169 citations · 1.7k across the 43 of their papers we have counts for
19 papers · 1 filter
Charge-dependent spectral softenings of primary cosmic-rays below the knee
DAMPE Collaboration, Francesca Alemanno, Qi An +146
In most particle acceleration or propagation theories, the characteristic features of the cosmic ray spectra due to acceleration limits or propagation phase changes are charge depe…
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…
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…
Stringent constraints on the light boson model with supermassive black hole spin measurements
Lei Zu, Lei Feng, Qiang Yuan +1
Massive bosons, such as light scalars and vector bosons, can lead to instabilities of rotating black holes by the superradiance effect, which extracts energy and angular momentum f…
Searching for the possible signal of the photon-axionlike particle oscillation in the combined GeV and TeV spectra of supernova remnants
Zi-Qing Xia, Yun-Feng Liang, Lei Feng +3
The conversion between photons and axionlike particles (ALPs) in the Milky Way magnetic field could result in the detectable oscillation phenomena in -ray spectra of Galactic so…
Anomalous bremsstrahlung and the structure of cosmic ray electron-positron fluxes at the GeV-TeV energy range
Wei Zhu, Pen Liu, Jianhong Ruan +2
We reveal that the energy spectra of electrons-positrons in primary cosmic rays measured at atmosphere top have double structures: an excess component a…
A speculation about a puzzled result in energy spectrum of cosmic-ray electrons around TeV energies
Wei Zhu, Jianhong Ruan, Peng Liu +2
Nuclear Coulomb potential at completely ionized and extremely thin atmosphere can leaks to a macroscopic spatial scale. This effect is used to explain the difference between the en…
Dark Matter Particle Explorer observations of high-energy cosmic ray electrons plus positrons and their physical implications
Qiang Yuan, Lei Feng
The DArk Matter Particle Explorer (DAMPE) is a satellite-borne, high-energy particle and -ray detector, which is dedicated to indirectly detecting particle dark matter and study…
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…
Searching for spectral oscillations due to photon-axionlike particle conversion using the Fermi-LAT observations of bright supernova remnants
Zi-Qing Xia, Cun Zhang, Yun-Feng Liang +4
Axionlike-particles (ALPs) are one promising type of dark matter candidate particle that may generate detectable effects on -ray spectra other than the canonical weakly interact…
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…
Search for gamma-ray line features from Milky Way satellites with Fermi-LAT Pass 8 data
Yun-Feng Liang, Zi-Qing Xia, Zhao-Qiang Shen +7
With 91 months of the publicly available Fermi-LAT Pass 8 data, we analyze the gamma-ray emission from the Milky Way satellites to search for potential line signals due to the anni…
Search for a gamma-ray line feature from a group of nearby Galaxy clusters with Fermi LAT Pass 8 data
Yun-Feng Liang, Zhao-Qiang Shen, Xiang Li +6
Galaxy clusters are the largest gravitationally bound objects in the universe and may be suitable targets for indirect dark matter searches. With 85 months of Fermi-LAT Pass 8 publ…
Search for gamma-ray emission from eight dwarf spheroidal galaxy candidates discovered in Year Two of Dark Energy Survey with Fermi-LAT data
Shang Li, Yun-Feng Liang, Kai-Kai Duan +7
Very recently the Dark Energy Survey (DES) Collaboration has released their second group of Dwarf spheroidal (dSph) galaxy candidates. With the publicly-available Pass 8 data of Fe…
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…
GeV excess in the Milky Way: The Role of Diffuse Galactic gamma ray Emission template
Bei Zhou, Yun-Feng Liang, Xiaoyuan Huang +4
Several groups have analyzed the publicly-available Fermi-LAT data and reported a spatially extended ray excess of around GeV from the region surrounding the Galactic Cen…
Search for dark matter signals with Fermi-LAT observation of globular clusters NGC 6388 and M 15
Lei Feng, Qiang Yuan, Peng-Fei Yin +2
The globular clusters are probably good targets for dark matter (DM) searches in -rays due to the possible adiabatic contraction of DM by baryons. In this work we analyse the th…