Publication: X-Rays from e <sup>±</sup> Pair Halos
Issued Date
2019-08-01
Resource Type
ISSN
15384357
0004637X
0004637X
Other identifier(s)
2-s2.0-85071979990
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Mahidol University
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SCOPUS
Bibliographic Citation
Astrophysical Journal. Vol.880, No.2 (2019)
Suggested Citation
A. Eungwanichayapant, W. Luangtip, W. Maithong, D. Ruffolo X-Rays from e <sup>±</sup> Pair Halos. Astrophysical Journal. Vol.880, No.2 (2019). doi:10.3847/1538-4357/ab288f Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/50756
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Title
X-Rays from e <sup>±</sup> Pair Halos
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Abstract
© 2019. The American Astronomical Society. All rights reserved.. 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.