activity
20002026
most citedHXMT Identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428

274 citations · 2k across the 49 of their papers we have counts for

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27 papers · 1 filter

astro-ph.HE2026

Search for Ultra-Relativistic Magnetic Monopoles with LHAASO-KM2A

Zhen Cao, F. Aharonian, Y. X. Bai +335

Ultra-relativistic magnetic monopoles traversing the atmosphere are expected to initiate extensive air showers characterized by a muon deficit and a compact lateral profile. Using…

astro-ph.HE2026

LHAASO-WCDA observed a 5 days TeV-delayed flaring event in blazar 1ES 1959+650

Zhen Cao, F. Aharonian, Y. X. Bai +339

We report a day-scale hard lag between GeV and TeV -ray emission from the HBL 1ES~1959+650 in early 2024. Since the LHAASO-WCDA real-time monitoring system began operation in la…

astro-ph.HE2026

An energetic dirty fireball detected in soft X-rays

C. -Y. Dai, J. Quirola-Vásquez, Y. -H. Wang +76

The collapse of massive stars drives explosions that power relativistic fireballs. If only a small amount of matter is entrained, such clean fireballs can expand with Lorentz facto…

astro-ph.HE2025

LHAASO Detection of Ultra-High-Energy Gamma-Ray Emission toward the Giant Molecular Clouds

Zhen Cao, F. Aharonian, Y. X. Bai +310

The -ray from Giant molecular clouds (GMCs) is regarded as the most ideal tool to perform in-situ measurement of cosmic ray (CR) density and spectra in our Galaxy. We report the…

astro-ph.HE2025

Energy calibration of LHAASO-KM2A using the cosmic ray Moon shadow

Zhen Cao, F. Aharonian, Y. X. Bai +323

We present a precise measurement of the westward, rigidity-dependent shift of the Moon's shadow using three and a half years of cosmic-ray data collected by the Kilometer Square Ar…

astro-ph.HE2025

All-sky search for individual Primordial Black Hole bursts with LHAASO

Zhen Cao, F. Aharonian, Y. X. Bai +311

Primordial Black Holes~(PBHs) are hypothetical black holes with a wide range of masses that formed in the early universe. As a result, they may play an important cosmological role…

astro-ph.HE2024★ 8 cited

Evidence for particle acceleration approaching PeV energies in the W51 complex

The LHAASO Collaboration, Zhen Cao, F. Aharonian +284

The -ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays (CRs) accelerated by the shock of supernova remnant (SN…

astro-ph.HE2023★ 85 cited

An Ultrahigh-energy -ray Bubble Powered by a Super PeVatron

The LHAASO Collaboration, Z. Cao, F. Aharonian +277

We report the detection of a -ray bubble spanning at least 100 in ultra high energy (UHE) up to a few PeV in the direction of the star-forming region Cygnus X, implyi…

astro-ph.HE2023★ 2 cited

Evidence of mini-jet emission in a large emission zone from a magnetically-dominated gamma-ray burst jet

S. -X. Yi, C. -W. Wang, X. -Y. Shao +42

The second brightest GRB in history, GRB230307A, provides an ideal laboratory to study the mechanism of GRB prompt emission thanks to its extraordinarily high photon statistics and…

astro-ph.HE2020★ 274 cited

HXMT Identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428

C. K. Li, L. Lin, S. L. Xiong +117

Fast radio bursts (FRBs) are short pulses observed in radio band from cosmological distances. One class of models invoke soft gamma-ray repeaters (SGRs), or magnetars, as the sourc…

astro-ph.HE2020★ 3 cited

Insight-HXMT insight into switch of the accretion mode: the case of the X-ray pulsar 4U 1901+03

Y. L. Tuo, L. Ji, S. S. Tsygankov +116

We use the In data collected during the 2019 outburst from X-ray pulsar 4U 1901+03 to complement the orbital parameters reported by Fermi/GBM. Using the Insight-HXMT, we examine th…

astro-ph.HE2020

Joint Analysis of Energy and RMS Spectra from MAXI J1535-571 with Insight-HXMT

L. D. Kong, S. Zhang, Y. P. Chen +115

A new black hole X-ray binary (BHXRB) MAXI J1535-571 was discovered by MAXI during its outburst in 2017. Using observations taken by the first Chinese X-ray satellite, the Hard X-r…

astro-ph.HE2019

Diagnostic of the spectral properties of Aquila X-1 by Insight-HXMT snapshots during the early propeller phase

C. Güngör, M. Y. Ge, S. Zhang +108

We study the 2018 outburst of Aql X-1 via the monitor of all sky X-ray image (MAXI) data. We show that the outburst starting in February 2018 is a member of short-low class in the…

astro-ph.HE2019

-HXMT study of the timing properties of Sco X-1

S. M. Jia, Q. C. Bu, J. L. Qu +106

We present a detailed timing study of the brightest persistent X-ray source Sco X-1 using the data collected by the Hard X-ray Modulation Telescope (-HXMT) from July 2017…

astro-ph.HE2019

Constant cyclotron line energy in Hercules X-1 -- Joint Insight-HXMT and NuSTAR observations

G. C. Xiao, L. Ji, R. Staubert +108

The long-term evolution of the centroid energy of the CRSF in Her X-1 is still a mystery. We report a new measurement from a campaign between {\sl Insight}-HXMT and {\sl NuSTAR} pe…

astro-ph.HE2017★ 11 cited

EAS age determination from the study of the lateral distribution of charged particles near the shower axis with the ARGO-YBJ experiment

YBJ Collaboration, B. Bartoli, P. Bernardini +69

The ARGO-YBJ experiment, a full coverage extensive air shower (EAS) detector located at high altitude (4300 m a.s.l.) in Tibet, China, has smoothly taken data, with very high stabi…

astro-ph.HE2015★ 63 cited

4.5 years multi-wavelength observations of Mrk 421 during the ARGO-YBJ and Fermi common operation time

B. Bartoli, P. Bernardini, X. J. Bi +68

We report on the extensive multi-wavelength observations of the blazar Markarian 421 (Mrk 421) covering radio to gamma-rays, during the 4.5 year period of ARGO-YBJ and Fermi common…

astro-ph.HE2015★ 127 cited

The Knee of the Cosmic Hydrogen and Helium Spectrum below 1 PeV Measured by ARGO-YBJ and a Cherenkov Telescope of LHAASO

B. Bartoli, P. Bernardini, X. J. Bi +93

The measurement of cosmic ray energy spectra, in particular for individual species, is an essential approach in finding their origin. Locating the "knees" of the spectra is an impo…

astro-ph.HE2014★ 99 cited

Identification of the TeV Gamma-ray Source ARGO J2031+4157 with the Cygnus Cocoon

YBJ Collaboration, B. Bartoli, P. Bernardini +80

The extended TeV gamma-ray source ARGO J2031+4157 (or MGRO J2031+41) is positionally consistent with the Cygnus Cocoon discovered by -LAT at GeV energies in the Cygnus super…

astro-ph.HE2013★ 84 cited

TeV gamma-ray survey of the Northern sky using the ARGO-YBJ detector

YBJ Collaboration, B. Bartoli, P. Bernardini +94

The ARGO-YBJ detector is an extensive air shower array that has been used to monitor the northern -ray sky at energies above 0.3 TeV from 2007 November to 2013 January. In this…

astro-ph.HE2013

Medium scale anisotropy in the TeV cosmic ray flux observed by ARGO-YBJ

YBJ Collaboration

Measuring the anisotropy of the arrival direction distribution of cosmic rays provides important information on the propagation mechanisms and the identification of their sources.…

astro-ph.HE2012★ 30 cited

Measurement of the cosmic ray antiproton/proton flux ratio at TeV energies with the ARGO-YBJ detector

YBJ Collaboration

Cosmic ray antiprotons provide an important probe to study the cosmic ray propagation in the interstellar space and to investigate the existence of dark matter. Acting the Earth-Mo…

astro-ph.HE2012★ 57 cited

Observation of TeV gamma rays from the Cygnus region with the ARGO-YBJ experiment

B. Bartoli, P. Bernardini, X. J. Bi +100

We report the observation of TeV gamma-rays from the Cygnus region using the ARGO-YBJ data collected from 2007 November to 2011 August. Several TeV sources are located in this regi…

astro-ph.HE2011★ 75 cited

Long-term monitoring of the TeV emission from Mrk 421 with the ARGO-YBJ experiment

YBJ Collaboration, B. Bartoli, P. Bernardini +105

ARGO-YBJ is an air shower detector array with a fully covered layer of resistive plate chambers. It is operated with a high duty cycle and a large field of view. It continuously mo…