{"id":"https://openalex.org/W7212181985","doi":"https://doi.org/10.48550/arxiv.2609.09284","title":"Ruling out matter-induced bumps in black-hole effective potentials","display_name":"Ruling out matter-induced bumps in black-hole effective potentials","publication_year":2026,"publication_date":"2026-09-08","ids":{"openalex":"https://openalex.org/W7212181985","doi":"https://doi.org/10.48550/arxiv.2609.09284"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2609.09284","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.09284","pdf_url":"https://arxiv.org/pdf/2609.09284","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/2609.09284","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5128839834","display_name":"Matteo Della Rocca","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Della Rocca, Matteo","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099040360","display_name":"Romeo Felice Rosato","orcid":"https://orcid.org/0009-0006-3942-7900","observed_orcids":["https://orcid.org/0009-0006-3942-7900"]},"institutions":[{"id":"https://openalex.org/I4210157426","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Roma I","ror":"https://ror.org/05eva6s33","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210157426"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Rosato, Romeo Felice","raw_affiliation_strings":["Dipartimento di Fisica , Sapienza Universit\u00e0 di Roma , Piazzale Aldo Moro 5 , 00185 , Roma , Italy","INFN , Sezione di Roma , Piazzale Aldo Moro 2 , 00185 , Roma , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica , Sapienza Universit\u00e0 di Roma , Piazzale Aldo Moro 5 , 00185 , Roma , Italy","institution_ids":["https://openalex.org/I861853513"]},{"raw_affiliation_string":"INFN , Sezione di Roma , Piazzale Aldo Moro 2 , 00185 , Roma , Italy","institution_ids":["https://openalex.org/I4210157426"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016911084","display_name":"Paolo Pani","orcid":"https://orcid.org/0000-0003-4443-1761","observed_orcids":["https://orcid.org/0000-0003-4443-1761"]},"institutions":[{"id":"https://openalex.org/I4210157426","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Roma I","ror":"https://ror.org/05eva6s33","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210157426"]},{"id":"https://openalex.org/I861853513","display_name":"Sapienza University of Rome","ror":"https://ror.org/02be6w209","country_code":"IT","type":"education","lineage":["https://openalex.org/I861853513"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pani, Paolo","raw_affiliation_strings":["Dipartimento di Fisica , Sapienza Universit\u00e0 di Roma , Piazzale Aldo Moro 5 , 00185 , Roma , Italy","INFN , Sezione di Roma , Piazzale Aldo Moro 2 , 00185 , Roma , Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Fisica , Sapienza Universit\u00e0 di Roma , Piazzale Aldo Moro 5 , 00185 , Roma , Italy","institution_ids":["https://openalex.org/I861853513"]},{"raw_affiliation_string":"INFN , Sezione di Roma , Piazzale Aldo Moro 2 , 00185 , Roma , Italy","institution_ids":["https://openalex.org/I4210157426"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":4,"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/T10025","display_name":"Black Holes and Theoretical Physics","score":0.6054999828338623,"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/T10025","display_name":"Black Holes and Theoretical Physics","score":0.6054999828338623,"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/T10744","display_name":"Astrophysical Phenomena and Observations","score":0.20239999890327454,"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":0.14869999885559082,"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/quasinormal-modes","display_name":"quasinormal modes","score":0.828000009059906},{"id":"https://openalex.org/keywords/spectral-instability","display_name":"spectral instability","score":0.5649999976158142},{"id":"https://openalex.org/keywords/anisotropic-fluid","display_name":"anisotropic fluid","score":0.9380000233650208},{"id":"https://openalex.org/keywords/light-rings","display_name":"light rings","score":0.9810000061988831},{"id":"https://openalex.org/keywords/black-hole-perturbations","display_name":"black hole perturbations","score":0.9079999923706055}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6693000197410583},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.42969998717308044},{"id":"https://openalex.org/C85725439","wikidata":"https://www.wikidata.org/wiki/Q466686","display_name":"Anisotropy","level":2,"score":0.4221000075340271},{"id":"https://openalex.org/C159249277","wikidata":"https://www.wikidata.org/wiki/Q79925","display_name":"Dark matter","level":2,"score":0.3869999945163727},{"id":"https://openalex.org/C45792457","wikidata":"https://www.wikidata.org/wiki/Q193907","display_name":"Matter wave","level":3,"score":0.36649999022483826},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.31869998574256897},{"id":"https://openalex.org/C33332235","wikidata":"https://www.wikidata.org/wiki/Q18362","display_name":"Theoretical physics","level":1,"score":0.31779998540878296},{"id":"https://openalex.org/C50341732","wikidata":"https://www.wikidata.org/wiki/Q880302","display_name":"Black hole (networking)","level":5,"score":0.2797999978065491},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.27639999985694885},{"id":"https://openalex.org/C3079626","wikidata":"https://www.wikidata.org/wiki/Q234881","display_name":"Quantum electrodynamics","level":1,"score":0.2639000117778778},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.2529999911785126},{"id":"https://openalex.org/C207821765","wikidata":"https://www.wikidata.org/wiki/Q405372","display_name":"Instability","level":2,"score":0.25279998779296875}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2609.09284","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.09284","pdf_url":"https://arxiv.org/pdf/2609.09284","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.2609.09284","doi":"https://doi.org/10.48550/arxiv.2609.09284","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2609.09284","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:2609.09284","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2609.09284","pdf_url":"https://arxiv.org/pdf/2609.09284","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":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7212181985.pdf","grobid_xml":"https://content.openalex.org/works/W7212181985.grobid-xml"},"referenced_works_count":36,"referenced_works":["https://openalex.org/W1547588180","https://openalex.org/W2010218176","https://openalex.org/W2131770312","https://openalex.org/W2288107502","https://openalex.org/W2935705955","https://openalex.org/W2991645385","https://openalex.org/W2993016707","https://openalex.org/W3005585565","https://openalex.org/W3016604559","https://openalex.org/W3037269817","https://openalex.org/W3163926893","https://openalex.org/W3184769210","https://openalex.org/W4221057111","https://openalex.org/W4304193714","https://openalex.org/W4313561912","https://openalex.org/W4321491696","https://openalex.org/W4321500746","https://openalex.org/W4385209494","https://openalex.org/W4386597718","https://openalex.org/W4388668251","https://openalex.org/W4389363556","https://openalex.org/W4400414426","https://openalex.org/W4403247199","https://openalex.org/W4403834913","https://openalex.org/W4405278811","https://openalex.org/W4406128343","https://openalex.org/W4414818252","https://openalex.org/W4415227229","https://openalex.org/W4415682901","https://openalex.org/W4416204891","https://openalex.org/W6884880931","https://openalex.org/W7077893727","https://openalex.org/W7147295520","https://openalex.org/W7162139320","https://openalex.org/W7164301293","https://openalex.org/W7213538726"],"related_works":["https://openalex.org/W4385683409","https://openalex.org/W7202138780","https://openalex.org/W4415263169","https://openalex.org/W4417223580","https://openalex.org/W7203725307","https://openalex.org/W4400414426","https://openalex.org/W4393924616","https://openalex.org/W4403247199","https://openalex.org/W4411087789","https://openalex.org/W7131150705"],"abstract_inverted_index":{"Matter":[0],"fields":[1],"localized":[2],"around":[3],"black":[4,38],"holes":[5],"can":[6],"produce":[7],"small":[8],"secondary":[9,48,79],"bumps":[10],"in":[11,61,81,95],"the":[12,43,62,68,82,89,96],"effective":[13,83],"potentials":[14],"governing":[15],"black-hole":[16],"perturbations,":[17],"potentially":[18],"leading":[19],"to":[20],"quasinormal-mode":[21],"spectral":[22],"instabilities":[23],"and":[24],"late-time":[25],"echoes.":[26],"Considering":[27],"physically":[28],"motivated":[29],"models":[30],"of":[31,45,91],"anisotropic":[32],"fluids":[33],"surrounding":[34],"a":[35,47,78],"spherically":[36],"symmetric":[37],"hole,":[39],"we":[40],"show":[41],"that":[42,67,77],"appearance":[44],"such":[46],"bump":[49,80],"is":[50],"accompanied":[51],"by":[52],"either":[53],"singular":[54],"matter":[55,70],"profiles":[56],"or":[57],"divergent":[58],"characteristic":[59],"speeds":[60],"fluid.":[63],"These":[64],"features":[65],"indicate":[66],"corresponding":[69],"configurations":[71],"are":[72],"unphysical.":[73],"We":[74],"further":[75],"demonstrate":[76],"potential":[84],"does":[85],"not":[86],"necessarily":[87],"imply":[88],"existence":[90],"additional":[92],"light":[93],"rings":[94],"spacetime.":[97]},"counts_by_year":[{"year":2026,"cited_by_count":4}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2026-09-11T00:00:00"}
