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dc.contributor.author
Giacani, Elsa Beatriz
dc.contributor.author
Smith, M. J. S.
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Dubner, Gloria Mabel
dc.contributor.author
Loiseau, N.
dc.date.available
2018-04-17T16:02:02Z
dc.date.issued
2011-07
dc.identifier.citation
Giacani, Elsa Beatriz; Smith, M. J. S.; Dubner, Gloria Mabel; Loiseau, N.; A new study of the supernova remnant G344.7-0.1 located in the vicinity of the unidentified TeV source HESS J1702-420; EDP Sciences; Astronomy and Astrophysics; 531; 7-2011; 1-11
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/42269
dc.description.abstract
Context. The identification of counterparts of dark gamma-ray sources adds greatly to our understanding of their underlying astrophysical processes.
Aims. We investigate the physical properties of the supernova remnant (SNR) G344.7−0.1, to clarify whether it hosts a pulsar wind nebula (PWN), and the possible physical relationship between the SNR and the gamma-ray source HESS J1702−420. Methods. The research was carried out based on new high-resolution radio images produced from archival ATCA and VLA data in combination with X-ray archival XMM-Newton data. The ambient interstellar medium was investigated in HI, 12CO and mid IR (λ 24 μm) with data from the public SGPS, CfA CO and MIPSGAL surveys, respectively. Results. Based on the radio images and the comparison with X-ray and IR observations, we confirm that there is no PWN within G344.7−0.1; the observed emission highlights sites where the SN blast wave is encountering dense material. No radio counterpart is found for the X-ray object CXOU J170357.8-414302. The X-ray radiation completely fills in the interior of the SNR, being thermal in nature and originating in heated ejecta. From the spectral analysis it is inferred that G344.7−0.1 is the result of a core-collapse SN that exploded about 3000 yr ago. On the basis of HI absorption and emission we redetermined its distance in (6.3 ± 0.1) kpc. From the study of the surrounding gas, we conclude that G344.7−0.1 has evolved within an HI bubble created by the SN precursor. This bubble is, in turn, part of a larger HI/IR ring created by the stellar wind of prior-generation stars, about 2.6 × 106 yr ago. A second generation of stars formed in this compressed gas and about 3000 yr ago one of these stars exploded, creating the SNR G344.7−0.1. This study suggests that G344.7−0.1 and its turbulent environment is a plausible counterpart for HESS J1702−420.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ism: Supernova Remnants-
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Individual: G344.7-0.1
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Gamma Ray: Interstellar Medium
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Individual Objects: Hess J1702-420
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
A new study of the supernova remnant G344.7-0.1 located in the vicinity of the unidentified TeV source HESS J1702-420
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-16T14:31:52Z
dc.journal.volume
531
dc.journal.pagination
1-11
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Giacani, Elsa Beatriz. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Smith, M. J. S.. Agencia Espacial Europea. XMM-Newton Science Operations Centre; España
dc.description.fil
Fil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Loiseau, N.. Agencia Espacial Europea. XMM-Newton Science Operations Centre; España
dc.journal.title
Astronomy and Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2011/07/aa16768-11/aa16768-11.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361/201116768
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