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23 papers · 2 filters
The `excess' of primary cosmic ray electrons
Xiang Li, Zhao-Qiang Shen, Bo-Qiang Lu +5
With the accurate cosmic ray (CR) electron and positron spectra (denoted as and , respectively) measured by AMS-02 collaboration, the difference betw…
Superluminous Supernovae Powered by Magnetars: Late-time Light Curves and Hard Emission Leakage
S. Q. Wang, L. J. Wang, Z. G. Dai +1
Recently, researches performed by two groups have revealed that the magnetar spin-down energy injection model with full energy trapping can explain the early-time light curves of S…
A Monte Carlo Bayesian Search for the Plausible Source of the Telescope Array Hotspot
Hao-Ning He, Alexander Kusenko, Shigehiro Nagataki +3
The Telescope Array (TA) collaboration has reported a hotspot of 19 ultrahigh-energy cosmic rays (UHECRs). Using a universal model with one source and energy-dependent magnetic def…
Circular polarization in the optical afterglow of GRB 121024A
K. Wiersema, S. Covino, K. Toma +37
Gamma-ray bursts (GRBs) are most probably powered by collimated relativistic outflows (jets) from accreting black holes at cosmological distances. Bright afterglows are produced wh…
The structure of TeV-bright shell-type supernova remnants
Chuyuan Yang, Siming Liu, Jun Fang +1
Aims. Two-dimensional MHD simulations are used to model the emission properties of TeV-bright shell-type supernova remnants (SNRs) and to explore their nature. Methods. In the lept…
Photosphere emission in the X-Ray Flares of Swift Gamma-Ray Bursts and Implications for the Fireball Properties
Fang-Kun Peng, En-Wei Liang, Xiang-Yu Wang +5
X-ray flares of gamma-ray bursts (GRBs) are usually observed in the soft X-ray range and the spectral coverage is limited. In this paper, we present an analysis of 32 GRB X-ray fla…