Results 21 to 30 of about 133 (107)

RESULTS OF JOINT OBSERVATIONS WITH SOLAR SPECTROPOLARIMETER OF METER RANGE WAVELENGTHS AND OTHER INSTRUMENTS

open access: yesSolar-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

The Next Plan of the Nobeyama Radioheliograph [PDF]

open access: yesInternational 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

Radioheliograph Observations of Microwave Bursts with Zebra Structures [PDF]

open access: yesSolar 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

Microwave Perspective on Magnetic Breakout Eruption

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Microwave maps may provide critical information on the flux rope interaction and the breakout eruption if their polarization is measured with high precision.
Jeongwoo Lee, Jeongwoo Lee, Jeongwoo Lee
doaj   +1 more source

Characteristics of the Accelerated Electrons Moving along the Loop Derived from Cyclical Microwave Brightenings at the Footpoints

open access: yesThe 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

DIAGNOSTICS OF PLASMA JETS IN THE SOLAR CORONA

open access: yesSolar-Terrestrial Physics, 2021
The paper discusses the diagnostics of plasma jets in the solar corona with the use of data from modern space- and ground-based telescopes observing the Sun in the extreme ultraviolet (EUV) and micro- wave bands.
S.A. Anfinogentov   +4 more
doaj   +1 more source

Astronomical Massive Data Processing Technology

open access: yes, 2020
Advances in Astronomy, Volume 2020, Issue 1, 2020.
Feng Wang   +4 more
wiley   +1 more source

CORONAL JETS AS A CAUSE OF MICROWAVE NEGATIVE BURSTS

open access: yesSolar-Terrestrial Physics, 2020
We have investigated the cause of three “isolated” negative radio bursts recorded one after another at several frequencies in the 1–17 GHz range at the Nobeyama Radio Observatory, Ussuriysk Astrophysical Observatory, and Learmonth Solar Observatory on ...
I.V. Kuzmenko
doaj   +1 more source

Strongest Coronal Magnetic Fields in Solar Cycles 23 and 24: Probing, Statistics, and Implications

open access: yesThe 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

The Nancay Multifrequency Radioheliograph [PDF]

open access: yesHighlights 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

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