The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture
- Autores
- Ranea Sandoval, Ignacio Francisco; García, Federico; Johannsen, Tim
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- In general relativity, black holes are uniquely described by the Kerr metric and, according to the cosmic censorship conjecture, curvature singularities are always hidden behind an event horizon. We study the effect of an external magnetic field on the observed light curves of orbiting hot spots in thin accretion disks in Kerr spacetimes with (black holes) and without (super-extreme solutions) horizons. We employ a ray-tracing algorithm to calculate the light curves and power spectra of such hot spots for uniform and dipolar magnetic field configurations and show that the presence of a dipolar magnetic field produces potentially observable signatures which might be useful to probe the nature of compact objects and to test the cosmic censorship conjecture.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
hot spot
magnetized accretion disk - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/168111
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The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjectureRanea Sandoval, Ignacio FranciscoGarcía, FedericoJohannsen, TimCiencias Astronómicashot spotmagnetized accretion diskIn general relativity, black holes are uniquely described by the Kerr metric and, according to the cosmic censorship conjecture, curvature singularities are always hidden behind an event horizon. We study the effect of an external magnetic field on the observed light curves of orbiting hot spots in thin accretion disks in Kerr spacetimes with (black holes) and without (super-extreme solutions) horizons. We employ a ray-tracing algorithm to calculate the light curves and power spectra of such hot spots for uniform and dipolar magnetic field configurations and show that the presence of a dipolar magnetic field produces potentially observable signatures which might be useful to probe the nature of compact objects and to test the cosmic censorship conjecture.Facultad de Ciencias Astronómicas y Geofísicas2015-10info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf171-174http://sedici.unlp.edu.ar/handle/10915/168111enginfo:eu-repo/semantics/altIdentifier/isbn/978-987-24948-3-4info:eu-repo/semantics/reference/url/https://sedici.unlp.edu.ar/handle/10915/167830info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:44:50Zoai:sedici.unlp.edu.ar:10915/168111Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:44:50.993SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
title |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
spellingShingle |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture Ranea Sandoval, Ignacio Francisco Ciencias Astronómicas hot spot magnetized accretion disk |
title_short |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
title_full |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
title_fullStr |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
title_full_unstemmed |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
title_sort |
The imprint of hot spots on magnetized Kerr accretion disks: probing the cosmic censorship conjecture |
dc.creator.none.fl_str_mv |
Ranea Sandoval, Ignacio Francisco García, Federico Johannsen, Tim |
author |
Ranea Sandoval, Ignacio Francisco |
author_facet |
Ranea Sandoval, Ignacio Francisco García, Federico Johannsen, Tim |
author_role |
author |
author2 |
García, Federico Johannsen, Tim |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas hot spot magnetized accretion disk |
topic |
Ciencias Astronómicas hot spot magnetized accretion disk |
dc.description.none.fl_txt_mv |
In general relativity, black holes are uniquely described by the Kerr metric and, according to the cosmic censorship conjecture, curvature singularities are always hidden behind an event horizon. We study the effect of an external magnetic field on the observed light curves of orbiting hot spots in thin accretion disks in Kerr spacetimes with (black holes) and without (super-extreme solutions) horizons. We employ a ray-tracing algorithm to calculate the light curves and power spectra of such hot spots for uniform and dipolar magnetic field configurations and show that the presence of a dipolar magnetic field produces potentially observable signatures which might be useful to probe the nature of compact objects and to test the cosmic censorship conjecture. Facultad de Ciencias Astronómicas y Geofísicas |
description |
In general relativity, black holes are uniquely described by the Kerr metric and, according to the cosmic censorship conjecture, curvature singularities are always hidden behind an event horizon. We study the effect of an external magnetic field on the observed light curves of orbiting hot spots in thin accretion disks in Kerr spacetimes with (black holes) and without (super-extreme solutions) horizons. We employ a ray-tracing algorithm to calculate the light curves and power spectra of such hot spots for uniform and dipolar magnetic field configurations and show that the presence of a dipolar magnetic field produces potentially observable signatures which might be useful to probe the nature of compact objects and to test the cosmic censorship conjecture. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Objeto de conferencia http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/168111 |
url |
http://sedici.unlp.edu.ar/handle/10915/168111 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/isbn/978-987-24948-3-4 info:eu-repo/semantics/reference/url/https://sedici.unlp.edu.ar/handle/10915/167830 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf 171-174 |
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reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
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