A multiwavelength study of the supernova remnant G296.8-0.3
We report XMM-Newton observations of the Galactic supernova remnant G296.8-0.3, together with complementary radio and infrared data. The spatial and spectral properties of the X-ray emission, detected towards G296.8-0.3, was investigated in order to explore the possible evolutionary scenarios and th...
Guardado en:
| Autores principales: | , , , , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/129613 |
| Aporte de: |
| id |
I19-R120-10915-129613 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Astronomía Física ISM: individual objects: G296.8-0.3 ISM: supernova remnants X-ray: ISM Radiation mechanism: thermal ISM: individual objects: 2XMMi J115836.1-623516 |
| spellingShingle |
Astronomía Física ISM: individual objects: G296.8-0.3 ISM: supernova remnants X-ray: ISM Radiation mechanism: thermal ISM: individual objects: 2XMMi J115836.1-623516 Sánchez Ayaso, E. Combi, Jorge Ariel Albacete Colombo, J. F. Lopez Santiago, J. Martí, J. Muñoz Arjonilla, A. J. A multiwavelength study of the supernova remnant G296.8-0.3 |
| topic_facet |
Astronomía Física ISM: individual objects: G296.8-0.3 ISM: supernova remnants X-ray: ISM Radiation mechanism: thermal ISM: individual objects: 2XMMi J115836.1-623516 |
| description |
We report XMM-Newton observations of the Galactic supernova remnant G296.8-0.3, together with complementary radio and infrared data. The spatial and spectral properties of the X-ray emission, detected towards G296.8-0.3, was investigated in order to explore the possible evolutionary scenarios and the physical connexion with its unusual morphology detected at radio frequencies. G296.8-0.3 displays diffuse X-ray emission correlated with the peculiar radio morphology detected in the interior of the remnant and with the shell-like radio structure observed to the northwest side of the object. The X-ray emission peaks in the soft/medium energy range (0.5–3.0 keV). The X-ray spectral analysis confirms that the column density is high (N; H∼0.64×1022 cm−2) which supports a distant location (d>9 kpc) for the SNR. Its X-ray spectrum can be well represented by a thermal (PSHOCK) model, with kT∼0.86 keV, an ionization timescale of 6.1×1010 cm−3 s, and low abundance (∼0.12 Z; ⊙). The 24 μm observations show shell-like emission correlated with part of the northwest and southeast boundaries of the SNR. In addition a point-like X-ray source is also detected close to the geometrical center of the radio SNR. The object presents some characteristics of the so-called compact central objects (CCO). Its X-ray spectrum is consistent with those found at other CCOs and the value of N; H is consistent with that of G296.8-0.3, which suggests a physical connexion with the SNR. |
| format |
Articulo Preprint |
| author |
Sánchez Ayaso, E. Combi, Jorge Ariel Albacete Colombo, J. F. Lopez Santiago, J. Martí, J. Muñoz Arjonilla, A. J. |
| author_facet |
Sánchez Ayaso, E. Combi, Jorge Ariel Albacete Colombo, J. F. Lopez Santiago, J. Martí, J. Muñoz Arjonilla, A. J. |
| author_sort |
Sánchez Ayaso, E. |
| title |
A multiwavelength study of the supernova remnant G296.8-0.3 |
| title_short |
A multiwavelength study of the supernova remnant G296.8-0.3 |
| title_full |
A multiwavelength study of the supernova remnant G296.8-0.3 |
| title_fullStr |
A multiwavelength study of the supernova remnant G296.8-0.3 |
| title_full_unstemmed |
A multiwavelength study of the supernova remnant G296.8-0.3 |
| title_sort |
multiwavelength study of the supernova remnant g296.8-0.3 |
| publishDate |
2011 |
| url |
http://sedici.unlp.edu.ar/handle/10915/129613 |
| work_keys_str_mv |
AT sanchezayasoe amultiwavelengthstudyofthesupernovaremnantg296803 AT combijorgeariel amultiwavelengthstudyofthesupernovaremnantg296803 AT albacetecolombojf amultiwavelengthstudyofthesupernovaremnantg296803 AT lopezsantiagoj amultiwavelengthstudyofthesupernovaremnantg296803 AT martij amultiwavelengthstudyofthesupernovaremnantg296803 AT munozarjonillaaj amultiwavelengthstudyofthesupernovaremnantg296803 AT sanchezayasoe multiwavelengthstudyofthesupernovaremnantg296803 AT combijorgeariel multiwavelengthstudyofthesupernovaremnantg296803 AT albacetecolombojf multiwavelengthstudyofthesupernovaremnantg296803 AT lopezsantiagoj multiwavelengthstudyofthesupernovaremnantg296803 AT martij multiwavelengthstudyofthesupernovaremnantg296803 AT munozarjonillaaj multiwavelengthstudyofthesupernovaremnantg296803 |
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Repositorios |
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