Results 21 to 30 of about 1,264 (121)
A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]
, 2016 In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun +6 more
core +1 more source
Multilevel Analysis of Oscillation Motions in Active Regions of the Sun [PDF]
, 2011 We present a new method that combines the results of an oscillation study made in optical and radio observations. The optical spectral measurements in photospheric and chromospheric lines of the line-of-sight velocity were carried out at the Sayan Solar ...
Abramov-Maximov, V. E. +4 more
core +1 more source
Microwave Perspective on Magnetic Breakout Eruption
Frontiers 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
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
DIAGNOSTICS OF PLASMA JETS IN THE SOLAR CORONA
Solar-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
Behavior of Solar Cycles 23 and 24 Revealed by Microwave Observations [PDF]
, 2012 Using magnetic and microwave butterfly diagrams, we compare the behavior of solar polar regions to show that (i) the polar magnetic field and the microwave brightness temperature during the solar minimum substantially diminished during the cycle 23/24 ...
Altrock +14 more
core +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
Astronomical Massive Data Processing Technology
, 2020 Advances in Astronomy, Volume 2020, Issue 1, 2020.
Feng Wang +4 more
wiley +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
CORONAL JETS AS A CAUSE OF MICROWAVE NEGATIVE BURSTS
Solar-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