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Detection of GeV -ray emission in the direction of HESS J1731-347 with Fermi-LAT
Xiao-Lei Guo, Yu-Liang Xin, Neng-Hui Liao +3
We report the detection of GeV -ray emission from supernova remnant HESS J1731-347 using 9 years of {\it Fermi} Large Area Telescope data. We find a slightly extended GeV source…
Interpretations of the DAMPE electron data
Qiang Yuan, Lei Feng, Peng-Fei Yin +26
The DArk Matter Particle Explorer (DAMPE), a high energy cosmic ray and -ray detector in space, has recently reported the new measurement of the total electron plus positron flu…
Constraints on box-shaped cosmic ray electron feature from dark matter annihilation with the AMS-02 and DAMPE data
Lei Zu, Cun Zhang, Lei Feng +2
Precise measurements of spectra of cosmic ray electrons and positrons can effectively probe the nature of dark matter (DM) particles. In a class of models where DM particles initia…
GW170817 and the prospect of forming supramassive remnants in neutron star mergers
Peng-Xiong Ma, Jin-Liang Jiang, Hao Wang +3
The gravitational wave data of GW170817 favor the equation of state (EoS) models that predict compact neutron stars (NSs), consistent with the radius constraints from X-ray observa…
How Special Is GRB 170817A?
Chuan Yue, Qian Hu, Fu-Wen Zhang +5
GRB 170817A is the first short gamma-ray burst (GRB) with direct detection of the gravitational-wave radiation and also the spectroscopically identified macronova emission (i.e., A…
GW170817/GRB 170817A/AT2017gfo association: some implications for physics and astrophysics
Hao Wang, Fu-Wen Zhang, Yuan-Zhu Wang +9
On 17 August 2017, a gravitational wave event (GW170817) and an associated short gamma-ray burst (GRB 170817A) from a binary neutron star merger had been detected. The followup opt…
GRB 111005A at Z = 0.0133 and the Prospect of Establishing Long-short GRB/GW Association
Yuan-Zhu Wang, Yong-Jia Huang, Yun-Feng Liang +6
GRB 111005A, one long duration gamma-ray burst (GRB) occurred within a metal-rich environment that lacks massive stars with , is not coincident with sup…
Fast -ray variability in blazars beyond redsift 3
Shang Li, Zi-Qing Xia, Yun-Feng Liang +2
High-redshift blazars are one of the most powerful monsters in the universe and -ray variability carries crucial information of their relativistic jets. In this work we present…
Short GRBs: opening angles, local neutron star merger rate and off-axis events for GRB/GW association
Zhi-Ping Jin, Xiang Li, Hao Wang +7
The jet breaks in the afterglow lightcurves of short gamma-ray bursts (SGRBs), rarely detected so far, are crucial for estimating the half-opening angles of the ejecta (…
A -ray Quasi-Periodic modulation in the Blazar PKS 0301243?
Peng-Fei Zhang, Da-Hai Yan, Jia-Neng Zhou +3
We report a nominally high-confidence -ray quasi-periodic modulation in the blazar PKS 0301243. For this target, we analyze its \emph{Fermi}-LAT Pass 8 data covering from 200…
Possible correlations between the emission properties of short GRBs and their offsets from the host galaxies
Shuai Zhang, Zhi-Ping Jin, Fu-Wen Zhang +3
Short Gamma-Ray Bursts(SGRBs) are widely believed to be from mergers of binary compact objects involving at least one neutron star and hence have a broad range of spatial offsets f…
Hearing the birth of the lightest intermediate mass black holes with the second generation gravitational wave detectors
Yun-Feng Liang, Yuan-Zhu Wang, Hao Wang +6
Intermediate mass black holes (IMBHs) with a mass between and times that of the sun, which bridges the {mass gap between the} stellar-mass black holes and the sup…
Limits on Dark Matter annihilation cross sections to gamma-ray lines with subhalo distribution in N-body simulation and Fermi LAT data
Yun-Feng Liang, Zi-Qing Xia, Kai-Kai Duan +3
In this work, we simulate a set of realizations of local volume dark matter subhalo population based on the distributions and relations derived from Via Lactea II N-body simulation…
Revealing physical activity of GRB central engine with macronova/kilonova data
Zhao-Qiang Shen, Zhi-Ping Jin, Yun-Feng Liang +3
The modeling of Li-Paczyński macronova/kilonova signals gives reasonable estimate on the neutron-rich material ejected during the neutron star mergers. Usually the accretion disk i…