An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302

Aims. We report results of an X-ray study of the supernova remnant (SNR) G344.7-0.1 and the point-like X-ray source located at the geometrical center of the SNR radio structure. Methods. The morphology and spectral properties of the remnant and the central X-ray point-like source were studied using...

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Autores: Combi, J. A., Albacete Colombo, J. F., López Santiago, J., Romero, G. E., Sánchez Ayaso, E., Martí, J., Luque Escamilla, P. L., Pérez González, Pablo Guillermo, Muñoz Arjonilla,, A. J., Sánchez Sutil, J. R.
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/45101
Acceso en línea:https://hdl.handle.net/20.500.14352/45101
Access Level:acceso abierto
Palabra clave:52
Galactic plane survey
Multiband imaging photometer
Counting detector images
Large-magellanic-cloud
Supernova-remnants
Wavelet transforms
Infrared-emission
Dust destruction
Cassiopeia-a
Spitzer mips
Astrofísica
Astronomía (Física)
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spelling An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302Combi, J. A.Albacete Colombo, J. F.López Santiago, J.Romero, G. E.Sánchez Ayaso, E.Martí, J.Luque Escamilla, P. L.Pérez González, Pablo GuillermoMuñoz Arjonilla,, A. J.Sánchez Sutil, J. R.52Galactic plane surveyMultiband imaging photometerCounting detector imagesLarge-magellanic-cloudSupernova-remnantsWavelet transformsInfrared-emissionDust destructionCassiopeia-aSpitzer mipsAstrofísicaAstronomía (Física)Aims. We report results of an X-ray study of the supernova remnant (SNR) G344.7-0.1 and the point-like X-ray source located at the geometrical center of the SNR radio structure. Methods. The morphology and spectral properties of the remnant and the central X-ray point-like source were studied using data from the XMM-Newton and Chandra satellites. Archival radio data and infrared Spitzer observations at 8 and 24 mu m were used to compare and study its multi-band properties at different wavelengths. Results. The XMM-Newton and Chandra observations reveal that the overall X-ray emission of G344.7-0.1 is extended and correlates very well with regions of bright radio and infrared emission. The X-ray spectrum is dominated by prominent atomic emission lines. These characteristics suggest that the X-ray emission originated in a thin thermal plasma, whose radiation is represented well by a plane-parallel shock plasma model (PSHOCK). Our study favors the scenario in which G344.7-0.1 is a 6 x 10^3 year old SNR expanding in a medium with a high density gradient and is most likely encountering a molecular cloud on the western side. In addition, we report the discovery of a soft point-like X-ray source located at the geometrical center of the radio SNR structure. The object presents some characteristics of the so-called compact central objects (CCO). However, its neutral hydrogen absorption column (N_H) is inconsistent with that of the SNR. Coincident with the position of the source, we found infrared and optical objects with typical early-K star characteristics. The X-ray source may be a foreground star or the CCO associated with the SNR. If this latter possibility were confirmed, the point-like source would be the farthest CCO detected so far and the eighth member of the new population of isolated and weakly magnetized neutron stars.EDP ScienciesUniversidad Complutense de Madrid20102010-11-0120102010-11-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/45101reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/451012026-06-02T12:44:21Z
dc.title.none.fl_str_mv An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
title An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
spellingShingle An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
Combi, J. A.
52
Galactic plane survey
Multiband imaging photometer
Counting detector images
Large-magellanic-cloud
Supernova-remnants
Wavelet transforms
Infrared-emission
Dust destruction
Cassiopeia-a
Spitzer mips
Astrofísica
Astronomía (Física)
title_short An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
title_full An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
title_fullStr An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
title_full_unstemmed An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
title_sort An X-ray study of the SNR G344.7-0.1 and the central object CXOU J170357.8-414302
dc.creator.none.fl_str_mv Combi, J. A.
Albacete Colombo, J. F.
López Santiago, J.
Romero, G. E.
Sánchez Ayaso, E.
Martí, J.
Luque Escamilla, P. L.
Pérez González, Pablo Guillermo
Muñoz Arjonilla,, A. J.
Sánchez Sutil, J. R.
author Combi, J. A.
author_facet Combi, J. A.
Albacete Colombo, J. F.
López Santiago, J.
Romero, G. E.
Sánchez Ayaso, E.
Martí, J.
Luque Escamilla, P. L.
Pérez González, Pablo Guillermo
Muñoz Arjonilla,, A. J.
Sánchez Sutil, J. R.
author_role author
author2 Albacete Colombo, J. F.
López Santiago, J.
Romero, G. E.
Sánchez Ayaso, E.
Martí, J.
Luque Escamilla, P. L.
Pérez González, Pablo Guillermo
Muñoz Arjonilla,, A. J.
Sánchez Sutil, J. R.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Galactic plane survey
Multiband imaging photometer
Counting detector images
Large-magellanic-cloud
Supernova-remnants
Wavelet transforms
Infrared-emission
Dust destruction
Cassiopeia-a
Spitzer mips
Astrofísica
Astronomía (Física)
topic 52
Galactic plane survey
Multiband imaging photometer
Counting detector images
Large-magellanic-cloud
Supernova-remnants
Wavelet transforms
Infrared-emission
Dust destruction
Cassiopeia-a
Spitzer mips
Astrofísica
Astronomía (Física)
description Aims. We report results of an X-ray study of the supernova remnant (SNR) G344.7-0.1 and the point-like X-ray source located at the geometrical center of the SNR radio structure. Methods. The morphology and spectral properties of the remnant and the central X-ray point-like source were studied using data from the XMM-Newton and Chandra satellites. Archival radio data and infrared Spitzer observations at 8 and 24 mu m were used to compare and study its multi-band properties at different wavelengths. Results. The XMM-Newton and Chandra observations reveal that the overall X-ray emission of G344.7-0.1 is extended and correlates very well with regions of bright radio and infrared emission. The X-ray spectrum is dominated by prominent atomic emission lines. These characteristics suggest that the X-ray emission originated in a thin thermal plasma, whose radiation is represented well by a plane-parallel shock plasma model (PSHOCK). Our study favors the scenario in which G344.7-0.1 is a 6 x 10^3 year old SNR expanding in a medium with a high density gradient and is most likely encountering a molecular cloud on the western side. In addition, we report the discovery of a soft point-like X-ray source located at the geometrical center of the radio SNR structure. The object presents some characteristics of the so-called compact central objects (CCO). However, its neutral hydrogen absorption column (N_H) is inconsistent with that of the SNR. Coincident with the position of the source, we found infrared and optical objects with typical early-K star characteristics. The X-ray source may be a foreground star or the CCO associated with the SNR. If this latter possibility were confirmed, the point-like source would be the farthest CCO detected so far and the eighth member of the new population of isolated and weakly magnetized neutron stars.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010-11-01
2010
2010-11-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/45101
url https://hdl.handle.net/20.500.14352/45101
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciencies
publisher.none.fl_str_mv EDP Sciencies
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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