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dc.contributor.authorKueathan A.
dc.contributor.authorLuangtip W.
dc.contributor.authorMaithong W.
dc.contributor.authorEungwanichayapant A.
dc.date.accessioned2021-04-05T03:05:03Z-
dc.date.available2021-04-05T03:05:03Z-
dc.date.issued2018
dc.identifier.issn17426588
dc.identifier.other2-s2.0-85059455812
dc.identifier.urihttps://ir.swu.ac.th/jspui/handle/123456789/12689-
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85059455812&doi=10.1088%2f1742-6596%2f1144%2f1%2f012131&partnerID=40&md5=6b93a370328d1568346456938f12e80c
dc.description.abstractAn electron/positron pair halo is formed by electromagnetic cascades that initiate when high energy gamma-rays from extragalactic sources - i.e. Blazar AGN - interact with the cosmic infrared background (CIB), and are then absorbed via the electron/positron pair production process. The high energy electron/positron pairs produced could up-scatter the cosmic microwave background (CMB) and become gamma rays which can interact with CIB again. Thus, the process could happen continuously until the produced gamma-rays have insufficient energy to interact with the CIB. Indeed, given the presence of intergalactic magnetic field, the produced electron/positron pairs could gyrate before scattered with the CMB photons so that they emit X-ray photons via the synchrotron radiation process. In this work, we determine whether the predicted X-ray photons emitted from the halo can be detected by the current generation X-ray observatory: XMM-Newton. The Spectral Energy Distributions (SEDs) of the synchrotron radiation of the pair halo predicted to be obtained from the AGN H1426+428 are simulated by the Monte Carlo simulations method; these are used as a source model for simulating observed spectra. The spectra of the halo virtually observed by XMM-Newton are generated in three different regions: the inner region, outer region and the region out of the XMM-Newton's field of view. The resulting spectra suggest that the outer region spectra could provide the best opportunity to detect and confirm the existence of electron/positron pair halos. © Published under licence by IOP Publishing Ltd.
dc.subjectCosmology
dc.subjectElectrons
dc.subjectIntelligent systems
dc.subjectMonte Carlo methods
dc.subjectObservatories
dc.subjectPhotons
dc.subjectSynchrotron radiation
dc.subjectSynchrotrons
dc.subjectX rays
dc.subjectCosmic microwave backgrounds
dc.subjectElectromagnetic cascades
dc.subjectExtragalactic sources
dc.subjectHigh energy gamma rays
dc.subjectHigh-energy electron
dc.subjectInfrared background
dc.subjectSpectral energy distribution
dc.subjectX ray observatories
dc.subjectGamma rays
dc.titleThe search for X-ray emission from electron/positron pair halos using the XMM-Newton observatory
dc.typeConference Paper
dc.rights.holderScopus
dc.identifier.bibliograpycitationJournal of Physics: Conference Series. Vol 1144, No.1 (2018), p.-
dc.identifier.doi10.1088/1742-6596/1144/1/012131
Appears in Collections:Scopus 1983-2021

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