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Mingantu Spectral Radioheliograph for Solar and Space Weather Studies

open access: yesFrontiers 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   +12 more
doaj   +1 more source

Longitudinal structures of zonal wind in the thermosphere by the ICON/MIGHTI and the main wave sources

open access: yesEarth, Planets and Space, 2023
In this study, the neutral wind observations from the Michelson Interferometer for Global High-resolution Thermospheric Imaging (MIGHTI) instrument onboard Ionospheric CONnections (ICON) are used to investigate the longitudinal structure of zonal wind ...
Dan Li   +6 more
doaj   +1 more source

Multi-Wavelength Observations of a Failed Filament Eruption and Associated Hovered Coronal Mass Ejection

open access: yesUniverse, 2021
Failed filament eruption remains mysterious on its initiation, magnetic environment, and erupting and failing mechanisms. We present multi-wavelength observations of a failed filament eruption and its associated hovered coronal mass ejection (hovered-CME)
Yin Zhang   +4 more
doaj   +1 more source

The passband integration properties of Birefringent filter

open access: yesScientific Reports, 2021
In this article, we discuss an observation phenomenon where the total amount of photons in the full passband of the Birefringent filter is a constant number that is considered by removing the spectrum of the light source irrespective of the instrument ...
Xiaofan Wang   +3 more
doaj   +1 more source

Solar Activity and Solar Oscillations [PDF]

open access: yesSymposium - International Astronomical Union, 1997
Helioseismology provides us with the tools to probe solar activity. So that we can consider how the solar oscillations are influenced by that activity, we first consider the phenomena that we associate with the active Sun. The surface of the Sun is not quiet but shows evidence of convection on a wide range of scales from a few hundred kilometres ...
openaire   +1 more source

Solar cycle variation in solar f-mode frequencies and radius [PDF]

open access: yes, 2000
Using data from the Global Oscillation Network Group (GONG) covering the period from 1995 to 1998, we study the change with solar activity in solar f-mode frequencies.
AD Fiala   +17 more
core   +2 more sources

Guided filtering for solar image/video processing

open access: yesSolar-Terrestrial Physics, 2017
A new image enhancement algorithm employing guided filtering is proposed in this work for enhancement of solar images and videos, so that users can easily figure out important fine structures imbedded in the recorded images/movies for solar observation ...
Long Xu, Yihua Yan, Jun Cheng
doaj   +1 more source

Commission 10: Solar Activity [PDF]

open access: yes, 2007
Commission 10 aims at the study of various forms of solar activity, including networks, plages, pores, spots, fibrils, surges, jets, filaments/prominences, coronal loops, flares, coronal mass ejections (CMEs), solar cycle, microflares, nanoflares ...
Benz, A.O.   +10 more
core   +2 more sources

Changes in the sensitivity of solar p-mode frequency shifts to activity over three solar cycles [PDF]

open access: yes, 2018
Low-degree solar p-mode observations from the long-lived Birmingham Solar Oscillations Network (BiSON) stretch back further than any other single helioseismic data set.
Basu, S.   +5 more
core   +3 more sources

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