Results 31 to 40 of about 1,286 (129)
Strongest Coronal Magnetic Fields in Solar Cycles 23 and 24: Probing, Statistics, and Implications
The Astrophysical Journal, 2023 A strong coronal magnetic field, when present, manifests itself as bright microwave sources at high frequencies produced by the gyroresonant (GR) emission mechanism in thermal coronal plasma.
Viktor V. Fedenev +2 more
doaj +1 more source
IEEE Access, 2021 Time-frequency synchronization plays an important role in the construction of solar radio telescopes (such as heliograph and interferometry). In the development of a synchronization system, time-frequency signal is divided and transmitted to each antenna
Yuqing Liu +5 more
doaj +1 more source
Astronomical Massive Data Processing Technology
, 2020 Advances in Astronomy, Volume 2020, Issue 1, 2020.
Feng Wang +4 more
wiley +1 more source
Comparison of solar radio and EUV synoptic limb charts during the present solar maximum [PDF]
, 2016 The present solar cycle is particular in many aspects: it had a delayed rising phase, it is the weakest of the last 100 years, and it presents two peaks separated by more than one year.
de Castro, C. G. Giménes +3 more
core +2 more sources
Association of radio polar cap brightening with bright patches and coronal holes [PDF]
, 2017 Radio-bright regions near the solar poles are frequently observed in Nobeyama Radioheliograph (NoRH) maps at 17 GHz, and often in association with coronal holes. However, the origin of these polar brightening has not been established yet. We propose that
Costa, Joaquim E. R. +5 more
core +2 more sources
The Nancay Multifrequency Radioheliograph [PDF]
Highlights of Astronomy, 1986 The Nançay Multifrequency Radioheliograph is an extension of the previous Mark III instrument described in Solar Radioheliograph Group (1983). The table I summarizes the characteristics of the instrument.
openaire +1 more source
Radioheliograph Observations of Microwave Bursts with Zebra Structures [PDF]
Solar Physics, 2011 The so-called zebra structures in radio dynamic spectra, specifically their frequencies and frequency drifts of emission stripes, contain information on the plasma parameters in the coronal part of flare loops. This paper presents observations of zebra structures in a microwave range. Dynamic spectra were recorded by Chinese spectro-polarimeters in the
Altyntsev, A. T. +4 more
openaire +2 more sources
Simulating Siberian Radioheliograph response to the quiet Sun
Solar-Terrestrial Physics, 2018 The Siberian Radioheliograph (SRH) correlation plot is the time dependence of the sum of absolute values of complex correlations over all baselines. These plots are built for each operating frequency of SRH.
Lesovoi S.V., Kobets V.S.
doaj +1 more source
Open Astronomy, 2022 As shown in the first results of MHD simulations in the real scale of time, above the active region (AR) 10365, during the first flare M 1.9 (05/26/2003 05:34) at a height of 16–18 mm (lower corona), a singular line of magnetic field appears.
Borisenko Alexey Vasilevich +2 more
doaj +1 more source
Spectral Analysis of Solar Radio Type III Bursts from 20 kHz to 410 MHz
The Astrophysical Journal, 2022 We present the statistical analysis of the spectral response of solar radio type III bursts over the wide frequency range between 20 kHz and 410 MHz. For this purpose, we have used observations that were carried out using both spaced-based (Wind/Waves ...
K. Sasikumar Raja +12 more
doaj +1 more source