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The low frequency array (LOFAR), is the first radio telescope designed with the capability to measure radio emission from cosmic-ray induced air showers in parallel with interferometric observations. In the first $\sim 2\,\mathrm{years}$ of…

天体物理仪器与方法 · 物理学 2014-06-27 P. Schellart , A. Nelles , S. Buitink , A. Corstanje , J. E. Enriquez , H. Falcke , W. Frieswijk , J. R. Hörandel , A. Horneffer , C. W. James , M. Krause , M. Mevius , O. Scholten , S. ter Veen , S. Thoudam , M. van den Akker , A. Alexov , J. Anderson , I. M. Avruch , L. Bähren , R. Beck , M. E. Bell , P. Bennema , M. J. Bentum , G. Bernardi , P. Best , J. Bregman , F. Breitling , M. Brentjens , J. Broderick , M. Brüggen , B. Ciardi , A. Coolen , F. de Gasperin , E. de Geus , A. de Jong , M. de Vos , S. Duscha , J. Eislöffel , R. A. Fallows , C. Ferrari , M. A. Garrett , J. Grießmeier , T. Grit , J. P. Hamaker , T. E. Hassall , G. Heald , J. W. T. Hessels , M. Hoeft , H. A. Holties , M. Iacobelli , E. Juette , A. Karastergiou , W. Klijn , J. Kohler , V. I. Kondratiev , M. Kramer , M. Kuniyoshi , G. Kuper , P. Maat , G. Macario , G. Mann , S. Markoff , D. McKay-Bukowski , J. P. McKean , J. C. A. Miller-Jones , J. D. Mol , D. D. Mulcahy , H. Munk , R. Nijboer , M. J. Norden , E. Orru , R. Overeem , H. Paas , M. Pandey-Pommier , R. Pizzo , A. G. Polatidis , A. Renting , J. W. Romein , H. Röttgering , A. Schoenmakers , D. Schwarz , J. Sluman , O. Smirnov , C. Sobey , B. W. Stappers , M. Steinmetz , J. Swinbank , Y. Tang , C. Tasse , C. Toribio , J. van Leeuwen , R. van Nieuwpoort , R. J. van Weeren , N. Vermaas , R. Vermeulen , C. Vocks , C. Vogt , R. A. M. J. Wijers , S. J. Wijnholds , M. W. Wise , O. Wucknitz , S. Yatawatta , P. Zarka , A. Zensus

The particle lateral distribution function (LDF) of air showers at a given altitude is sensitive to the mass composition and primary energy of cosmic rays. Studies of the LDF are difficult to perform due to experimental effects such as…

高能天体物理现象 · 物理学 2019-08-22 J. A. Morales-Soto , J. C. Arteaga-Velázquez , J. D. Álvarez

The LOPES experiment at the Karlsruhe Institute of Technology, Germany, has been measuring radio emission of air showers for almost 10 years. For a better understanding of the emission process a detailed comparison of data with simulations…

Since 2003, significant efforts have been devoted to the understanding of the radio emission of extensive air shower in the range [20-200] MHz. Despite some studies led until the early nineties, the [1-10] MHz band has remained unused for…

Observations of light isotopes in cosmic rays provide information on their origin and propagation in the Galaxy. Using the data collected by AMS-01 in the STS- 91 space mission, we compare the measurements on 1H, 2H, 3He and 4He with…

高能天体物理现象 · 物理学 2017-08-23 N. Tomassetti

The lateral density distributions (LDD) of inclined cosmic ray air shower are asymmetric and the corresponding iso-density contours are of increasing eccentric ellipses with zenith angles of different showers. The polar asymmetry of the…

高能天体物理现象 · 物理学 2022-03-08 Animesh Basak , Rajat K. Dey

We analyse the sensitivity of geosynchrotron radio emission from inclined extensive air showers to the energy and mass of primary cosmic rays. We demonstrate that radio emission measurements at suitable lateral distances can infer both the…

天体物理学 · 物理学 2007-07-26 T. Huege , R. Ulrich , R. Engel

The search for radio signals from exoplanets or star-planet interactions is a topic of major scientific interest, as it is likely the best way to detect and measure a planetary magnetic field and, therefore, to probe the inner structure of…

地球与行星天体物理 · 物理学 2026-03-11 C. K. Louis , A. Loh , P. Zarka , L. Lamy , E. Mauduit , J. N. Girard , J. -M. Griessmeier , B. Cecconi , Q. Nénon , S. Corbel

Composition measurement of cosmic rays (CRs) around the knee of the CR energy spectrum is crucial for studying the processes of particle acceleration and propagation of Galactic CRs. The Square Kilometer Array (KM2A) of Large High Altitude…

高能天体物理现象 · 物理学 2024-07-19 Xishui Tian , Zhuo Li , Quanbu Gou , Hengying Zhang , Huihai He , Cunfeng Feng , Giuseppe Di Sciascio

We present time-domain Monte Carlo simulations of radio emission from cosmic ray air showers in the scheme of coherent geosynchrotron radiation. Our model takes into account the important air shower characteristics such as the lateral and…

天体物理学 · 物理学 2009-11-10 Tim Huege , Heino Falcke

The mass composition of high energy cosmic rays above $10^{17}$ eV is a crucial issue to solve some open questions in astrophysics such as the acceleration and propagation mechanisms. Unfortunately, the standard procedures to identify the…

天体物理学 · 物理学 2008-11-26 F. Catalani , J. A. Chinellato , V. de Souza , J. Takahashi , G. M. S. Vasconcelos

Cosmic-ray air shower detection with the low-frequency part of the Square Kilometre Array (SKA) radio telescope is envisioned to yield very high precision measurements of the particle composition of cosmic rays between $10^{16}$ and…

高能天体物理现象 · 物理学 2025-06-24 A. Corstanje , S. Buitink , S. Bouma , M. Desmet , J. R. Hörandel , T. Huege , P. Laub , K. Mulrey , A. Nelles , O. Scholten , K. Terveer , S. Thoudam , K. Watanabe

{Measurements of cosmic-ray composition based on air-shower measurements rely mostly on the determination of the position of the shower maximum ($X_\mathrm{max}$). One efficient technique is to image the development of the air shower using…

高能天体物理现象 · 物理学 2025-06-03 V. B. Jhansi , S. Thoudam , S. Buitink , A. Corstranje , M. Desmet , J. R. Horandel , T. Heuge , K. Mulrey , O. Scholten

Codalema is one of the experiments devoted to the detection of ultra high energy cosmic rays by the radio method. The main objective is to study the features of the radio signal induced by the development in the atmosphere of extensive air…

高能天体物理现象 · 物理学 2012-11-15 Ahmed Rebai

Based on CORSIKA and REAS2 simulations, we investigate the dependence of geosynchrotron radio emission from extensive air showers on the energy of the primary cosmic ray and the depth of the shower maximum. It is found that at a…

天体物理学 · 物理学 2009-11-13 T. Huege , R. Ulrich , R. Engel

We present an analysis of intermittent processes occurred during the impulsive phase of the flare SOL2012-03-13, using hard X-rays and submillimeter radio data. Intermittency is a key characteristic in turbulent plasmas and have been a…

太阳与恒星天体物理 · 物理学 2016-06-22 C. Guillermo Giménez de Castro , Paulo J. A. Simões , Jean-Pierre Raulin , Odilon M. Guimarães

The detection of extensive air showers (EAS) through their radio signal is becoming one of the most promising techniques for the study of Neutrinos and Cosmic rays at the highest energies. For the design, optimization and characterization…

天体物理仪器与方法 · 物理学 2021-03-24 Matias Tueros , Anne Zilles

This study aims to investigate the ambiguous source and the underlying physical processes of the solar type III radio bursts that occurred on April 3, 2019, through the utilization of multiwavelength observations from the LOFAR radio…

太阳与恒星天体物理 · 物理学 2023-12-20 Mohamed Nedal , Kamen Kozarev , Peijin Zhang , Pietro Zucca

The aim of our paper is to investigate the properties of the classical phase-dispersion minimization (PDM), analysis of variance (AOV), string-length (SL), and Lomb-Scargle (LS) power statistics from a statistician's perspective. We confirm…

地球与行星天体物理 · 物理学 2024-12-03 Naomi Giertych , Ahmed Shaban , Pragya Haravu , Jonathan P Williams