Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W1981857259', 'doi': 'https://doi.org/10.1103/physrevd.67.124018', 'title': 'Axisymmetric core collapse simulations using characteristic numerical relativity', 'display_name': 'Axisymmetric core collapse simulations using characteristic numerical relativity', 'publication_year': 2003, 'publication_date': '2003-06-13', 'ids': {'openalex': 'https://openalex.org/W1981857259', 'doi': 'https://doi.org/10.1103/physrevd.67.124018', 'mag': '1981857259'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1103/physrevd.67.124018', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210190737', 'display_name': 'Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields', 'issn_l': '0556-2821', 'issn': ['0556-2821', '1089-4918', '1538-4500'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320261', 'host_organization_name': 'American Physical Society', 'host_organization_lineage': ['https://openalex.org/P4310320261'], 'host_organization_lineage_names': ['American Physical Society'], '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': 'http://arxiv.org/pdf/gr-qc/0301127', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5016271995', 'display_name': 'Florian Siebel', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210103661', 'display_name': 'Max Planck Institute for Astrophysics', 'ror': 'https://ror.org/017qcv467', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210103661']}, {'id': 'https://openalex.org/I149899117', 'display_name': 'Max Planck Society', 'ror': 'https://ror.org/01hhn8329', 'country_code': 'DE', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I149899117']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Florian Siebel', 'raw_affiliation_strings': ['Stellar Astrophysics, MPI for Astrophysics, Max Planck Society'], 'affiliations': [{'raw_affiliation_string': 'Stellar Astrophysics, MPI for Astrophysics, Max Planck Society', 'institution_ids': ['https://openalex.org/I4210103661', 'https://openalex.org/I149899117']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5088679659', 'display_name': 'J. A. Font', 'orcid': 'https://orcid.org/0000-0001-6650-2634'}, 'institutions': [{'id': 'https://openalex.org/I16097986', 'display_name': 'Universitat de València', 'ror': 'https://ror.org/043nxc105', 'country_code': 'ES', 'type': 'education', 'lineage': ['https://openalex.org/I16097986']}], 'countries': ['ES'], 'is_corresponding': False, 'raw_author_name': 'José A. Font', 'raw_affiliation_strings': ['Departamento de Astronomía y Astrofísica, Edificio de Investigación, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot (Valencia), Spain'], 'affiliations': [{'raw_affiliation_string': 'Departamento de Astronomía y Astrofísica, Edificio de Investigación, Universidad de Valencia, Dr. Moliner 50, 46100 Burjassot (Valencia), Spain', 'institution_ids': ['https://openalex.org/I16097986']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5111925509', 'display_name': 'Ewald Müller', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210103661', 'display_name': 'Max Planck Institute for Astrophysics', 'ror': 'https://ror.org/017qcv467', 'country_code': 'DE', 'type': 'facility', 'lineage': ['https://openalex.org/I149899117', 'https://openalex.org/I4210103661']}, {'id': 'https://openalex.org/I149899117', 'display_name': 'Max Planck Society', 'ror': 'https://ror.org/01hhn8329', 'country_code': 'DE', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I149899117']}], 'countries': ['DE'], 'is_corresponding': False, 'raw_author_name': 'Ewald Müller', 'raw_affiliation_strings': ['Stellar Astrophysics, MPI for Astrophysics, Max Planck Society'], 'affiliations': [{'raw_affiliation_string': 'Stellar Astrophysics, MPI for Astrophysics, Max Planck Society', 'institution_ids': ['https://openalex.org/I4210103661', 'https://openalex.org/I149899117']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5046966564', 'display_name': 'Philippos Papadopoulos', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I63072094', 'display_name': 'University of Portsmouth', 'ror': 'https://ror.org/03ykbk197', 'country_code': 'GB', 'type': 'education', 'lineage': ['https://openalex.org/I63072094']}], 'countries': ['GB'], 'is_corresponding': False, 'raw_author_name': 'Philippos Papadopoulos', 'raw_affiliation_strings': ['School of Computer Science and Mathematics, University of Portsmouth, Portsmouth PO1 2EG, United Kingdom'], 'affiliations': [{'raw_affiliation_string': 'School of Computer Science and Mathematics, University of Portsmouth, Portsmouth PO1 2EG, United Kingdom', 'institution_ids': ['https://openalex.org/I63072094']}]}], 'institution_assertions': [], 'countries_distinct_count': 3, 'institutions_distinct_count': 4, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 2.905, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 61, 'citation_normalized_percentile': {'value': 0.924464, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 93, 'max': 94}, 'biblio': {'volume': '67', 'issue': '12', 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10463', 'display_name': 'Pulsars and Gravitational Waves Research', '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/T10463', 'display_name': 'Pulsars and Gravitational Waves Research', '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/T11323', 'display_name': 'Gamma-ray bursts and supernovae', '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'}}, {'id': 'https://openalex.org/T10744', 'display_name': 'Astrophysical Phenomena and Observations', 'score': 0.9988, '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/null', 'display_name': 'Null (SQL)', 'score': 0.58281386}], 'concepts': [{'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.874094}, {'id': 'https://openalex.org/C190330329', 'wikidata': 'https://www.wikidata.org/wiki/Q190035', 'display_name': 'Gravitational wave', 'level': 2, 'score': 0.78705263}, {'id': 'https://openalex.org/C44715290', 'wikidata': 'https://www.wikidata.org/wiki/Q13012237', 'display_name': 'Numerical relativity', 'level': 3, 'score': 0.75848913}, {'id': 'https://openalex.org/C147452769', 'wikidata': 'https://www.wikidata.org/wiki/Q11452', 'display_name': 'General relativity', 'level': 2, 'score': 0.65462244}, {'id': 'https://openalex.org/C203763787', 'wikidata': 'https://www.wikidata.org/wiki/Q371029', 'display_name': 'Null (SQL)', 'level': 2, 'score': 0.58281386}, {'id': 'https://openalex.org/C192887742', 'wikidata': 'https://www.wikidata.org/wiki/Q4202', 'display_name': 'Neutron star', 'level': 2, 'score': 0.56876135}, {'id': 'https://openalex.org/C118396296', 'wikidata': 'https://www.wikidata.org/wiki/Q329273', 'display_name': 'Gravitational collapse', 'level': 2, 'score': 0.55846786}, {'id': 'https://openalex.org/C39984356', 'wikidata': 'https://www.wikidata.org/wiki/Q2121987', 'display_name': 'Quadrupole', 'level': 2, 'score': 0.55638707}, {'id': 'https://openalex.org/C74650414', 'wikidata': 'https://www.wikidata.org/wiki/Q11397', 'display_name': 'Classical mechanics', 'level': 1, 'score': 0.533059}, {'id': 'https://openalex.org/C33026886', 'wikidata': 'https://www.wikidata.org/wiki/Q593950', 'display_name': 'Rotational symmetry', 'level': 2, 'score': 0.49368843}, {'id': 'https://openalex.org/C14257148', 'wikidata': 'https://www.wikidata.org/wiki/Q558066', 'display_name': 'Gravitational field', 'level': 2, 'score': 0.45912752}, {'id': 'https://openalex.org/C124017977', 'wikidata': 'https://www.wikidata.org/wiki/Q11412', 'display_name': 'Gravitation', 'level': 2, 'score': 0.44158223}, {'id': 'https://openalex.org/C57879066', 'wikidata': 'https://www.wikidata.org/wiki/Q41217', 'display_name': 'Mechanics', 'level': 1, 'score': 0.24942154}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.22183433}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.12832722}, {'id': 'https://openalex.org/C77088390', 'wikidata': 'https://www.wikidata.org/wiki/Q8513', 'display_name': 'Database', 'level': 1, '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': False, 'landing_page_url': 'https://doi.org/10.1103/physrevd.67.124018', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4210190737', 'display_name': 'Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields', 'issn_l': '0556-2821', 'issn': ['0556-2821', '1089-4918', '1538-4500'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320261', 'host_organization_name': 'American Physical Society', 'host_organization_lineage': ['https://openalex.org/P4310320261'], 'host_organization_lineage_names': ['American Physical Society'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'http://arxiv.org/abs/gr-qc/0301127', 'pdf_url': 'http://arxiv.org/pdf/gr-qc/0301127', '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/gr-qc/0301127', 'pdf_url': 'https://arxiv.org/pdf/gr-qc/0301127', '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.gr-qc/0301127', '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': 'http://arxiv.org/abs/gr-qc/0301127', 'pdf_url': 'http://arxiv.org/pdf/gr-qc/0301127', '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': [], 'datasets': [], 'versions': ['https://openalex.org/W1981857259'], 'referenced_works_count': 36, 'referenced_works': ['https://openalex.org/W104123318', 'https://openalex.org/W119088996', 'https://openalex.org/W129476089', 'https://openalex.org/W15271003', 'https://openalex.org/W1632633759', 'https://openalex.org/W1969992862', 'https://openalex.org/W1975149988', 'https://openalex.org/W1978976062', 'https://openalex.org/W1978998859', 'https://openalex.org/W1979020487', 'https://openalex.org/W1981920412', 'https://openalex.org/W1984062513', 'https://openalex.org/W1990262081', 'https://openalex.org/W1991440291', 'https://openalex.org/W1995112015', 'https://openalex.org/W1998374549', 'https://openalex.org/W2021726429', 'https://openalex.org/W2029131328', 'https://openalex.org/W2041777372', 'https://openalex.org/W2043057066', 'https://openalex.org/W2046538101', 'https://openalex.org/W2059690516', 'https://openalex.org/W2070246376', 'https://openalex.org/W2071816708', 'https://openalex.org/W2083659289', 'https://openalex.org/W2096214175', 'https://openalex.org/W2127243291', 'https://openalex.org/W2138475855', 'https://openalex.org/W2153120527', 'https://openalex.org/W2164605541', 'https://openalex.org/W3006548832', 'https://openalex.org/W3091782229', 'https://openalex.org/W3100685757', 'https://openalex.org/W3104580363', 'https://openalex.org/W4206528180', 'https://openalex.org/W4317640780'], 'related_works': ['https://openalex.org/W629326907', 'https://openalex.org/W4386721797', 'https://openalex.org/W4318703681', 'https://openalex.org/W4317648624', 'https://openalex.org/W3124533924', 'https://openalex.org/W3123789075', 'https://openalex.org/W3098903915', 'https://openalex.org/W3084070973', 'https://openalex.org/W2086612671', 'https://openalex.org/W113103606'], 'abstract_inverted_index': {'We': [0, 164], 'present': [1], 'results': [2, 128], 'from': [3, 63], 'nonrotating': [4], 'axisymmetric': [5], 'stellar': [6, 92], 'core': [7, 93], 'collapse': [8, 94], 'simulations': [9], 'in': [10, 87], 'general': [11], 'relativity.': [12], 'Our': [13, 127], 'hydrodynamics': [14], 'code': [15], 'has': [16], 'proved': [17], 'robust': [18], 'and': [19, 67, 95, 154], 'accurate': [20], 'enough': [21], 'to': [22, 36, 80, 183], 'allow': [23], 'for': [24, 105, 122, 170], 'a': [25, 52, 56, 64, 74, 166], 'detailed': [26], 'analysis': [27], 'of': [28, 32, 44, 58, 83, 108, 200], 'the': [29, 33, 41, 45, 81, 106, 117, 123, 130, 143, 151, 157, 161, 173, 177], 'global': [30], 'dynamics': [31], 'collapse.': [34], 'Contrary': [35], 'traditional': [37], 'approaches': [38], 'based': [39, 54], 'on': [40, 55, 150, 160, 176], '3+1': [42], 'formulation': [43], 'gravitational': [46, 109, 124, 131, 185, 190], 'field': [47], 'equations,': [48], 'our': [49, 171], 'framework': [50], 'uses': [51], 'foliation': [53], 'family': [57], 'outgoing': [59], 'light': [60], 'cones,': [61], 'emanating': [62], 'regular': [65], 'center,': [66], 'terminating': [68], 'at': [69, 111, 146, 194], 'future': [70, 112, 147], 'null': [71, 113, 148, 178], 'infinity.': [72], 'Such': [73], 'coordinate': [75], 'system': [76], 'is': [77], 'well': [78], 'adapted': [79], 'study': [82], 'interesting': [84], 'dynamical': [85], 'spacetimes': [86], 'relativistic': [88], 'astrophysics': [89], 'such': [90], 'as': [91], 'neutron': [96], 'star': [97], 'formation.': [98], 'Perhaps': [99], 'most': [100], 'importantly': [101], 'this': [102], 'procedure': [103], 'allows': [104], 'extraction': [107], 'waves': [110], 'infinity,': [114], 'along': [115], 'with': [116], 'commonly': [118], 'used': [119], 'quadrupole': [120, 158, 174], 'formalism': [121], 'wave': [125, 132, 186, 191], 'extraction.': [126], 'concerning': [129], 'signals': [133, 192], 'show': [134, 196], 'noticeable': [135], 'disagreement': [136], 'when': [137], 'those': [138], 'are': [139], 'extracted': [140, 193], 'by': [141, 155], 'computing': [142], 'Bondi': [144, 189], 'news': [145], 'infinity': [149, 195], 'one': [152], 'hand': [153], 'using': [156], 'formula': [159, 175], 'other': [162], 'hand.': [163], 'have': [165], 'strong': [167], 'indication': [168], 'that': [169], 'setup': [172], 'cone': [179], 'does': [180], 'not': [181], 'lead': [182], 'physical': [184], 'signals.': [187], 'The': [188], 'typical': [197], 'oscillation': [198], 'frequencies': [199], 'about': [201], '0.5': [202], 'kHz.': [203]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1981857259', 'counts_by_year': [{'year': 2024, 'cited_by_count': 3}, {'year': 2023, 'cited_by_count': 2}, {'year': 2022, 'cited_by_count': 1}, {'year': 2019, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 2}, {'year': 2016, 'cited_by_count': 2}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 21}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2025-01-08T09:04:05.219205', 'created_date': '2016-06-24'}