': [143], 'We': [144], 'also': [145], 'discuss': [146], 'synergy': [148], 'between': [149], 'other': [156], 'emission': [157], 'lines.': [158], 'Finally,': [159], 'current': [163], 'status': [164], 'experiments.': [168]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W4283523277', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 1}], 'updated_date': '2024-09-14T13:56:10.426581', 'created_date': '2022-06-27'}