Publication: The search for X-ray emission from electron/positron pair halos using the XMM-Newton observatory
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Issued Date
2018
Resource Type
File Type
application/pdf
ISSN
17426588
Other identifier(s)
2-s2.0-85059455812
Rights Holder(s)
Scopus
Bibliographic Citation
Journal of Physics: Conference Series. Vol 1144, No.1 (2018), p.-
Suggested Citation
Kueathan A., Luangtip W., Maithong W., Eungwanichayapant A. The search for X-ray emission from electron/positron pair halos using the XMM-Newton observatory. Journal of Physics: Conference Series. Vol 1144, No.1 (2018), p.-. doi:10.1088/1742-6596/1144/1/012131 Retrieved from: https://hdl.handle.net/20.500.14740/5752
Abstract
An 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.
Subject(s)
Cosmology
Electrons
Intelligent systems
Monte Carlo methods
Observatories
Photons
Synchrotron radiation
Synchrotrons
X rays
Cosmic microwave backgrounds
Electromagnetic cascades
Extragalactic sources
High energy gamma rays
High-energy electron
Infrared background
Spectral energy distribution
X ray observatories
Gamma rays
Electrons
Intelligent systems
Monte Carlo methods
Observatories
Photons
Synchrotron radiation
Synchrotrons
X rays
Cosmic microwave backgrounds
Electromagnetic cascades
Extragalactic sources
High energy gamma rays
High-energy electron
Infrared background
Spectral energy distribution
X ray observatories
Gamma rays