J. N. Zhou

Investigating pulsar wind nebula DA 495: Insights from LHAASO and multi-wavelength observations

Zhen Cao, F Aharonian, YX Bai, Y.W Bao et autres

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A giant Peanut-shaped ultra-high-energy γ-ray emitter off the galactic plane

Z. Cao, F. Aharonian, Yu Bai, Y.W. Bao et autres

LHAASO Observations of Mrk 421 during 2021 March–2024 March: A Comprehensive Very-high-energy Catalog of Multitimescale Outbursts and Its Time-averaged Behavior

Z. Cao, F. Aharonian, Yu Bai, Y. W. Bao et autres

Abstract The Large High Altitude Air Shower Observatory (LHAASO) monitors sources within its field of view for up to 7 hr daily, achieving a duty cycle exceeding 98% and an annual point-source sensitivity of 1.5% Crab units (CU) in the very-high-energy (VHE) …

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Energy-Dependent Shifts of Medium-Scale Anisotropies in Very-High-Energy Cosmic Rays Observed by LHAASO-KM2A

Anonymous, F. Aharonian, Y. X. Bai, Y. W. Bao et autres

Small deviations from isotropy in the arrival directions of Galactic cosmic rays serve as a unique probe of the local magnetic environment. In this Letter, we report observations of medium-scale anisotropies at energies above 10 TeV using the LHAASO-KM2A array. Our analysis …

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Transient Large-Scale Anisotropy in TeV Cosmic Rays due to an Interplanetary Coronal Mass Ejection

Zhen Cao, F. Aharonian, Y. X. Bai, Y. W. Bao et autres

Large- or medium-scale cosmic ray anisotropy at TeV energies has not previously been confirmed to vary with time. Transient anisotropy changes have been observed below 150 GeV, especially near the passage of an interplanetary shock and coronal mass ejection containing a magnetic …

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Effect of electron beam surface melting on the microstructure and corrosion behavior of Ti-4Al-4Zr-2Sn-1.5Mo-Nb-V alloy

Menghao Zhong, Baoxian Su, Yinling Jin, Ganggang Cui et autres

Improving the corrosion resistance of titanium alloys is essential for their long-term performance in marine environments. This study investigates the effect of electron beam surface melting (EBSM) on the microstructure and corrosion behavior of a Ti-4Al-4Zr-2Sn-1.5Mo-Nb-V alloy. The EBSM induces the formation …

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An extreme particle accelerator powered by pulsar PSR J1849−0001

Zhen Cao, F. Aharonian, Y. X. Bai, Y. W. Bao et autres

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Evidence of Cosmic-Ray Acceleration up to Sub-PeV Energies in the Supernova Remnant IC 443

Zhen Cao, F. Aharonian, Yu Bai, Y. W. Bao et autres

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An Enigmatic PeVatron in an Area around H ii Region G35.6−0.5

Z. Cao, F Aharonian, Axikegu, Yuting Bai et autres

Abstract Identifying Galactic PeVatrons (PeV particle accelerators) from ultrahigh-energy (UHE, >100 TeV) γ-ray sources plays a crucial role in revealing the origin of Galactic cosmic rays. The UHE source 1LHAASO J1857+0203u is suggested to be associated with HESS J1858+020, which may be …

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An Economic Analysis of the Demand for Overseas Higher Education with Survey Data from China: Investment or Consumption?

J. N. Zhou, Yaxing Zhang, Jingming Xu

cn (code pays fourni par la source)

Detection of Very High-energy Gamma-Ray Emission from the Radio Galaxy M87 with LHAASO

Z. Cao, F Aharonian, Axikegu, Yuting Bai et autres

Abstract The nearby radio galaxy M87 is a very high-energy (VHE) gamma-ray emitter established by observations with ground-based gamma-ray detectors. Here we report the long-term monitoring of M87 from 2021 to 2024 with the Large High Altitude Air Shower Observatory (LHAASO). M87 …

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Evidence for particle acceleration approaching PeV energies in the W51 complex

Z. Cao, F Aharonian, Axikegu, Y.X Bai et autres

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