Results 1 to 10 of about 133 (107)
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 ...
Sergey Lesovoi +2 more
exaly +7 more sources
A New Image Restoration Method for MUSER
Advances in Astronomy, 2019 Solar radio images in decimeter wave range consist of many complicated components including a disk component, some bright and weak compact sources, and many diffuse features.
Wei Wang, Yihua Yan
doaj +2 more sources
Multiwave Siberian Radioheliograph
Solar-Terrestrial Physics, 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.
Altyntsev A.T. +13 more
doaj +4 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, Lihong Geng
exaly +3 more sources
Solar Radio Wide‐Band Spectroscopy and Imaging Facilities of the Chinese Meridian Project Phase II
Space WeatherSolar eruptions, including flares and coronal mass ejections, are the most energetic phenomena in the solar system. These explosive events accelerate high‐energy particles and generate electromagnetic radiation from radio to gamma‐ray wavelengths ...
Yihua Yan +19 more
doaj +2 more sources
Correlation plots of the Siberian Radioheliograph
Solar-Terrestrial Physics, 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.
doaj +5 more sources
CALIBRATION OF SIBERIAN RADIOHELIOGRAPH IMAGES
Solar-Terrestrial Physics, 2019 We discuss the method for automatic calibration of solar radio images derived from the first stage of the multiwave Siberian Radioheliograph (SRH-48). SRH is a 48-element T-shaped radiointerferometer in the 4–8 GHz frequency range. Since the end of 2017,
Fedotova A.Yu. +4 more
doaj +4 more sources
Observation of eruptive events with the Siberian Radioheliograph
Solar-Terrestrial Physics, 2018 We describe methods for monitoring eruption activity with the first phase of the multiwave Siberian Radioheliograph (SRH-48). We give examples of the recorded eruptive events: 1) rise of a prominence above the limb observed in the radio map sequence of ...
Fedotova A.Yu. +4 more
doaj +4 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