Results 21 to 30 of about 606 (135)
3-CM RADIOHELIOGRAPHA 3-cm radioheliograph has been completed in July 1969 and ever since test observations have been made. The T-shaped antenna is composed of 32+16 dishes, and the resolution is 1.'6 and 2.'4 before and after smoothing in the direction near the zenith. The 'shutter speed' is about 20 minutes, and the map of circular polarization can be obtained as well ...
KOBAYASHI, Shoji +6 more
openaire +2 more sources
8-CM RADIOHELIOGRAPHAn 8-cm radioheliograph which has been under construction since 1972 is almost completed. It has a maximum resolving power of 1.5 .arc min. and can be operated in various operational modes combined with the existing high-resolution compound interferometer. The minimum time necessary for taking a map is 40 seconds. A two-dimensional mapping will be used
KOBAYASHI, Shoji +6 more
openaire +2 more sources
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
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
doaj +1 more source
The Next Plan of the Nobeyama Radioheliograph [PDF]
International Astronomical Union Colloquium, 1994 A high time- and spatial-resolution radio interferometer for solar observations has been constructed at Nobeyama (Figure I.; Nakajima et al. 1994). The Nobeyama Radioheliograph consists of 84 antennas, 0.8m in diameter, arranged on a T-shape lines of 500m in the EW and 220m in the NS directions.
T. Takano +15 more
openaire +1 more source
Solar-Terrestrial Physics, 2022 Solar radiation is emitted in the wide frequency range from gamma to radio emission. Hence, joint observations from different instruments and frequency ranges let us to complete full representation of the evolution of solar events and confirm ...
N.O. Muratova +2 more
doaj +1 more source
Radioheliograph array for the solar atmospheric dynamics [PDF]
SCIENTIA SINICA Physica, Mechanica & Astronomica, 2019 Studying the origin of solar activities, revealing the basic laws of solar activities and forecasting the violent solar eruptions are not only important problems in astronomy, but also the basis of protecting the near-Earth space environment and the many high-technology systems.
YiHua YAN +4 more
openaire +1 more source
A Study on Non-coplanar Baseline Effects for Mingantu Spectral Radioheliograph
, 2022 As a dedicated solar radioheliograph, the MingantU SpEctral RadioHeliograph (MUSER) has a maximum baseline of more than 3000 meters and a frequency range of 400 MHz -- 15 GHz.
Mei, Ying +4 more
core +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
The Astrophysical Journal Letters, 2023 Many particles are accelerated during solar flares. To understand the acceleration and propagation processes of electrons, we require the pitch-angle distributions of the particles.
Keitarou Matsumoto +2 more
doaj +1 more source