Publication: X-Rays from e ± Pair Halos
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Issued Date
2019
Resource Type
File Type
application/pdf
ISSN
0004637X
Other identifier(s)
2-s2.0-85071979990
Rights Holder(s)
Scopus
Bibliographic Citation
Astrophysical Journal. Vol 880, No.2 (2019)
Suggested Citation
Eungwanichayapant A., Luangtip W., Maithong W., Ruffolo D. X-Rays from e ± Pair Halos. Astrophysical Journal. Vol 880, No.2 (2019). doi:10.3847/1538-4357/ab288f Retrieved from: https://hdl.handle.net/20.500.14740/5200
Author(s)
Abstract
It was previously suggested that e ± pair halos could be observed in γ-rays. Searching for pair halos is a challenging topic in γ-ray astronomy that has not yet yielded a convincing detection for an individual object. Here we propose that X-ray observations could reveal the existence of e ± pair halos. To support our suggestion, we computed the observed energy and spatial distribution of X-ray photons from the pair halos and check the feasibility of pair halo detection by current and future X-ray observatories. The results show that current X-ray missions could register a positive signal for the pair halos created under some conditions. For a magnetic field (B) of ∼1 μG, the X-ray could be observable for a seed gamma-ray energy of TeV. If TeV, the observable range of B would be B ⪆ 300 nG. © 2019. The American Astronomical Society. All rights reserved..