21 citations · 52 across the 7 of their papers we have counts for
7 papers
The radiation emitted from axion dark matter in a homogeneous magnetic field, and possibilities for detection
Shuo Xu, Siyu Chen, Hong-Hao Zhang +1
We study the direct radiation excited by oscillating axion (or axion-like particle) dark matter in a homogenous magnetic field and its detection scheme. We concretely derive the an…
Can one-zone hadronuclear model explain the hard-TeV spectrum of BL Lac objects?
Wei-Jian Li, Rui Xue, Guang-Bo Long +4
Context. The intrinsic TeV emission of some BL Lacs are characterized by a hard spectrum (the hard-TeV spectrum) after correcting for the extragalactic background light. The hard-T…
Revisiting the constraints on primordial black hole abundance with the isotropic gamma ray background
Siyu Chen, Hong-Hao Zhang, Guangbo Long
We revisit the constraints on primordial black holes (PBHs) in the mass range g by comparing the 100\,keV-5\,GeV gamma-ray background with isotropic flux from PBH…
Searching for an additional high-energy component in Fermi-LAT GRB afterglows
Xin-Bo He, Pak-Hin Thomas Tam, Guang-Bo Long +3
The VHE component from at least two GRBs, i.e., GRB180720B and GRB190114C, has been detected in the afterglow phase. We systematically analyzed 199 GRBs detected by Fermi-LAT durin…
Probing eV ALPs with future LHAASO observation of AGN -ray spectra
Guangbo Long, Siyu Chen, Shuo Xu +1
Axion-like particles (ALPs) are predicted in some well-motivated theories beyond the Standard Model. The TeV gamma-rays from active galactic nuclei (AGN) suffer attenuation by the…
Is an upturn commonly seen in Fermi-LAT GRB afterglow spectra?
Xin-Bo He, Pak-Hin Thomas Tam, Guang-Bo Long +1
We analyzed 199 GRBs detected by Fermi-LAT during the years 2008-2019. We found 67 photons at energies >=10 GeV, which come from 34 GRBs. Out of these 34 GRBs, Fermi-LAT detects si…
Effect of magnetic field on neutrino annihilation efficiency in gamma-ray bursts
Shuang Du, Fang-Kun Peng, Guang-Bo Long +1
Neutrino annihilation process on a hyperaccreting disk is one of the leading models to explain the generation of relativistic jets of gamma-ray bursts (GRBs). However, there is sti…