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
- Institución
- Universidad Nacional de Río Negro
- OAI Identificador
- oai:rid.unrn.edu.ar:20.500.12049/2506
Ver los metadatos del registro completo
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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 |
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1844621606722207744 |
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