{"id":"https://openalex.org/W7169760201","doi":"https://doi.org/10.3847/1538-4357/aeab8b","title":"Eccentricity as a Magnifying Glass: Precision Population Inference Enabled by Eccentric Neutron Star\u2013Black Hole Mergers","display_name":"Eccentricity as a Magnifying Glass: Precision Population Inference Enabled by Eccentric Neutron Star\u2013Black Hole Mergers","publication_year":2026,"publication_date":"2026-11-02","ids":{"openalex":"https://openalex.org/W7169760201","doi":"https://doi.org/10.3847/1538-4357/aeab8b"},"language":"en","primary_location":{"id":"doi:10.3847/1538-4357/aeab8b","doi":"https://doi.org/10.3847/1538-4357/aeab8b","is_oa":true,"landing_page_url":"https://doi.org/10.3847/1538-4357/aeab8b","pdf_url":"https://iopscience.iop.org/article/10.3847/1538-4357/aeab8b/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,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-a","jufo-1","ki-jl-1","norway-2","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Astrophysical Journal","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["arxiv","crossref","datacite","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://iopscience.iop.org/article/10.3847/1538-4357/aeab8b/pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5099230487","display_name":"Alberto Salvarese","orcid":"https://orcid.org/0000-0001-9653-1778","observed_orcids":["https://orcid.org/0000-0001-9653-1778"]},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Alberto Salvarese","raw_affiliation_strings":["The University of Texas at Austin"],"raw_orcid":"https://orcid.org/0000-0001-9653-1778","affiliations":[{"raw_affiliation_string":"The University of Texas at Austin","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5121521587","display_name":"Hsin-Yu Chen","orcid":"https://orcid.org/0000-0001-5403-3762","observed_orcids":["https://orcid.org/0000-0001-5403-3762"]},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hsin-Yu Chen","raw_affiliation_strings":["The University of Texas at Austin"],"raw_orcid":"https://orcid.org/0000-0001-5403-3762","affiliations":[{"raw_affiliation_string":"The University of Texas at Austin","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012936916","display_name":"Aaron Zimmerman","orcid":"https://orcid.org/0000-0002-7453-6372","observed_orcids":["https://orcid.org/0000-0002-7453-6372"]},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Aaron Zimmerman","raw_affiliation_strings":["The University of Texas at Austin"],"raw_orcid":"https://orcid.org/0000-0002-7453-6372","affiliations":[{"raw_affiliation_string":"The University of Texas at Austin","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102996681","display_name":"Snehal Tibrewal","orcid":"https://orcid.org/0000-0003-4159-8291","observed_orcids":["https://orcid.org/0000-0003-4159-8291"]},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Snehal Tibrewal","raw_affiliation_strings":["The University of Texas at Austin"],"raw_orcid":"https://orcid.org/0000-0003-4159-8291","affiliations":[{"raw_affiliation_string":"The University of Texas at Austin","institution_ids":["https://openalex.org/I86519309"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I86519309"],"apc_list":{"value":4499,"currency":"USD","value_usd":4499},"apc_paid":{"value":4499,"currency":"USD","value_usd":4499},"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.51894134,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"1011","issue":"2","first_page":"156","last_page":"156"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10463","display_name":"Pulsars and Gravitational Waves Research","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/T10463","display_name":"Pulsars and Gravitational Waves Research","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/T11323","display_name":"Gamma-ray bursts and supernovae","score":9.999999747378752e-05,"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":9.999999747378752e-05,"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/black-hole-neutron-star-mergers","display_name":"neutron star-black hole mergers","score":0.9459999799728394},{"id":"https://openalex.org/keywords/orbital-eccentricity","display_name":"orbital eccentricity","score":0.878000020980835},{"id":"https://openalex.org/keywords/gw200105","display_name":"GW200105","score":0.9100000262260437},{"id":"https://openalex.org/keywords/effective-spin-parameter","display_name":"effective spin parameter","score":0.9100000262260437},{"id":"https://openalex.org/keywords/spin-orbit-misalignment","display_name":"spin-orbit misalignment","score":0.8769999742507935},{"id":"https://openalex.org/keywords/neutron-star-mass-distribution","display_name":"neutron star mass distribution","score":0.8190000057220459},{"id":"https://openalex.org/keywords/black-hole-mass-distribution","display_name":"black hole mass distribution","score":0.9739999771118164},{"id":"https://openalex.org/keywords/metallicity-dependence","display_name":"metallicity dependence","score":0.8519999980926514},{"id":"https://openalex.org/keywords/dynamical-formation","display_name":"dynamical formation","score":0.7580000162124634},{"id":"https://openalex.org/keywords/isolated-binary-evolution","display_name":"isolated binary evolution","score":0.6859999895095825}],"concepts":[{"id":"https://openalex.org/C190538878","wikidata":"https://www.wikidata.org/wiki/Q50013","display_name":"Eccentricity (behavior)","level":2,"score":0.8450000286102295},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.7206000089645386},{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.6682000160217285},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.6069999933242798},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.5810999870300293},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.5356000065803528},{"id":"https://openalex.org/C152568617","wikidata":"https://www.wikidata.org/wiki/Q2348","display_name":"Neutron","level":2,"score":0.487199991941452},{"id":"https://openalex.org/C134222618","wikidata":"https://www.wikidata.org/wiki/Q2713132","display_name":"Mass distribution","level":3,"score":0.45080000162124634},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.43070000410079956},{"id":"https://openalex.org/C110121322","wikidata":"https://www.wikidata.org/wiki/Q865811","display_name":"Distribution (mathematics)","level":2,"score":0.367900013923645},{"id":"https://openalex.org/C186399060","wikidata":"https://www.wikidata.org/wiki/Q959962","display_name":"Diagram","level":2,"score":0.364300012588501},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.3605000078678131},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.35019999742507935},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.335999995470047},{"id":"https://openalex.org/C73586568","wikidata":"https://www.wikidata.org/wiki/Q2600211","display_name":"Parameter space","level":2,"score":0.29760000109672546},{"id":"https://openalex.org/C42704618","wikidata":"https://www.wikidata.org/wiki/Q910917","display_name":"Spin (aerodynamics)","level":2,"score":0.29159998893737793},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.2867000102996826},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.2791999876499176},{"id":"https://openalex.org/C100784341","wikidata":"https://www.wikidata.org/wiki/Q1340491","display_name":"Eccentric","level":2,"score":0.2777000069618225},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2750999927520752},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.26080000400543213},{"id":"https://openalex.org/C149629883","wikidata":"https://www.wikidata.org/wiki/Q660926","display_name":"Fraction (chemistry)","level":2,"score":0.25769999623298645}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.3847/1538-4357/aeab8b","doi":"https://doi.org/10.3847/1538-4357/aeab8b","is_oa":true,"landing_page_url":"https://doi.org/10.3847/1538-4357/aeab8b","pdf_url":"https://iopscience.iop.org/article/10.3847/1538-4357/aeab8b/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,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-a","jufo-1","ki-jl-1","norway-2","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Astrophysical Journal","raw_type":"journal-article"},{"id":"pmh:oai:arXiv.org:2607.16136","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2607.16136","pdf_url":"https://arxiv.org/pdf/2607.16136","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"pmh:oai:doaj.org/article:6c412976d53f4e00978fe82c1e68e85a","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/6c412976d53f4e00978fe82c1e68e85a","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"The Astrophysical Journal, Vol 1011, Iss 2, p 156 (2026)","raw_type":"article"},{"id":"doi:10.48550/arxiv.2607.16136","doi":"https://doi.org/10.48550/arxiv.2607.16136","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.16136","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.3847/1538-4357/aeab8b","doi":"https://doi.org/10.3847/1538-4357/aeab8b","is_oa":true,"landing_page_url":"https://doi.org/10.3847/1538-4357/aeab8b","pdf_url":"https://iopscience.iop.org/article/10.3847/1538-4357/aeab8b/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,"listed_in":["anvur-scientific","cwts-core","doaj","dongbi-a","jufo-1","ki-jl-1","norway-2","oarl","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320083","host_organization_name":"IOP Publishing","host_organization_lineage":["https://openalex.org/P4310320083","https://openalex.org/P4310311669"],"host_organization_lineage_names":["IOP Publishing","Institute of Physics"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Astrophysical Journal","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G1231078981","display_name":"The Operation and Maintenance of the Laser Interferometer Gravitational Wave Observatory (LIGO)","funder_award_id":"0757058","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G2309359476","display_name":"The Construction of the Advanced Laser Interferometer Gravitational Wave Observatory (AdvLIGO)","funder_award_id":"0823459","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G2873408785","display_name":null,"funder_award_id":"DE-SC0025296","funder_id":"https://openalex.org/F4320306084","funder_display_name":"U.S. Department of Energy"},{"id":"https://openalex.org/G3511549847","display_name":"Gravitational Wave Data Analysis: Parameter Inference and Black Hole Ringdown","funder_award_id":"2308833","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G6802381840","display_name":"Uncovering the Mystery of the Universe's Expansion Rate with Gravitational-Wave Observations","funder_award_id":"2308752","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G8361907296","display_name":"Compact Objects and Gravitational Radiation","funder_award_id":"2207780","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320306084","display_name":"U.S. Department of Energy","ror":"https://ror.org/01bj3aw27"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7169760201.pdf","grobid_xml":"https://content.openalex.org/works/W7169760201.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7140296110","https://openalex.org/W7024219661","https://openalex.org/W4417529973","https://openalex.org/W7169780053","https://openalex.org/W4402270140","https://openalex.org/W4414903458","https://openalex.org/W4410207642","https://openalex.org/W4416977918","https://openalex.org/W4416623185","https://openalex.org/W7161713127"],"abstract_inverted_index":{"Abstract":[0],"The":[1],"formation":[2,55,103],"history":[3],"of":[4,10,40,68,101,110,120,135,191,220],"compact":[5],"binary":[6,22],"systems":[7,121],"remains":[8],"one":[9],"the":[11,41,65,74,99,111,118,132,151,176,189,206,218],"key":[12],"open":[13],"questions":[14],"in":[15,150],"astrophysics.":[16],"Theoretical":[17],"studies":[18],"generally":[19],"favor":[20],"isolated":[21],"evolution":[23],"for":[24,122,131,145,167,211],"neutron":[25,158],"star\u2013black":[26],"hole":[27],"(NSBH)":[28],"systems,":[29],"which":[30,123],"tends":[31],"to":[32],"produce":[33],"nearly":[34],"circular":[35,84],"orbits.":[36],"However,":[37],"recent":[38],"analyses":[39],"gravitational-wave":[42],"event":[43,139],"GW200105":[44],"indicate":[45],"that":[46,53,64,107,178,205],"its":[47],"source":[48],"has":[49,61],"measurable":[50],"eccentricity,":[51],"suggesting":[52],"alternative":[54],"channels":[56,213],"may":[57],"also":[58],"contribute.":[59],"It":[60],"been":[62],"shown":[63],"intrinsic":[66],"parameters":[67],"eccentric":[69,142],"NSBH":[70,102,143],"mergers,":[71],"such":[72,93],"as":[73],"component":[75],"masses":[76],"and":[77,174,185],"spins,":[78],"are":[79],"much":[80],"better":[81,164],"measured":[82],"than":[83],"mergers":[85],"with":[86],"LIGO\u2013Virgo\u2013KAGRA":[87],"(LVK)":[88],"observatories.":[89],"We":[90,105],"explore":[91],"how":[92],"eccentricity-enhanced":[94,200],"parameter":[95,114],"measurements":[96,109,162],"can":[97,126,179,214],"affect":[98],"inference":[100],"channels.":[104],"find":[106],"sharper":[108],"effective":[112],"spin":[113],"\u03c7":[115],"eff":[116],"increase":[117],"fraction":[119],"negative":[124],"values":[125],"be":[127,180,215],"confidently":[128],"identified,":[129],"allowing":[130],"clear":[133],"measurement":[134],"a":[136,192],"spin\u2013orbit":[137],"misaligned":[138],"every":[140],"\u223c2.5":[141],"detections":[144],"an":[146],"isotropically":[147],"distributed":[148],"population":[149],"fifth":[152],"LVK":[153],"observing":[154],"run":[155],"(O5).":[156],"Improved":[157],"star":[159],"(NS)":[160],"mass":[161,169,195],"provide":[163],"constraining":[165],"power":[166],"NS":[168],"distributions,":[170],"potentially":[171],"revealing":[172],"structure":[173],"tightening":[175],"bounds":[177],"drawn":[181],"on":[182],"their":[183],"upper":[184],"lower":[186],"masses.":[187],"Similarly,":[188],"recovery":[190],"metallicity-dependent":[193],"BH":[194],"distribution":[196,210],"is":[197],"improved":[198],"by":[199,217],"measurements.":[201],"Finally,":[202],"we":[203],"show":[204],"proposed":[207],"population-level":[208],"eccentricity":[209],"dynamical-formation":[212],"tested":[216],"end":[219],"O5.":[221]},"counts_by_year":[],"updated_date":"2026-11-05T12:25:35.769452","created_date":"2026-07-21T00:00:00"}
