Isolated Black Holes as Potential PeVatrons and Ultrahigh-energy Gamma-Ray Sources

The origin of PeV cosmic rays (CRs) is a long-standing mystery, and ultrahigh-energy gamma-ray observations would play a crucial role in identifying it. Recently, LHAASO reported the discovery of “dark” gamma-ray sources that were detected above 100 TeV without any GeV–TeV gamma-ray counterparts. Th...

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Bibliographic Details
Main Authors: Shigeo S. Kimura, Kengo Tomida, Masato I. N. Kobayashi, Koki Kin, Bing Zhang
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Letters
Subjects:
Online Access:https://doi.org/10.3847/2041-8213/adb841