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Siberian Radioheliograph: first results
Solnečno-zemnaâ Fizika, 2017 Regular observations of active processes in the solar atmosphere have been started using the first stage of the multiwave Siberian Radioheliograph (SRH), a T-shaped 48-antenna array with a 4–8 GHz operating frequency range and a 10 MHz instantaneous ...
Lesovoi S.V. +11 more
exaly +7 more sources
The Multifrequency Siberian Radioheliograph [PDF]
Solar Physics, 2012 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.
A. T. Altyntsev +13 more
exaly +4 more sources
Multiwave Siberian Radioheliograph
Solnečno-zemnaâ Fizika, 2020 The article discusses characteristics, fundamental and applied tasks of the Siberian Radioheliograph that is developed at the ISTP SB RAS Radio Astrophysical Observatory and spectropolarimetric complex that measures the total flux of solar radio emission.
Анастасия Федотова +1 more
exaly +6 more sources
Correlation plots of the Siberian Radioheliograph
Solnečno-zemnaâ Fizika, 2017 The Siberian Solar Radio Telescope [Grechnev et al., 2011] is now being upgraded. The upgrading is aimed at providing the aperture synthesis imaging in the 4–8 GHz frequency range [Lesovoi et al., 2011, 2014] instead of the single-frequency direct ...
Lesovoi S.V., Kobets V.S.
exaly +7 more sources
MEASUREMENT OF SIBERIAN RADIOHELIOGRAPH CABLE DELAYS
Solar-Terrestrial Physics, 2021 To achieve the maximum dynamic range of solar radio images obtained using aperture synthesis in relatively wide frequency bands 0.1−0.5 % of the operating frequency, it is necessary to compensate the signal propagation delays in the antenna receive path ...
S.V. Lesovoi, M.V. Globa
doaj +4 more sources
Mingantu Spectral Radioheliograph for Solar and Space Weather Studies
Frontiers in Astronomy and Space Sciences, 2021 The Chinese Spectral Radioheliograph (CSRH) covering 400 MHz-15 GHz frequency range was constructed during 2009–2016 in Mingantu Observing Station, National Astronomical Observatories, Chinese Academy of Sciences at Zhengxiangbaiqi, Inner Mongolia of ...
Yihua Yan, Fei Liu, Linjie Chen
exaly +3 more sources
CALIBRATION OF SIBERIAN RADIOHELIOGRAPH ANTENNA GAINS USING REDUNDANCY
Solar-Terrestrial Physics, 2021 The paper describes application of standard gain calibration using redundancy for a 48-antenna prototype of Siberian Radioheliograph. Traditionally, for calibration, the visibilities were measured only between adjacent antennas since they have the ...
M.V. Globa, S.V. Lesovoi
doaj +4 more sources
Solar-Terrestrial Physics, 2021 We analyze the presence of a microwave neutral-line-associated source (NLS) in a super-active region NOAA 12673, which produced a number of geo-effective events in September 2017.
A.V. Kudriavtseva +3 more
doaj +1 more source
Fine Structure of Solar Metric Radio Bursts: ARTEMIS-IV/JLS and NRH Observations
Universe, 2023 Radio bursts provide important diagnostics of energetic phenomena of the Sun. In particular, bursts in decimetric and metric wavelengths probe the physical conditions and the energy release processes in the low corona as well as their association with ...
Costas Alissandrakis +3 more
doaj +1 more source
Multi-wavelength spatially resolved analysis of quasi-periodic pulsations in a solar flare [PDF]
, 2008 Aims. We aim to perform a spatially resolved analysis of a quasi-periodic pulsation event from 8th May 1998 using microwave data from the Nobeyama Radioheliograph and Radiopolarimeter, and X-ray data from the Yohkoh satellite. Methods.
A. R. Inglis +20 more
core +1 more source