Publication Information

{'id': 'https://openalex.org/W3125215205', 'doi': 'https://doi.org/10.1086/378496', 'title': 'The Physical Parameters, Excitation, and Chemistry of the Rim, Jets, and Knots of the Planetary Nebula NGC 7009', 'display_name': 'The Physical Parameters, Excitation, and Chemistry of the Rim, Jets, and Knots of the Planetary Nebula NGC 7009', 'publication_year': 2003, 'publication_date': '2003-11-07', 'ids': {'openalex': 'https://openalex.org/W3125215205', 'doi': 'https://doi.org/10.1086/378496', 'mag': '3125215205'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1086/378496', 'pdf_url': 'https://iopscience.iop.org/article/10.1086/378496/pdf', 'source': {'id': 'https://openalex.org/S1980519', 'display_name': 'The Astrophysical Journal', 'issn_l': '0004-637X', 'issn': ['0004-637X', '1538-4357'], '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': ['crossref', 'datacite'], 'open_access': {'is_oa': True, 'oa_status': 'bronze', 'oa_url': 'https://iopscience.iop.org/article/10.1086/378496/pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5102386248', 'display_name': 'Denise R. Gonçalves', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210130807', 'display_name': 'Instituto de Astrofísica de Canarias', 'ror': 'https://ror.org/03cmntr54', 'country_code': 'ES', 'type': 'facility', 'lineage': ['https://openalex.org/I158438070', 'https://openalex.org/I4210130807']}], 'countries': ['ES'], 'is_corresponding': False, 'raw_author_name': 'Denise R. Goncalves', 'raw_affiliation_strings': ['Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain'], 'affiliations': [{'raw_affiliation_string': 'Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain', 'institution_ids': ['https://openalex.org/I4210130807']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5033009567', 'display_name': 'R. L. M. Corradi', 'orcid': 'https://orcid.org/0000-0002-7865-6056'}, 'institutions': [{'id': 'https://openalex.org/I4210156485', 'display_name': 'Isaac Newton Group', 'ror': 'https://ror.org/054tmk179', 'country_code': 'ES', 'type': 'facility', 'lineage': ['https://openalex.org/I158438070', 'https://openalex.org/I162524378', 'https://openalex.org/I4210087105', 'https://openalex.org/I4210130807', 'https://openalex.org/I4210156485']}], 'countries': ['ES'], 'is_corresponding': False, 'raw_author_name': 'Romano L. M. Corradi', 'raw_affiliation_strings': ['Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de la Palma, Spain'], 'affiliations': [{'raw_affiliation_string': 'Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de la Palma, Spain', 'institution_ids': ['https://openalex.org/I4210156485']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5059290188', 'display_name': 'A. Mampaso', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210130807', 'display_name': 'Instituto de Astrofísica de Canarias', 'ror': 'https://ror.org/03cmntr54', 'country_code': 'ES', 'type': 'facility', 'lineage': ['https://openalex.org/I158438070', 'https://openalex.org/I4210130807']}], 'countries': ['ES'], 'is_corresponding': False, 'raw_author_name': 'Antonio Mampaso', 'raw_affiliation_strings': ['Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain'], 'affiliations': [{'raw_affiliation_string': 'Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain', 'institution_ids': ['https://openalex.org/I4210130807']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5054240191', 'display_name': 'M. Perinotto', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I45084792', 'display_name': 'University of Florence', 'ror': 'https://ror.org/04jr1s763', 'country_code': 'IT', 'type': 'education', 'lineage': ['https://openalex.org/I45084792']}], 'countries': ['IT'], 'is_corresponding': False, 'raw_author_name': 'Mario Perinotto', 'raw_affiliation_strings': ['Dipartimento di Astronomia e Scienza dello Spazio, Università di Firenze, Largo E. Fermi 5, 50125 Florence, Italy'], 'affiliations': [{'raw_affiliation_string': 'Dipartimento di Astronomia e Scienza dello Spazio, Università di Firenze, Largo E. Fermi 5, 50125 Florence, Italy', 'institution_ids': ['https://openalex.org/I45084792']}]}], 'institution_assertions': [], 'countries_distinct_count': 2, 'institutions_distinct_count': 3, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 4499, 'currency': 'USD', 'value_usd': 4499, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.025, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 23, 'citation_normalized_percentile': {'value': 0.887278, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 86, 'max': 87}, 'biblio': {'volume': '597', 'issue': '2', 'first_page': '975', 'last_page': '985'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10477', 'display_name': 'Astrophysics and Star Formation 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/T10477', 'display_name': 'Astrophysics and Star Formation 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/T10039', 'display_name': 'Stellar, planetary, and galactic studies', 'score': 0.9998, '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': 0.9996, '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': [], 'concepts': [{'id': 'https://openalex.org/C95373548', 'wikidata': 'https://www.wikidata.org/wiki/Q13632', 'display_name': 'Planetary nebula', 'level': 3, 'score': 0.8302256}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.7712168}, {'id': 'https://openalex.org/C2779496878', 'wikidata': 'https://www.wikidata.org/wiki/Q42372', 'display_name': 'Nebula', 'level': 3, 'score': 0.74291784}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.6675334}, {'id': 'https://openalex.org/C4839761', 'wikidata': 'https://www.wikidata.org/wiki/Q212111', 'display_name': 'Spectral line', 'level': 2, 'score': 0.50722694}, {'id': 'https://openalex.org/C83581075', 'wikidata': 'https://www.wikidata.org/wiki/Q1361503', 'display_name': 'Excitation', 'level': 2, 'score': 0.47117287}, {'id': 'https://openalex.org/C181500209', 'wikidata': 'https://www.wikidata.org/wiki/Q215328', 'display_name': 'Excited state', 'level': 2, 'score': 0.4530494}, {'id': 'https://openalex.org/C119947313', 'wikidata': 'https://www.wikidata.org/wiki/Q5596635', 'display_name': 'Jet (fluid)', 'level': 2, 'score': 0.43558568}, {'id': 'https://openalex.org/C125485243', 'wikidata': 'https://www.wikidata.org/wiki/Q905186', 'display_name': 'Electron density', 'level': 3, 'score': 0.4315924}, {'id': 'https://openalex.org/C147120987', 'wikidata': 'https://www.wikidata.org/wiki/Q2225', 'display_name': 'Electron', 'level': 2, 'score': 0.23345318}, {'id': 'https://openalex.org/C1276947', 'wikidata': 'https://www.wikidata.org/wiki/Q333', 'display_name': 'Astronomy', 'level': 1, 'score': 0.22416076}, {'id': 'https://openalex.org/C150846664', 'wikidata': 'https://www.wikidata.org/wiki/Q7602306', 'display_name': 'Stars', 'level': 2, 'score': 0.17860752}, {'id': 'https://openalex.org/C184779094', 'wikidata': 'https://www.wikidata.org/wiki/Q26383', 'display_name': 'Atomic physics', 'level': 1, 'score': 0.112320095}, {'id': 'https://openalex.org/C57879066', 'wikidata': 'https://www.wikidata.org/wiki/Q41217', 'display_name': 'Mechanics', 'level': 1, 'score': 0.053640455}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 3, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1086/378496', 'pdf_url': 'https://iopscience.iop.org/article/10.1086/378496/pdf', 'source': {'id': 'https://openalex.org/S1980519', 'display_name': 'The Astrophysical Journal', 'issn_l': '0004-637X', 'issn': ['0004-637X', '1538-4357'], '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/astro-ph/0307265', 'pdf_url': 'http://arxiv.org/pdf/astro-ph/0307265', '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.astro-ph/0307265', '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/10.1086/378496', 'pdf_url': 'https://iopscience.iop.org/article/10.1086/378496/pdf', 'source': {'id': 'https://openalex.org/S1980519', 'display_name': 'The Astrophysical Journal', 'issn_l': '0004-637X', 'issn': ['0004-637X', '1538-4357'], '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/W2031713016', 'https://openalex.org/W3125215205'], 'referenced_works_count': 61, 'referenced_works': ['https://openalex.org/W1535662833', 'https://openalex.org/W1555439077', 'https://openalex.org/W1619013860', 'https://openalex.org/W1652571115', 'https://openalex.org/W1654612536', 'https://openalex.org/W1874242271', 'https://openalex.org/W1975323964', 'https://openalex.org/W1984790468', 'https://openalex.org/W1986510200', 'https://openalex.org/W1987247542', 'https://openalex.org/W1988107237', 'https://openalex.org/W1997309059', 'https://openalex.org/W1998329609', 'https://openalex.org/W1999207619', 'https://openalex.org/W1999522619', 'https://openalex.org/W2002212346', 'https://openalex.org/W2002570248', 'https://openalex.org/W2003666681', 'https://openalex.org/W2007316292', 'https://openalex.org/W2008140750', 'https://openalex.org/W2013827539', 'https://openalex.org/W2015382955', 'https://openalex.org/W2016270547', 'https://openalex.org/W2028068504', 'https://openalex.org/W2028096596', 'https://openalex.org/W2039446204', 'https://openalex.org/W2039896322', 'https://openalex.org/W2041359237', 'https://openalex.org/W2042063731', 'https://openalex.org/W2042747798', 'https://openalex.org/W2045365855', 'https://openalex.org/W2047522384', 'https://openalex.org/W2052984037', 'https://openalex.org/W2061708514', 'https://openalex.org/W2068749264', 'https://openalex.org/W2071499046', 'https://openalex.org/W2074242620', 'https://openalex.org/W2081536964', 'https://openalex.org/W2086105334', 'https://openalex.org/W2087597474', 'https://openalex.org/W2088134590', 'https://openalex.org/W2089672273', 'https://openalex.org/W2107002261', 'https://openalex.org/W2109353143', 'https://openalex.org/W2115008877', 'https://openalex.org/W2116702916', 'https://openalex.org/W2135507455', 'https://openalex.org/W2142607336', 'https://openalex.org/W2167635287', 'https://openalex.org/W2499570974', 'https://openalex.org/W3013438729', 'https://openalex.org/W3021840914', 'https://openalex.org/W3035090995', 'https://openalex.org/W3101169985', 'https://openalex.org/W3101687391', 'https://openalex.org/W3101965738', 'https://openalex.org/W3125363475', 'https://openalex.org/W4241427149', 'https://openalex.org/W4244818491', 'https://openalex.org/W4255959520', 'https://openalex.org/W85711916'], 'related_works': ['https://openalex.org/W3100649762', 'https://openalex.org/W3028557070', 'https://openalex.org/W2503281470', 'https://openalex.org/W2250021022', 'https://openalex.org/W2109550292', 'https://openalex.org/W2082772080', 'https://openalex.org/W2076023547', 'https://openalex.org/W1649518387', 'https://openalex.org/W1610968389', 'https://openalex.org/W101069990'], 'abstract_inverted_index': {'We': [0], 'present': [1], 'long-slit': [2], 'optical': [3], 'spectra': [4], 'along': [5], 'the': [6, 10, 21, 29, 33, 50, 53, 57, 66, 94, 101, 105, 127, 146, 151, 156, 174, 184, 187, 190, 197, 201, 211, 219, 224, 229, 234], 'major': [7], 'axis': [8], 'of': [9, 27, 32, 39, 46, 73, 78, 87, 143, 176, 189, 221, 233], 'planetary': [11], 'nebula': [12, 58, 128], 'NGC': [13], '7009.': [14], 'These': [15], 'data': [16, 170], 'allow': [17], 'us': [18], 'to': [19, 173], 'discuss': [20], 'physical,': [22], 'excitation': [23, 231], 'and': [24, 41, 70, 111, 118, 155], 'chemical': [25], 'properties': [26], 'all': [28, 104], 'morphological': [30], 'components': [31], 'nebula,': [34], 'including': [35], 'its': [36], 'remarkable': [37], 'systems': [38], 'knots': [40, 74, 96, 148, 185], 'jets.': [42], 'The': [43], 'main': [44, 230], 'results': [45], 'this': [47], 'analysis': [48], 'are': [49, 114, 121, 163, 171, 192], 'following:': [51], 'i)': [52], 'electron': [54], 'temperature': [55], 'throughout': [56], 'is': [59, 91, 136], 'remarkably': [60], 'constant,': [61], 'T_e[OIII]': [62], '=': [63, 80, 89], '10200K;': [64], 'ii)': [65], 'bright': [67], 'inner': [68, 71, 108, 152], 'rim': [69, 157], 'pair': [72], 'have': [75, 158], 'similar': [76, 159], 'densities': [77, 225], 'N_e': [79, 88], '6000cm^{-3},': [81], 'whereas': [82], 'a': [83, 137], 'much': [84], 'lower': [85], 'density': [86], '1500cm^{-3}': [90], 'derived': [92], 'for': [93, 100, 129, 140, 218], 'outer': [95, 112, 147], 'as': [97, 99, 226, 228], 'well': [98, 227], 'jets;': [102], 'iii)': [103], 'regions': [106], '(rim,': [107], 'knots,': [109, 235], 'jets': [110, 191], 'knots)': [113], 'mainly': [115], 'radiatively': [116], 'excited;': [117], 'iv)': [119], 'there': [120], 'no': [122], 'clear': [123], 'abundance': [124], 'changes': [125], 'across': [126], 'He,': [130], 'O,': [131], 'Ne,': [132], 'or': [133, 214], 'S.': [134], 'There': [135], 'marginal': [138], 'evidence': [139], 'an': [141], 'overabundance': [142], 'nitrogen': [144], 'in': [145], '(ansae),': [149], 'but': [150], 'ones': [153], '(caps)': [154], 'N/H': [160], 'values': [161], 'that': [162, 183], 'at': [164, 186], 'variance': [165], 'with': [166, 237], 'previous': [167], 'results.': [168], 'Our': [169], 'compared': [172], 'predictions': [175], 'theoretical': [177], 'models,': [178], 'from': [179], 'which': [180], 'we': [181], 'conclude': [182], 'head': [188], 'not': [193], 'matter': [194], 'accumulated': [195], 'during': [196], 'jet': [198], 'expansion': [199], 'through': [200], 'circumstellar': [202], 'medium,': [203], 'neither': [204], 'can': [205], 'their': [206], 'origin': [207], 'be': [208], 'explained': [209], 'by': [210], 'proposed': [212], 'HD': [213], 'MHD': [215], 'interacting-wind': [216], 'models': [217], 'formation': [220], 'jets/ansae,': [222], 'since': [223], 'mechanisms': [232], 'disagree': [236], 'model': [238], 'predictions.': [239]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W3125215205', 'counts_by_year': [{'year': 2020, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 4}, {'year': 2015, 'cited_by_count': 2}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 1}], 'updated_date': '2025-01-06T10:59:54.062463', 'created_date': '2021-02-01'}