Results 11 to 20 of about 1,286 (129)
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
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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
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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
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Scale sequentially CLEAN for Mingantu Spectral Radioheliograph
Solar-Terrestrial Physics, 2019 MingantU SpEctral Radioheliograph (MUSER) is a solar-dedicated radio heliograph, adopting aperture synthesis technique to image the Sun in the frequency range of 0.4 GHz to 15 GHz.
Jun Cheng, Yihua Yan, Dong Zhao, Long Xu
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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
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Observations of coronal holes with the Siberian Radioheliograph
Solar-Terrestrial PhysicsMulti-wavelength observations of a coronal hole (CH) with two-dimensional spatial resolution have been made for the first time in the frequency range from 2.8 to 12 GHz.
Globa M. V. +2 more
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A 96-antenna radioheliograph [PDF]
Research in Astronomy and Astrophysics, 2014 Here we briefly present some design approaches for a multifrequency 96-antenna radioheliograph. The array antenna configuration, transmission lines and digital receivers are the main focus of this work. The radioheliograph is a T-shaped centrally-condensed radiointerferometer operating at the frequency range 4-8~GHz. The justification for the choice of
Lesovoi, S. V. +3 more
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Over seven decades of solar microwave data obtained with Toyokawa and Nobeyama Radio Polarimeters
Geoscience Data Journal, Volume 10, Issue 1, Page 114-129, January 2023., 2023 Upper left: Toyokawa Radio Polarimeter (ToRP: Behnde) and 8‐element solar grating array (Front). Upper Right: Nobeyama Radio Polarimeter (NoRP). Lower: Long‐term variation of microwave fluxes (colors) and sunspot (black) from the 1950s to 2021. Abstract Monitoring observations of solar microwave fluxes and their polarization began in Japan during the ...
Masumi Shimojo, Kazumasa Iwai
wiley +1 more source
Earth and Space Science, Volume 7, Issue 3, March 2020., 2020 Abstract Solar prominences are structures of importance because of their role in polar field reversal. We study the long‐term variation of the time latitude distribution of solar prominences in this article. To accomplish this, we primarily used the digitized disc‐blocked Ca II K spectroheliograms as recorded from Kodaikanal Solar Observatory for the ...
Subhamoy Chatterjee +4 more
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Burst Locating Capability of the Korean Solar Radio Burst Locator (KSRBL) [PDF]
Journal of Astronomy and Space Sciences, 2015 The Korean Solar Radio Burst Locator (KSRBL) is a solar radio spectrograph observing the broad frequency range from 0.245 to 18 GHz with the capability of locating wideband gyrosynchrotron bursts.
Jung-Eun Hwangbo +6 more
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