62 citations · 604 across the 35 of their papers we have counts for
35 papers
Gamma-Ray Millisecond Pulsars: Off-pulse Emission Characteristics, Phase-Resolved Pseudo-Luminosity--Cutoff Energy Correlation, and High-energy Pulsed Emission
Ming-Yu Lei, Zhao-Qiang Shen, Zi-Qing Xia +1
We investigate the -ray emission from 38 millisecond pulsars using 15 years of Fermi-LAT Pass 8 data in the 0.3--500 GeV range. Off-pulse intervals defined objectively with the…
PSF Calibration of DAMPE for gamma-ray Observations
Kai-Kai Duan, Zhao-Qiang Shen, Zun-Lei Xu +2
The DArk Matter Particle Explorer (DAMPE) is dedicated to exploring critical scientific domains including the indirect detection of dark matter, cosmic ray physics, and gamma ray a…
The calibrations of DAMPE -ray effective area
Zhao-Qiang Shen, Wen-Hao Li, Kai-Kai Duan +4
The DArk Matter Particle Explorer (DAMPE) is a cosmic-ray detector as well as a pair-converting -ray telescope. The effective area, reflecting the geometrical cross-section area…
Evidence for a GeV -ray line signal in a stacking analysis of the Virgo, Fornax, and Ophiuchus Galaxy clusters
Yi-Zhong Fan, Zhao-Qiang Shen, Yun-Feng Liang +6
As the largest gravitationally bound objects in the Universe, galaxy clusters have provided the first piece of evidence for the presence of dark matter and may be suitable targets…
Searching Accretion-Enhanced Dark Matter Annihilation Signals in the Galactic Centre
MeiWen Yang, Zhi-Qi Guo, Xiao-Yi Luo +5
This study reanalyzes the detection prospects of dark matter (DM) annihilation signals in the Galactic Center, focusing on velocity-dependent dynamics within a spike density near t…
Dark Matter Spike surrounding Supermassive Black Holes Binary and the Nanohertz Stochastic Gravitational Wave Background
Zhao-Qiang Shen, Guan-Wen Yuan, Yi-Ying Wang +3
The NANOGrav, PPTA, EPTA, CPTA and MPTA collaborations have reported compelling evidence for the existence of the Stochastic Gravitational-Wave Background (SGWB). This inferred bac…
Black holes as the source of dark energy: a stringent test with high-redshift JWST AGNs
Lei Lei, Lei Zu, Guan-Wen Yuan +12
Studies have proposed that there is evidence for cosmological coupling of black holes (BHs) with an index of ; hence, BHs serve as the astrophysical source of dark ener…
Rapidly growing primordial black holes as seeds of the massive high-redshift JWST Galaxies
Guan-Wen Yuan, Lei Lei, Yuan-Zhu Wang +6
A group of massive galaxies at redshifts of have been recently detected by the James Webb Space Telescope (JWST), which were unexpected to form so early within the fra…
Exploring dark matter spike distribution around the Galactic centre with stellar orbits
Zhao-Qiang Shen, Guan-Wen Yuan, Cheng-Zi Jiang +3
Precise measurements of the stellar orbits around Sagittarius A* have established the existence of a supermassive black hole (SMBH) at the Galactic centre (GC). Due to the interpla…
Constraining ultralight bosonic dark matter with Keck observations of S2's orbit and kinematics
Guan-Wen Yuan, Zhao-Qiang Shen, Yue-Lin Sming Tsai +2
Ultralight bosonic dark matter is expected to be able to form a cloud surrounding the supermassive black hole (SMBH) in the Galactic center. With increasing precision of the observ…
Search for gamma-ray emission from the 12 nearby dwarf spheroidal galaxies with 12 years of Fermi-LAT data
Shang Li, Yun-Feng Liang, Yi-Zhong Fan
Previously, we have shown in Li et al. (2018) that very weak -ray excesses () appear in some Milky Way dwarf spheroidal galaxies (dSphs, including candidates) and the c…
Observations of Forbush Decreases of cosmic ray electrons and positrons with the Dark Matter Particle Explorer
Francesca Alemanno, Qi An, Philipp Azzarello +146
The Forbush Decrease (FD) represents the rapid decrease of the intensities of charged particles accompanied with the coronal mass ejections (CMEs) or high-speed streams from corona…
Explanation of nearby SNRs for primary electron excess and proton spectral bump
Tian-Peng Tang, Zi-Qing Xia, Zhao-Qiang Shen +5
Several groups have reported a possible excess of primary electrons at high energies with the joint fit of the positron fraction and total electron/positron spectra. With the lates…
Investigating the dark matter minispikes with the gamma-ray signal from the halo of M31
Zi-Qing Xia, Zhao-Qiang Shen, Xu Pan +2
Recently, the evidence for gamma-ray emission has been found in the -LAT observation for the outer halo of Andromeda galaxy (M31). The dark matter (DM) annihilation offers a…
Search for line-like and box-shaped spectral features from nearby galaxy clusters with 11.4 years of Fermi LAT data
Zhao-Qiang Shen, Zi-Qing Xia, Yi-Zhong Fan
Sharp spectral structures in the -ray band are an important dark matter (DM) signature. Previously, a tentative line feature at is reported in 16 nearby gala…
Optimal gamma-ray selections for monochromatic line searches with DAMPE
Zun-Lei Xu, Kai-Kai Duan, Wei Jiang +9
The DArk Matter Particle Explorer (DAMPE) is a space high-energy cosmic-ray detector covering a wide energy band with a high energy resolution. One of the key scientific goals of D…
Constraints on dark matter annihilation from the Event Horizon Telescope Observations of M87
Guan-Wen Yuan, Zhan-Fang Chen, Zhao-Qiang Shen +4
The fast developments of radio astronomy open a new window to explore the properties of Dark Matter (DM). The recent direct imaging of the supermassive black hole (SMBH) at the cen…
Boresight Alignment of DArk Matter Particle Explorer
Wei Jiang, Xiang Li, Kai-Kai Duan +5
The DArk Matter Particle Explorer (DAMPE) can measure -rays in the energy range from a few GeV to about 10 TeV. The direction of each -ray is reconstructed with respect to th…
DmpIRFs and DmpST: DAMPE Instrument Response Functions and Science Tools for Gamma-Ray Data Analysis
Kai-Kai Duan, Wei Jiang, Yun-Feng Liang +15
GeV gamma ray is an important observation target of DArk Matter Particle Explorer (DAMPE) for indirect dark matter searching and high energy astrophysics. We present in this work a…
Probing local cosmic rays using Fermi-LAT observation of a mid-latitude region in the third Galactic quadrant
Zhao-Qiang Shen, Xiaoyuan Huang, Qiang Yuan +2
The -ray observation of interstellar gas provides a unique way to probe the cosmic rays (CRs) outside the solar system. In this work, we use an updated version of Fermi-LAT data…
Search for line signal candidates in the Fermi-LAT data
Shang Li, Zi-Qing Xia, Yun-Feng Liang +7
In order to search for the line-like signals in the Fermi-LAT data, we have analyzed totally 49152 regions of interest (ROIs) that cover the whole sky. No ROI displays a line signa…
Search for gamma-ray emission from the nearby dwarf spheroidal galaxies with 9 years of Fermi-LAT data
Shang Li, Kai-Kai Duan, Yun-Feng Liang +8
In this work, we search for -ray emission from the directions of some nearby Milky Way dwarf spheroidal galaxies (dSphs) and candidates with the publicly-available Pass 8 data o…
Detection of the Characteristic Pion-Decay Signature in the Molecular Clouds
Zhao-Qiang Shen, Yun-Feng Liang, Kai-Kai Duan +4
The -ray emission from molecular clouds is widely believed to have a hadronic origin, while unequivocal evidence is still lacking. In this work, we analyze the Fermi-LAT Pass 8…
Is the gamma-ray emission around the Coma galaxy cluster a dark matter origin?
Yun-Feng Liang, Zi-Qing Xia, Shao-Qiang Xi +3
Recently, gamma-ray emission in the direction of Coma, with a TS value of , has been reported. In this work we will discuss the possibility of such a residual emission com…