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GRANDProto300 (hereafter referred to as GP300) is a pioneering prototype array of the GRAND experiment. It consists of 300 radio antennas and will cover an area of 200 km$^2$ in a radio-quiet region of western China. Serving as a test bench…

高能天体物理现象 · 物理学 2025-07-09 Pengxiong Ma , Yi Zhang , Xing Xu , Bohao Duan , Shen Wang , Kewen Zhang , Pengfei Zhang , Xin Xu

Interferometric measurements with arrays of radio antennas are a powerful and widely used technique in astronomy. Recently, this technique has been revisited for the reconstruction of extensive air showers [1]. This radio-interferometric…

天体物理仪器与方法 · 物理学 2022-12-16 Felix Schlüter , Tim Huege

The Square Kilometre Array (SKA) project is an international effort to build the world's most sensitive radio telescope operating in the 50 MHz to 14 GHz frequency range. Construction of the SKA is divided into phases, with the first phase…

天体物理仪器与方法 · 物理学 2018-08-15 Sascha Schediwy , David Gozzard

The 10-antenna prototype of the multifrequency Siberian radioheliograph is described. The prototype consists of four parts: antennas with broadband front-ends, analog back-ends, digital receivers and a correlator. The prototype antennas are…

天体物理仪器与方法 · 物理学 2012-05-23 S. V. Lesovoi , A. T. Altyntsev , E. F. Ivanov , A. V. Gubin

The current generation of air shower radio arrays has demonstrated that the atmospheric depth of the shower maximum Xmax can be reconstructed with high accuracy. These experiments are now contributing to mass composition studies in the…

We explore the possibilities of measuring the longitudinal profile of individual air showers beyond $X_{\rm max}$ when using very dense radio arrays such as SKA. The low-frequency part of the Square Kilometre Array, to be built in…

Experiment on the study of fluctuation of night glow is conducted on the base of 13 module atmospheric Cherenkov telescope TUNKA-13.Basic task of TUNKA-13 is registration of light from Extended Air Shower (EAS) initiated by primary cosmic…

天体物理学 · 物理学 2007-05-23 O. A. Gress , T. I. Gress , L. V. Pan'kov , Yu. V. Parfenov , Yu. A. Semeney , L. A. Kuzmichev

Investigating the spatial correlation between different emissions in an extended astrophysical source can provide crucial insights into their physical connection, hence it can be the key to understand the nature of the system. The…

天体物理仪器与方法 · 物理学 2021-11-17 Alessandro Ignesti

The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a ground-based air shower array designed to detect Cherenkov light produced in water by secondary particles from atmospheric air showers. In order to improve the sensitivity…

高能天体物理现象 · 物理学 2019-09-02 Dezhi Huang

Radio galaxies host relativistic jets oriented away from our line of sight, making them challenging targets for Very High Energy (VHE, E$>$100 GeV) $\gamma$-ray detectors. Indeed, out of $\sim100$ extragalactic sources detected at $E>100$…

高能天体物理现象 · 物理学 2019-12-04 Roberto Angioni

The Square Kilometre Array (SKA) project is an international effort to build the world's most sensitive radio telescope operating in the 50 MHz to 14 GHz frequency range. Construction of the SKA is divided into phases, with the first phase…

天体物理仪器与方法 · 物理学 2018-07-31 Sascha Schediwy , David Gozzard

The Cherenkov Telescope Array (CTA) will be the next generation of ground based gamma-ray telescopes allowing us to study very high energy phenomena in the Universe. CTA aims to gain about a factor of ten in sensitivity compared to current…

高能天体物理现象 · 物理学 2017-05-23 S. Mangano

GRANDProto300 is the planned 300-antenna pathfinder array of the Giant Radio Array for Neutrino Detection (GRAND), of which the first 100 detection units have been already produced. Its main goal is to demonstrate the viability of the…

天体物理仪器与方法 · 物理学 2023-07-26 Xing Xu , Jianhua Guo , Shen Wang

The Cherenkov Telescope Array (CTA) is the next generation facility of Imaging Atmospheric Cherenkov Telescopes. It will reach unprecedented sensitivity and energy resolution in very-high-energy gamma-ray astronomy. CTA will detect…

天体物理仪器与方法 · 物理学 2019-08-14 M. Doro , M. Daniel , R. de los Reyes , M. Gaug , M. C. Maccarone

The excellent radio frequency transparency of cold polar ice, combined with the coherent Cherenkov emission produced by neutrino-induced showers when viewed at wavelengths longer than a few centimeters, has spurred considerable interest in…

天体物理学 · 物理学 2010-04-30 H. Landsman , L. Ruckman , G. S. Varner

The ARIANNA experiment is currently taking data in its pilot-phase on the Ross ice-shelf. Fully autonomous stations measure radio signals in the frequency range from 100 MHz to 1 GHz. The seven station HRA was completed in December 2014,…

天体物理仪器与方法 · 物理学 2017-04-05 Anna Nelles

We present the DSA-2000: a world-leading radio survey telescope and multi-messenger discovery engine for the next decade. The array will be the first true radio camera, outputting science-ready image data over the 0.7 - 2 GHz frequency…

Accurate reconstruction of the electric field produced by extensive air showers is essential for the radio-detection technique, as the key parameters of interest of the primary particles that generated the showers are the amplitude,…

天体物理仪器与方法 · 物理学 2025-07-11 Kewen Zhang , Lukas Gülzow , Tim Huege , Ramesh Koirala , Pengxiong Ma , Matías Tueros , Xin Xu , Chao Zhang , Pengfei Zhang , Yi Zhang

Digital radio arrays have become an effective tool to measure air showers at energies around and above 100 PeV. Compared to optical techniques, the radio technique is not restricted to clear nights. Thanks to recent progress on…

高能天体物理现象 · 物理学 2022-04-28 Frank G. Schröder

The project of an EAS Cherenkov array in the Tunka valley/Siberia with an area of about 1 km2 is presented. The new array will have a ten times bigger area than the existing Tunka-25 array and will permit a detailed study of the cosmic ray…