{"id":"https://openalex.org/W7214018775","doi":"https://doi.org/10.48550/arxiv.2609.22873","title":"Dark matter self-annihilation as a hidden energy source in white dwarfs","display_name":"Dark matter self-annihilation as a hidden energy source in white dwarfs","publication_year":2026,"publication_date":"2026-09-19","ids":{"openalex":"https://openalex.org/W7214018775","doi":"https://doi.org/10.48550/arxiv.2609.22873"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.22873","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.22873","pdf_url":"https://arxiv.org/pdf/2609.22873","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/2609.22873","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5152485545","display_name":"Alvin Cheuk-Nam Chu","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chu, Alvin Cheuk-Nam","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5152487249","display_name":"Cheuk-Man Yiu","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yiu, Cheuk-Man","raw_affiliation_strings":["Department of Physics and"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5152489579","display_name":"Ching-Hui Lam","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Lam, Ching-Hui","raw_affiliation_strings":["Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5152490710","display_name":"Peter Siu-Hei Cheung","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Cheung, Peter Siu-Hei","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5152458685","display_name":"Fong-Ching Ho","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Ho, Fong-Ching","raw_affiliation_strings":["Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5134443338","display_name":"Ming-chung Chu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Chu, Ming-chung","raw_affiliation_strings":["Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Physics and Institute of Theoretical Physics , The Chinese University of Hong Kong , Shatin , N .T. , Hong Kong S.A.R. , China","institution_ids":["https://openalex.org/I177725633"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":1,"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/T11090","display_name":"Dark Matter and Cosmic Phenomena","score":0.9214000105857849,"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/T11090","display_name":"Dark Matter and Cosmic Phenomena","score":0.9214000105857849,"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/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.056299999356269836,"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":0.007300000172108412,"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/dark-matter-annihilation","display_name":"dark matter annihilation","score":0.9449999928474426},{"id":"https://openalex.org/keywords/white-dwarfs","display_name":"white dwarfs","score":0.996999979019165},{"id":"https://openalex.org/keywords/mass-radius-relation","display_name":"mass-radius relation","score":0.8220000267028809},{"id":"https://openalex.org/keywords/dark-matter-admixture","display_name":"dark matter admixture","score":0.6349999904632568},{"id":"https://openalex.org/keywords/thermal-diffusion","display_name":"thermal diffusion","score":0.6740000247955322},{"id":"https://openalex.org/keywords/effective-temperature","display_name":"effective temperature","score":0.949999988079071},{"id":"https://openalex.org/keywords/dark-matter-detection","display_name":"dark matter detection","score":0.6869999766349792}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.8546000123023987},{"id":"https://openalex.org/C197445014","wikidata":"https://www.wikidata.org/wiki/Q5871","display_name":"White dwarf","level":3,"score":0.8251000046730042},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.8019000291824341},{"id":"https://openalex.org/C12287442","wikidata":"https://www.wikidata.org/wiki/Q105902","display_name":"Luminosity","level":3,"score":0.5916000008583069},{"id":"https://openalex.org/C159249277","wikidata":"https://www.wikidata.org/wiki/Q79925","display_name":"Dark matter","level":2,"score":0.5156000256538391},{"id":"https://openalex.org/C134853933","wikidata":"https://www.wikidata.org/wiki/Q208641","display_name":"Hydrostatic equilibrium","level":2,"score":0.5012000203132629},{"id":"https://openalex.org/C2778517922","wikidata":"https://www.wikidata.org/wiki/Q7140482","display_name":"Particle (ecology)","level":2,"score":0.4302999973297119},{"id":"https://openalex.org/C116628846","wikidata":"https://www.wikidata.org/wiki/Q899138","display_name":"Mass fraction","level":2,"score":0.3971000015735626},{"id":"https://openalex.org/C49674690","wikidata":"https://www.wikidata.org/wiki/Q1457669","display_name":"Massive compact halo object","level":4,"score":0.3571999967098236},{"id":"https://openalex.org/C2777727622","wikidata":"https://www.wikidata.org/wiki/Q5251772","display_name":"Degeneracy (biology)","level":2,"score":0.3416000008583069},{"id":"https://openalex.org/C23840281","wikidata":"https://www.wikidata.org/wiki/Q5976","display_name":"Black dwarf","level":4,"score":0.3050000071525574},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.302700012922287},{"id":"https://openalex.org/C13565188","wikidata":"https://www.wikidata.org/wiki/Q854050","display_name":"Effective temperature","level":3,"score":0.30219998955726624},{"id":"https://openalex.org/C2780397496","wikidata":"https://www.wikidata.org/wiki/Q2923525","display_name":"Massive particle","level":3,"score":0.2989000082015991},{"id":"https://openalex.org/C204530211","wikidata":"https://www.wikidata.org/wiki/Q752823","display_name":"Thermal","level":2,"score":0.2946000099182129},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.27799999713897705},{"id":"https://openalex.org/C60056205","wikidata":"https://www.wikidata.org/wiki/Q691914","display_name":"Opacity","level":2,"score":0.275299996137619},{"id":"https://openalex.org/C155281189","wikidata":"https://www.wikidata.org/wiki/Q3518150","display_name":"Tensor (intrinsic definition)","level":2,"score":0.2671000063419342},{"id":"https://openalex.org/C129716092","wikidata":"https://www.wikidata.org/wiki/Q912130","display_name":"Internal heating","level":2,"score":0.25940001010894775},{"id":"https://openalex.org/C69357855","wikidata":"https://www.wikidata.org/wiki/Q163214","display_name":"Diffusion","level":2,"score":0.2508000135421753}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.22873","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.22873","pdf_url":"https://arxiv.org/pdf/2609.22873","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.2609.22873","doi":"https://doi.org/10.48550/arxiv.2609.22873","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.22873","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":"pmh:oai:arXiv.org:2609.22873","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.22873","pdf_url":"https://arxiv.org/pdf/2609.22873","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/G6910282372","display_name":null,"funder_award_id":"101096243","funder_id":"https://openalex.org/F4320320300","funder_display_name":"European Commission"}],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320324316","display_name":"Klaus Tschira Stiftung","ror":"https://ror.org/052jep661"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7214018775.pdf","grobid_xml":"https://content.openalex.org/works/W7214018775.grobid-xml"},"referenced_works_count":8,"referenced_works":["https://openalex.org/W1532082951","https://openalex.org/W2032776777","https://openalex.org/W2080600720","https://openalex.org/W2529149646","https://openalex.org/W3158983426","https://openalex.org/W4246808147","https://openalex.org/W4293036655","https://openalex.org/W7097470318"],"related_works":["https://openalex.org/W4390810348","https://openalex.org/W7155561725","https://openalex.org/W3048352456","https://openalex.org/W4415898210","https://openalex.org/W4414880839","https://openalex.org/W1528767911","https://openalex.org/W4413781046","https://openalex.org/W2051087553","https://openalex.org/W4392954850","https://openalex.org/W3090382100"],"abstract_inverted_index":{"White":[0],"dwarfs":[1,41],"(WDs)":[2],"are":[3,16],"compact":[4],"remnants":[5],"of":[6,53,67,77,101,151],"stars,":[7],"supported":[8],"by":[9,63,163],"electron":[10],"degeneracy":[11],"pressure,":[12],"and":[13,29,81,95,111,134,137,171,193],"their":[14,204],"structures":[15],"generally":[17],"considered":[18],"to":[19,58],"be":[20,160,189],"well":[21,116],"understood.":[22],"Significant":[23],"discrepancies":[24],"exist":[25],"between":[26],"the":[27,51,65,75,91,102,118,126,143,149,155,177],"theoretical":[28],"observed":[30,152,205],"white":[31,40],"dwarf":[32],"mass-radius":[33],"(MR)":[34],"relations,":[35],"especially":[36],"for":[37,90,130,162,203],"hot":[38],"Q-branch":[39],"with":[42,142,167],"unexplained":[43],"heating":[44,199],"sources.":[45],"In":[46],"this":[47],"study,":[48],"we":[49],"explore":[50],"potential":[52],"WDs":[54,187],"as":[55,99,115,117],"a":[56],"portal":[57],"dark":[59],"matter":[60],"(DM)":[61],"physics":[62],"investigating":[64],"effect":[66],"self-annihilating":[68],"DM":[69,103,139,191,194],"(SADM)":[70],"admixed":[71,166],"in":[72,154,200],"WDs,":[73,201],"solving":[74],"set":[76],"two-fluid":[78],"hydrostatic":[79],"equilibrium":[80],"heat":[82],"diffusion":[83],"equations":[84],"self-consistently.":[85],"We":[86,123,146],"obtain":[87],"empirical":[88],"formulae":[89],"WD":[92,127,156],"luminosity":[93],"$L$":[94],"effective":[96],"temperature":[97],"$T_\\text{eff}$":[98],"functions":[100],"mass":[104,113,121],"fraction":[105],"$f_d$,":[106,133],"annihilation":[107],"cross":[108,180],"section":[109],"$\\langle\u03c3v\\rangle$,":[110],"particle":[112,140],"$m_\u03c7$,":[114],"WD's":[119],"total":[120],"$M_t$.":[122],"also":[124],"compare":[125],"MR":[128,157],"relations":[129],"various":[131],"$L$,":[132],"both":[135],"Fermionic":[136],"Bosonic":[138],"statistics,":[141],"observational":[144],"data.":[145],"show":[147],"that":[148,186],"majority":[150],"deviations":[153],"relation":[158],"can":[159,188],"accounted":[161],"having":[164],"SADM":[165],"$f_d":[168],"\\le":[169],"10^{-5}$":[170],"$\\langle\u03c3v\\rangle":[172],"\\ll":[173],"3\\times10^{-26}$":[174],"$\\text{cm}^3$":[175],"$\\text{s}^{-1}$,":[176],"thermal":[178],"relic":[179],"section.":[181],"Therefore,":[182],"our":[183],"results":[184],"suggest":[185],"sensitive":[190],"detectors,":[192],"self-annihilation":[195],"could":[196],"provide":[197],"additional":[198],"accounting":[202],"extra":[206],"luminosities.":[207]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-23T00:00:00"}