XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region

Autores
Sánchez Ayaso, Estrella; Combi, Jorge A.; Bocchino, F.; Albacete Colombo, Juan Facundo; López Santiago, J.; Martí, J.; Castro, E.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fil: Sánchez Ayaso, Estrella. Universidad de Jaén; España
Fil: Combi, Jorge A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto Argentino de Radioastronomia; Argentina
Fil: Bocchino, F. Istituto Nazionale Di Astrofisica; Italia
Fil: Albacete Colombo, Juan F. Universidad Nacional del Comahue; Argentina
Fil: López Santiago, J. Universidad Complutense de Madrid; España
Fil: Martí, J. Universidad de Jaén; España
Fil: Castro, E. Universidad de Jaén; España
Fil: Albacete Colombo, Juan F. Universidad Nacional de Río Negro; Argentina
Aims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant G272.2−3.2 in order to obtain important constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We report on combined XMM-Newton and Chandra images, median photon energy maps, silicon and sulfur equivalent width maps, and a spatially resolved spectral analysis for a set of regions of the remnant. Complementary radio and Hα observations, available in the literature, are also used to study the multi-wavelength connection of all detected emissions. Results. The X-ray morphology of the remnant displays an overall structure with an almost circular appearance and a centrally brightened hard region with a peculiar elongated hard structure oriented along the northwest-southeast direction of the central part. The X-ray spectral study of the regions shows distinct Kα emission-line features of metal elements, confirming the thermal origin of the emission. The X-ray spectra are well represented by an absorbed variable abundance non-equilibrium ionization thermal plasma model, which produces elevated abundances of Si, S, and Fe in the circular central region, typical of ejecta material. The values of abundances found in the central region of the supernova remnant favor a Type Ia progenitor for this remnant. The outer region shows abundances below the solar value, to be expected if the emission arises from the shocked interstellar medium. The relatively low ionization timescales suggest non-equilibrium ionization. We identify the location of the contact discontinuity. Its distance to the outer shock is higher than expected for expansion in a uniform media, which suggests that the remnant spent most of its time in more dense medium.
Materia
Ciencias Exactas y Naturales
ISM: Supernova Remnants
X-Rays: ISM
Radiation Mechanisms: Thermarl
ISM: Iindividual Objects: G272.2-3.2
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/2506

id RIDUNRN_1ed10b60763ac1a224eb48d1ae581aa8
oai_identifier_str oai:rid.unrn.edu.ar:20.500.12049/2506
network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central regionSánchez Ayaso, EstrellaCombi, Jorge A.Bocchino, F.Albacete Colombo, Juan FacundoLópez Santiago, J.Martí, J.Castro, E.Ciencias Exactas y NaturalesISM: Supernova RemnantsX-Rays: ISMRadiation Mechanisms: ThermarlISM: Iindividual Objects: G272.2-3.2Ciencias Exactas y NaturalesFil: Sánchez Ayaso, Estrella. Universidad de Jaén; EspañaFil: Combi, Jorge A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto Argentino de Radioastronomia; ArgentinaFil: Bocchino, F. Istituto Nazionale Di Astrofisica; ItaliaFil: Albacete Colombo, Juan F. Universidad Nacional del Comahue; ArgentinaFil: López Santiago, J. Universidad Complutense de Madrid; EspañaFil: Martí, J. Universidad de Jaén; EspañaFil: Castro, E. Universidad de Jaén; EspañaFil: Albacete Colombo, Juan F. Universidad Nacional de Río Negro; ArgentinaAims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant G272.2−3.2 in order to obtain important constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We report on combined XMM-Newton and Chandra images, median photon energy maps, silicon and sulfur equivalent width maps, and a spatially resolved spectral analysis for a set of regions of the remnant. Complementary radio and Hα observations, available in the literature, are also used to study the multi-wavelength connection of all detected emissions. Results. The X-ray morphology of the remnant displays an overall structure with an almost circular appearance and a centrally brightened hard region with a peculiar elongated hard structure oriented along the northwest-southeast direction of the central part. The X-ray spectral study of the regions shows distinct Kα emission-line features of metal elements, confirming the thermal origin of the emission. The X-ray spectra are well represented by an absorbed variable abundance non-equilibrium ionization thermal plasma model, which produces elevated abundances of Si, S, and Fe in the circular central region, typical of ejecta material. The values of abundances found in the central region of the supernova remnant favor a Type Ia progenitor for this remnant. The outer region shows abundances below the solar value, to be expected if the emission arises from the shocked interstellar medium. The relatively low ionization timescales suggest non-equilibrium ionization. We identify the location of the contact discontinuity. Its distance to the outer shock is higher than expected for expansion in a uniform media, which suggests that the remnant spent most of its time in more dense medium.Edp Sciences2013-03-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfSánchez Ayaso, E., Combi, Jorge A., Bocchino, F., Albacete Colombo, Juan F., López-santiago, J. (2013). XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region; Edp Sciences; Astronomy And Astrophysics;0004-63611432-0746http://adsabs.harvard.edu/abs/2013A%26A...552A..52Shttps://rid.unrn.edu.ar/jspui/handle/20.500.12049/2506https://ri.conicet.gov.ar/handle/11336/2641http://dx.doi.org/10.1051/0004-6361/201219709eng552Astronomy And Astrophysicsinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:28:59Zoai:rid.unrn.edu.ar:20.500.12049/2506instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:29:00.17RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
title XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
spellingShingle XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
Sánchez Ayaso, Estrella
Ciencias Exactas y Naturales
ISM: Supernova Remnants
X-Rays: ISM
Radiation Mechanisms: Thermarl
ISM: Iindividual Objects: G272.2-3.2
Ciencias Exactas y Naturales
title_short XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
title_full XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
title_fullStr XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
title_full_unstemmed XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
title_sort XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region
dc.creator.none.fl_str_mv Sánchez Ayaso, Estrella
Combi, Jorge A.
Bocchino, F.
Albacete Colombo, Juan Facundo
López Santiago, J.
Martí, J.
Castro, E.
author Sánchez Ayaso, Estrella
author_facet Sánchez Ayaso, Estrella
Combi, Jorge A.
Bocchino, F.
Albacete Colombo, Juan Facundo
López Santiago, J.
Martí, J.
Castro, E.
author_role author
author2 Combi, Jorge A.
Bocchino, F.
Albacete Colombo, Juan Facundo
López Santiago, J.
Martí, J.
Castro, E.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
ISM: Supernova Remnants
X-Rays: ISM
Radiation Mechanisms: Thermarl
ISM: Iindividual Objects: G272.2-3.2
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
ISM: Supernova Remnants
X-Rays: ISM
Radiation Mechanisms: Thermarl
ISM: Iindividual Objects: G272.2-3.2
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Sánchez Ayaso, Estrella. Universidad de Jaén; España
Fil: Combi, Jorge A. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto Argentino de Radioastronomia; Argentina
Fil: Bocchino, F. Istituto Nazionale Di Astrofisica; Italia
Fil: Albacete Colombo, Juan F. Universidad Nacional del Comahue; Argentina
Fil: López Santiago, J. Universidad Complutense de Madrid; España
Fil: Martí, J. Universidad de Jaén; España
Fil: Castro, E. Universidad de Jaén; España
Fil: Albacete Colombo, Juan F. Universidad Nacional de Río Negro; Argentina
Aims. We aim to study the spatial distribution of the physical and chemical properties of the X-ray emitting plasma of the supernova remnant G272.2−3.2 in order to obtain important constraints on its ionization stage, the progenitor supernova explosion, and the age of the remnant. Methods. We report on combined XMM-Newton and Chandra images, median photon energy maps, silicon and sulfur equivalent width maps, and a spatially resolved spectral analysis for a set of regions of the remnant. Complementary radio and Hα observations, available in the literature, are also used to study the multi-wavelength connection of all detected emissions. Results. The X-ray morphology of the remnant displays an overall structure with an almost circular appearance and a centrally brightened hard region with a peculiar elongated hard structure oriented along the northwest-southeast direction of the central part. The X-ray spectral study of the regions shows distinct Kα emission-line features of metal elements, confirming the thermal origin of the emission. The X-ray spectra are well represented by an absorbed variable abundance non-equilibrium ionization thermal plasma model, which produces elevated abundances of Si, S, and Fe in the circular central region, typical of ejecta material. The values of abundances found in the central region of the supernova remnant favor a Type Ia progenitor for this remnant. The outer region shows abundances below the solar value, to be expected if the emission arises from the shocked interstellar medium. The relatively low ionization timescales suggest non-equilibrium ionization. We identify the location of the contact discontinuity. Its distance to the outer shock is higher than expected for expansion in a uniform media, which suggests that the remnant spent most of its time in more dense medium.
description Fil: Sánchez Ayaso, Estrella. Universidad de Jaén; España
publishDate 2013
dc.date.none.fl_str_mv 2013-03-22
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Sánchez Ayaso, E., Combi, Jorge A., Bocchino, F., Albacete Colombo, Juan F., López-santiago, J. (2013). XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region; Edp Sciences; Astronomy And Astrophysics;
0004-6361
1432-0746
http://adsabs.harvard.edu/abs/2013A%26A...552A..52S
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2506
https://ri.conicet.gov.ar/handle/11336/2641
http://dx.doi.org/10.1051/0004-6361/201219709
identifier_str_mv Sánchez Ayaso, E., Combi, Jorge A., Bocchino, F., Albacete Colombo, Juan F., López-santiago, J. (2013). XMM-Newton and Chandra observations of G272.2-3.2. Evidence of stellar ejecta in the central region; Edp Sciences; Astronomy And Astrophysics;
0004-6361
1432-0746
url http://adsabs.harvard.edu/abs/2013A%26A...552A..52S
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2506
https://ri.conicet.gov.ar/handle/11336/2641
http://dx.doi.org/10.1051/0004-6361/201219709
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 552
Astronomy And Astrophysics
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Edp Sciences
publisher.none.fl_str_mv Edp Sciences
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1844621606722207744
score 12.559606