{"id":"https://openalex.org/W7214405997","doi":"https://doi.org/10.48550/arxiv.2609.27496","title":"Origin of the high-energy spectral cutoff in gamma-ray pulsar halos","display_name":"Origin of the high-energy spectral cutoff in gamma-ray pulsar halos","publication_year":2026,"publication_date":"2026-09-23","ids":{"openalex":"https://openalex.org/W7214405997","doi":"https://doi.org/10.48550/arxiv.2609.27496"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.27496","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.27496","pdf_url":"https://arxiv.org/pdf/2609.27496","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","is_traditional":true,"indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2609.27496","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101969577","display_name":"Qi-Ling Chen","orcid":"https://orcid.org/0009-0000-3321-5671","observed_orcids":["https://orcid.org/0009-0000-3321-5671"]},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I24185976","display_name":"Sichuan University","ror":"https://ror.org/011ashp19","country_code":"CN","type":"education","lineage":["https://openalex.org/I24185976"]},{"id":"https://openalex.org/I4210137180","display_name":"Institute of High Energy Physics","ror":"https://ror.org/03v8tnc06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137180"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chen, Qi-Ling","raw_affiliation_strings":["College of Physics , Sichuan University , Chengdu 610064 , P.R. China","State Key Laboratory of Particle Astrophysics , Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Physics , Sichuan University , Chengdu 610064 , P.R. China","institution_ids":["https://openalex.org/I24185976"]},{"raw_affiliation_string":"State Key Laboratory of Particle Astrophysics , Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , P.R. China","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210137180"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110966428","display_name":"Ming-Ming Kang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I24185976","display_name":"Sichuan University","ror":"https://ror.org/011ashp19","country_code":"CN","type":"education","lineage":["https://openalex.org/I24185976"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kang, Ming-Ming","raw_affiliation_strings":["College of Physics , Sichuan University , Chengdu 610064 , P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Physics , Sichuan University , Chengdu 610064 , P.R. China","institution_ids":["https://openalex.org/I24185976"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5152828756","display_name":"Kun Fang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"government","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210137180","display_name":"Institute of High Energy Physics","ror":"https://ror.org/03v8tnc06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210137180"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fang, Kun","raw_affiliation_strings":["State Key Laboratory of Particle Astrophysics , Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Particle Astrophysics , Institute of High Energy Physics , Chinese Academy of Sciences , Beijing 100049 , P.R. China","institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210137180"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5158746061","display_name":"Yi-Qing Guo","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Guo, Yi-Qing","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5103662247","display_name":"Chaowen Yang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I24185976","display_name":"Sichuan University","ror":"https://ror.org/011ashp19","country_code":"CN","type":"education","lineage":["https://openalex.org/I24185976"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang, Chao-Wen","raw_affiliation_strings":["College of Physics , Sichuan University , Chengdu 610064 , P.R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Physics , Sichuan University , Chengdu 610064 , P.R. China","institution_ids":["https://openalex.org/I24185976"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10818","display_name":"Astrophysics and Cosmic Phenomena","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T10818","display_name":"Astrophysics and Cosmic Phenomena","score":0.9990000128746033,"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/T11323","display_name":"Gamma-ray bursts and supernovae","score":0.0006000000284984708,"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/T10463","display_name":"Pulsars and Gravitational Waves Research","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/spectral-cutoff","display_name":"spectral cutoff","score":0.949999988079071},{"id":"https://openalex.org/keywords/pulsar-wind-nebula","display_name":"pulsar wind nebulae","score":0.8899999856948853},{"id":"https://openalex.org/keywords/diffusive-shock-acceleration","display_name":"diffusive shock acceleration","score":0.921999990940094},{"id":"https://openalex.org/keywords/termination-shock","display_name":"termination shock","score":0.859000027179718},{"id":"https://openalex.org/keywords/electron-acceleration","display_name":"electron acceleration","score":0.7599999904632568},{"id":"https://openalex.org/keywords/electron-diffusion-coefficient","display_name":"electron diffusion coefficient","score":0.859000027179718},{"id":"https://openalex.org/keywords/interstellar-medium","display_name":"interstellar medium","score":0.8080000281333923},{"id":"https://openalex.org/keywords/tev-gamma-rays","display_name":"TeV gamma rays","score":0.699999988079071}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.9108999967575073},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.8224999904632568},{"id":"https://openalex.org/C2778217198","wikidata":"https://www.wikidata.org/wiki/Q556977","display_name":"Cutoff","level":2,"score":0.7994999885559082},{"id":"https://openalex.org/C110363677","wikidata":"https://www.wikidata.org/wiki/Q4360","display_name":"Pulsar","level":2,"score":0.7192000150680542},{"id":"https://openalex.org/C184665706","wikidata":"https://www.wikidata.org/wiki/Q186310","display_name":"Halo","level":3,"score":0.6597999930381775},{"id":"https://openalex.org/C2781300812","wikidata":"https://www.wikidata.org/wiki/Q178061","display_name":"Shock (circulatory)","level":2,"score":0.49559998512268066},{"id":"https://openalex.org/C4839761","wikidata":"https://www.wikidata.org/wiki/Q212111","display_name":"Spectral line","level":2,"score":0.459199994802475},{"id":"https://openalex.org/C152822103","wikidata":"https://www.wikidata.org/wiki/Q7575207","display_name":"Spectral shape analysis","level":3,"score":0.41440001130104065},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.40799999237060547},{"id":"https://openalex.org/C168110828","wikidata":"https://www.wikidata.org/wiki/Q1331626","display_name":"Spectral density","level":2,"score":0.40529999136924744},{"id":"https://openalex.org/C2983668108","wikidata":"https://www.wikidata.org/wiki/Q280453","display_name":"Spectral analysis","level":3,"score":0.34150001406669617},{"id":"https://openalex.org/C117896860","wikidata":"https://www.wikidata.org/wiki/Q11376","display_name":"Acceleration","level":2,"score":0.33889999985694885},{"id":"https://openalex.org/C6142545","wikidata":"https://www.wikidata.org/wiki/Q1455881","display_name":"Cutoff frequency","level":2,"score":0.33469998836517334},{"id":"https://openalex.org/C68709404","wikidata":"https://www.wikidata.org/wiki/Q1134475","display_name":"Flux (metallurgy)","level":2,"score":0.33160001039505005},{"id":"https://openalex.org/C196939603","wikidata":"https://www.wikidata.org/wiki/Q41872","display_name":"Interstellar medium","level":3,"score":0.328000009059906},{"id":"https://openalex.org/C101991246","wikidata":"https://www.wikidata.org/wiki/Q5422078","display_name":"Extinction (optical mineralogy)","level":2,"score":0.3248000144958496},{"id":"https://openalex.org/C42061751","wikidata":"https://www.wikidata.org/wiki/Q2280060","display_name":"Spectral index","level":3,"score":0.31520000100135803},{"id":"https://openalex.org/C176641082","wikidata":"https://www.wikidata.org/wiki/Q2446767","display_name":"Spectral signature","level":2,"score":0.3102000057697296},{"id":"https://openalex.org/C70477161","wikidata":"https://www.wikidata.org/wiki/Q190688","display_name":"Shock wave","level":2,"score":0.30820000171661377},{"id":"https://openalex.org/C99844830","wikidata":"https://www.wikidata.org/wiki/Q102441924","display_name":"Scaling","level":2,"score":0.30469998717308044},{"id":"https://openalex.org/C139153390","wikidata":"https://www.wikidata.org/wiki/Q3142966","display_name":"Binary pulsar","level":4,"score":0.28529998660087585},{"id":"https://openalex.org/C147120987","wikidata":"https://www.wikidata.org/wiki/Q2225","display_name":"Electron","level":2,"score":0.26109999418258667},{"id":"https://openalex.org/C75183268","wikidata":"https://www.wikidata.org/wiki/Q7140491","display_name":"Particle acceleration","level":3,"score":0.26019999384880066},{"id":"https://openalex.org/C124967146","wikidata":"https://www.wikidata.org/wiki/Q3457898","display_name":"Spectral resolution","level":3,"score":0.2574999928474426},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.25609999895095825},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.251800000667572}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.27496","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.27496","pdf_url":"https://arxiv.org/pdf/2609.27496","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2609.27496","doi":"https://doi.org/10.48550/arxiv.2609.27496","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.27496","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":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2609.27496","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.27496","pdf_url":"https://arxiv.org/pdf/2609.27496","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":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G2458762372","display_name":null,"funder_award_id":"2024YFA1611402","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G3609449433","display_name":null,"funder_award_id":"12263004","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4067753292","display_name":null,"funder_award_id":"12393853","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5594357251","display_name":null,"funder_award_id":"12275279","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6625960585","display_name":null,"funder_award_id":"12333006)","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7214405997.pdf","grobid_xml":"https://content.openalex.org/works/W7214405997.grobid-xml"},"referenced_works_count":21,"referenced_works":["https://openalex.org/W1879704476","https://openalex.org/W2001229324","https://openalex.org/W2011255110","https://openalex.org/W2096712552","https://openalex.org/W2610288994","https://openalex.org/W3166175521","https://openalex.org/W3190932813","https://openalex.org/W3209062862","https://openalex.org/W4213164279","https://openalex.org/W4285036610","https://openalex.org/W4300961678","https://openalex.org/W4313261158","https://openalex.org/W4392352697","https://openalex.org/W4401830303","https://openalex.org/W4401955112","https://openalex.org/W4406778500","https://openalex.org/W4408683347","https://openalex.org/W4414739409","https://openalex.org/W4414992175","https://openalex.org/W4417004787","https://openalex.org/W7161727761"],"related_works":["https://openalex.org/W4226119162","https://openalex.org/W7161727761","https://openalex.org/W4393023490","https://openalex.org/W4392099299","https://openalex.org/W3097728835","https://openalex.org/W4409696888","https://openalex.org/W2963874313","https://openalex.org/W6991490680","https://openalex.org/W7097032104","https://openalex.org/W4295693357"],"abstract_inverted_index":{"The":[0,33],"spectra":[1],"of":[2,13,20,29,47,65,80,101,128,143,153],"gamma-ray":[3,103],"pulsar":[4,144],"halos":[5],"exhibit":[6],"a":[7,98],"clear":[8],"cutoff":[9,23,40,119,127],"feature":[10],"at":[11,95],"tens":[12],"TeV.":[14],"This":[15],"work":[16],"investigates":[17],"the":[18,21,26,30,39,42,48,62,66,71,81,84,89,106,112,125,129,133,140,149,154],"origin":[19],"spectral":[22,118,126,146,151],"by":[24],"interpreting":[25],"HAWC":[27],"data":[28],"Geminga":[31,130],"halo.":[32,131],"most":[34],"straightforward":[35],"interpretation":[36,79],"is":[37],"that":[38],"reflects":[41],"maximum":[43,72],"electron":[44,85],"acceleration":[45],"capability":[46],"central":[49],"PWN.":[50],"We":[51,74],"model":[52],"this":[53],"scenario":[54],"using":[55],"spherically":[56],"symmetric":[57],"diffusive":[58],"shock":[59,69],"acceleration,":[60],"where":[61],"upstream":[63],"scale":[64],"PWN":[67],"termination":[68],"limits":[70],"energy.":[73],"also":[75],"propose":[76],"an":[77,116],"alternative":[78],"cutoff:":[82],"if":[83],"diffusion":[86],"coefficient":[87],"in":[88],"surrounding":[90],"interstellar":[91],"medium":[92],"rises":[93],"rapidly":[94],"high":[96],"energies,":[97],"substantial":[99],"fraction":[100],"high-energy":[102],"flux":[104],"from":[105],"target":[107],"source":[108],"can":[109],"leak":[110],"outside":[111],"analysis":[113],"region,":[114],"producing":[115],"observed":[117],"effect.":[120],"Both":[121],"explanations":[122],"successfully":[123],"reproduce":[124],"Meanwhile,":[132],"two":[134],"scenarios":[135],"make":[136],"distinct":[137],"predictions":[138],"on":[139],"statistical":[141],"properties":[142],"halo":[145],"cutoffs":[147],"and":[148],"X-ray":[150],"features":[152],"corresponding":[155],"PWNe,":[156],"which":[157],"may":[158],"be":[159],"tested":[160],"through":[161],"further":[162],"observations.":[163]},"counts_by_year":[],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-26T00:00:00"}
