Thermal emission and line profiles from magnetized accretion disks
- Autores
- Ranea Sandoval, Ignacio Francisco; García, Federico
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Observations of X-ray binary systems provide strong evidences of the existence of compact objects too massive to be explained by current neutron star models. When these systems are in the thermal (high/soft) state their emission spectra in the 0.1 − 5 keV range can be modeled by means of the thermal radiation of an accretion disk formed around super-compact objects. The profile of the fluorescent iron line is useful to get insight related with the nature of the compact object. In this work we developed a numerical scheme able to calculate thermal spectra of magnetized Page-Thorne accretion disks formed around both rotating black holes and naked singularities as seen by an arbitrary distant observer. We incorporated two different magnetic field configurations: uniform and dipolar, using a perturbative scheme in the coupling constant between matter and magnetic field. Under the same assumptions we obtained observed synthetic line profiles of the 6.4 keV iron line. We showthat the presence of an externalmagnetic field produces potentially observable modifications on both the thermal energy spectrum and fluorescent iron line profile.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
Page-Thorne accretion disks
thermal spectra
external magnetic field - 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:10915/165285
Ver los metadatos del registro completo
id |
SEDICI_69cfd932229c448f097705086e4c124d |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/165285 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Thermal emission and line profiles from magnetized accretion disksRanea Sandoval, Ignacio FranciscoGarcía, FedericoCiencias AstronómicasPage-Thorne accretion disksthermal spectraexternal magnetic fieldObservations of X-ray binary systems provide strong evidences of the existence of compact objects too massive to be explained by current neutron star models. When these systems are in the thermal (high/soft) state their emission spectra in the 0.1 − 5 keV range can be modeled by means of the thermal radiation of an accretion disk formed around super-compact objects. The profile of the fluorescent iron line is useful to get insight related with the nature of the compact object. In this work we developed a numerical scheme able to calculate thermal spectra of magnetized Page-Thorne accretion disks formed around both rotating black holes and naked singularities as seen by an arbitrary distant observer. We incorporated two different magnetic field configurations: uniform and dipolar, using a perturbative scheme in the coupling constant between matter and magnetic field. Under the same assumptions we obtained observed synthetic line profiles of the 6.4 keV iron line. We showthat the presence of an externalmagnetic field produces potentially observable modifications on both the thermal energy spectrum and fluorescent iron line profile.Facultad de Ciencias Astronómicas y Geofísicas2014-04info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdf223-226http://sedici.unlp.edu.ar/handle/10915/165285enginfo:eu-repo/semantics/altIdentifier/isbn/978-987-24948-2-7info: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:UNLP2025-09-29T11:43:50Zoai:sedici.unlp.edu.ar:10915/165285Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:43:50.959SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Thermal emission and line profiles from magnetized accretion disks |
title |
Thermal emission and line profiles from magnetized accretion disks |
spellingShingle |
Thermal emission and line profiles from magnetized accretion disks Ranea Sandoval, Ignacio Francisco Ciencias Astronómicas Page-Thorne accretion disks thermal spectra external magnetic field |
title_short |
Thermal emission and line profiles from magnetized accretion disks |
title_full |
Thermal emission and line profiles from magnetized accretion disks |
title_fullStr |
Thermal emission and line profiles from magnetized accretion disks |
title_full_unstemmed |
Thermal emission and line profiles from magnetized accretion disks |
title_sort |
Thermal emission and line profiles from magnetized accretion disks |
dc.creator.none.fl_str_mv |
Ranea Sandoval, Ignacio Francisco García, Federico |
author |
Ranea Sandoval, Ignacio Francisco |
author_facet |
Ranea Sandoval, Ignacio Francisco García, Federico |
author_role |
author |
author2 |
García, Federico |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Page-Thorne accretion disks thermal spectra external magnetic field |
topic |
Ciencias Astronómicas Page-Thorne accretion disks thermal spectra external magnetic field |
dc.description.none.fl_txt_mv |
Observations of X-ray binary systems provide strong evidences of the existence of compact objects too massive to be explained by current neutron star models. When these systems are in the thermal (high/soft) state their emission spectra in the 0.1 − 5 keV range can be modeled by means of the thermal radiation of an accretion disk formed around super-compact objects. The profile of the fluorescent iron line is useful to get insight related with the nature of the compact object. In this work we developed a numerical scheme able to calculate thermal spectra of magnetized Page-Thorne accretion disks formed around both rotating black holes and naked singularities as seen by an arbitrary distant observer. We incorporated two different magnetic field configurations: uniform and dipolar, using a perturbative scheme in the coupling constant between matter and magnetic field. Under the same assumptions we obtained observed synthetic line profiles of the 6.4 keV iron line. We showthat the presence of an externalmagnetic field produces potentially observable modifications on both the thermal energy spectrum and fluorescent iron line profile. Facultad de Ciencias Astronómicas y Geofísicas |
description |
Observations of X-ray binary systems provide strong evidences of the existence of compact objects too massive to be explained by current neutron star models. When these systems are in the thermal (high/soft) state their emission spectra in the 0.1 − 5 keV range can be modeled by means of the thermal radiation of an accretion disk formed around super-compact objects. The profile of the fluorescent iron line is useful to get insight related with the nature of the compact object. In this work we developed a numerical scheme able to calculate thermal spectra of magnetized Page-Thorne accretion disks formed around both rotating black holes and naked singularities as seen by an arbitrary distant observer. We incorporated two different magnetic field configurations: uniform and dipolar, using a perturbative scheme in the coupling constant between matter and magnetic field. Under the same assumptions we obtained observed synthetic line profiles of the 6.4 keV iron line. We showthat the presence of an externalmagnetic field produces potentially observable modifications on both the thermal energy spectrum and fluorescent iron line profile. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04 |
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/10915/165285 |
url |
http://sedici.unlp.edu.ar/handle/10915/165285 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/isbn/978-987-24948-2-7 |
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 223-226 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1844616306123341824 |
score |
13.070432 |