| Téléchargement | - Voir la version finale : Deciphering the nature of the pulsar wind nebula CTB 87 with XMM–Newton (PDF, 2.0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1093/mnras/stz3270 |
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| Auteur | Rechercher : Guest, B.Identifiant ORCID : https://orcid.org/0000-0003-4078-0251; Rechercher : Safi-Harb, S.; Rechercher : MacMaster, A.; Rechercher : Kothes, R.1; Rechercher : Olmi, B.Identifiant ORCID : https://orcid.org/0000-0001-6022-8216; Rechercher : Amato, E.Identifiant ORCID : https://orcid.org/0000-0002-9881-8112; Rechercher : Bucciantini, N.; Rechercher : Arzoumanian, Z. |
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| Affiliation | - Conseil national de recherches du Canada. Herzberg en astronomie et en astrophysique
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| Format | Texte, Article |
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| Sujet | ISM: individual (CTB 87 CXOU J201609.2+371110); ISM: supernova remnants |
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| Résumé | CTB 87 (G74.9+1.2) is an evolved supernova remnant (SNR) which hosts a peculiar pulsar wind nebula (PWN). The X-ray peak is offset from that observed in radio and lies towards the edge of the radio nebula. The putative pulsar, CXOU J201609.2+371110, was first resolved with Chandra and is surrounded by a compact and a more extended X-ray nebula. Here, we use a deep XMM–Newton observation to examine the morphology and evolutionary stage of the PWN and to search for thermal emission expected from a supernova shell or reverse shock interaction with supernova ejecta. We do not find evidence of thermal X-ray emission from the SNR and place an upper limit on the electron density of 0.05 cm⁻³ for a plasma temperature kT ∼ 0.8 keV. The morphology and spectral properties are consistent with a ∼20-kyr-old relic PWN expanding into a stellar wind-blown bubble. We also present the first X-ray spectral index map from the PWN and show that we can reproduce its morphology by means of 2D axisymmetric relativistic hydrodynamical simulations. |
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| Date de publication | 2019-11-23 |
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| Maison d’édition | Oxford University Press
Royal Astronomical Society |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 1dca8fb6-5bed-4084-ba1a-0034d71bfaf7 |
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| Enregistrement créé | 2020-10-26 |
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| Enregistrement modifié | 2020-10-28 |
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