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Observation of Interplanetary Scintillation (IPS) provides an important and effective way to study the solar wind and the space weather. A series of IPS observations were conducted by the Five-hundred-meter Aperture Spherical radio…

Solar and Stellar Astrophysics · Physics 2022-08-03 Li-Jia Liu , Bo Peng , Lei Yu , Bin Liu , Ji-Guang Lu , Ye-Zhao Yu , Hong-Wei Xi , Ming Xiong , O. Chang

Solar radio type III bursts are believed to be the most sensitive signature of near-relativistic electron beam propagation in the corona. A solar radio type IIIb-III pair burst with fine frequency structures, observed by the Low Frequency…

Solar and Stellar Astrophysics · Physics 2018-04-11 Xingyao Chen , Eduard P. Kontar , Sijie Yu , Yihua Yan , Jing Huang , Baolin Tan

We present complex radio bursts recorded by the radiospectrograph ARTEMIS-IV in the active period of January 2005. The wide spectral coverage of this recorder, in the 650-20 MHz range, permits an analysis of the radio bursts from the base…

Solar and Stellar Astrophysics · Physics 2010-09-23 K. Bouratzis , P. Preka-Papadema , A. Hillaris , X. Moussas , C. Caroubalos , V. Petoussis , P. Tsitsipis , A. Kontogeorgos

Accurate estimation of solar irradiance is essential for reliable modelling of solar photovoltaic (PV) power production. In Ireland's highly variable maritime climate, where ground-based measurement stations are sparsely distributed,…

Applications · Statistics 2025-09-26 Maeve Upton , Eamonn Organ , Amanda Lenzi , James Sweeney

We show that while the Fourier transform can figure only an "intensity" of a periodic signal, there is an additional information embedded, which is a "coherence" of the signal. Supposing that the periodicity is reflected only on the…

Solar and Stellar Astrophysics · Physics 2022-02-07 Kim Chol-jun

We describe the performance of our latest generations of sensitive wide-band high-resolution digital Fast Fourier Transform Spectrometer (FFTS). Their design, optimized for a wide range of radio astronomical applications, is presented.…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 Bernd Klein , Stefan Hochgürtel , Ingo Krämer , Andreas Bell , Klaus Meyer , Rolf Güsten

The interface between the bright solar surface and the million-degree corona continues to hold the key to many unsolved problems in solar physics. Advances in instrumentation now allow us to observe the dynamic structures of the solar…

Solar and Stellar Astrophysics · Physics 2019-02-13 Tiago M. D. Pereira

CALLISTO is a radio spectrometer designed to monitor the transient radio emissions/bursts originated from the solar corona in the frequency range $45-870$ MHz. At present, there are $\gtrsim 150$ stations (together forms an e-CALLISTO…

Instrumentation and Methods for Astrophysics · Physics 2020-07-01 Ravindra Pawase , K. Sasikumar Raja

Quasi-periodic fast propagating (QFP) wave trains observed in the solar corona after some energetic events (solar flares, coronal mass ejections, jets) open possibilities for diagnostics of spatial and temporal scales of the impulsive…

Solar and Stellar Astrophysics · Physics 2026-05-14 V. A. Dmitriev , E. G. Kupriyanova , A. V. Mikhalchuk

The rapid growth of solar data is driving changes in the typical workflow and algorithmic approach to solar data analysis. We present recently deployed tools to aid this evolution and layout the path for future development. The majority of…

Instrumentation and Methods for Astrophysics · Physics 2018-07-02 Neal Hurlburt , Sam Freeland , Ryan Timmons

We present a statistical study on the observed solar radio burst emission associated with the origin of in situ detected solar energetic particles. Several proton event catalogs in the period 1996$-$2016 are used. At the time of appearance…

Solar and Stellar Astrophysics · Physics 2017-11-28 Rositsa Miteva , Susan W. Samwel , Vratislav Krupar

Polarimetric radio observations of the Sun can provide rich information about emission mechanisms and the propagation medium. For the past five decades, solar polarimetric studies at low radio frequencies have almost always assumed the…

Solar and Stellar Astrophysics · Physics 2025-08-05 Soham Dey , Devojyoti Kansabanik , Divya Oberoi , Surajit Mondal

Radio astronomy file formats are now required to store wide frequency bandwidths and multiple simultaneous receiver beams and must be able to account for versatile observing modes and numerous calibration strategies. The need to capture and…

The Siberian Solar Radio Telescope (SSRT) is a solar-dedicated directly-imaging interferometer observing the Sun at 5.7 GHz. The SSRT operates in the two-dimensional mode since 1996. The imaging principle of the SSRT restricts its…

Solar and Stellar Astrophysics · Physics 2014-10-20 Alexey Kochanov , Sergey Anfinogentov , Dmitry Prosovetsky , George Rudenko , Victor Grechnev

The design and later use of modern spectropolarimeters and magnetographs require a number of tolerance specifications that allow the developers to build the instrument and then the scientists to interpret the data accuracy. Such…

Solar and Stellar Astrophysics · Physics 2015-06-05 J. C. del Toro Iniesta , V. Martínez Pillet

Solar flare is one of the most important solar activities which emit all electromagnetic waves in gigantic burst. The radio emission can be used to determine the physical properties of the solar flares. The e-CALLISTO worldwide network is…

Solar and Stellar Astrophysics · Physics 2023-08-04 D P S Nilagarathne , J Adassuriya , H O Wijewardane

Solar power harbors immense potential in mitigating climate change by substantially reducing CO$_{2}$ emissions. Nonetheless, the inherent variability of solar irradiance poses a significant challenge for seamlessly integrating solar power…

Machine Learning · Computer Science 2023-10-24 Oussama Boussif , Ghait Boukachab , Dan Assouline , Stefano Massaroli , Tianle Yuan , Loubna Benabbou , Yoshua Bengio

Secure ranging is poised to play a critical role in several emerging applications such as self-driving cars, unmanned aerial systems, wireless IoT devices, and augmented reality. In this paper, we propose a design of a secure broadcast…

Cryptography and Security · Computer Science 2020-10-28 Tien D. Vo-Huu , Triet D. Vo-Huu , Guevara Noubir

Here we greatly improve Artificial Intelligence (AI)-generated solar farside magnetograms using data sets of Solar Terrestrial Relations Observatory (STEREO) and Solar Dynamics Observatory (SDO). We modify our previous deep learning model…

Solar and Stellar Astrophysics · Physics 2022-10-26 Hyun-Jin Jeong , Yong-Jae Moon , Eunsu Park , Harim Lee , Ji-Hye Baek