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October 2020

Magnetic Reconnection during the Post-impulsive Phase of a Long-duration Solar Flare
by S. Yu et al.

2020-10-27

Magnetic reconnection, a fundamental process in astrophysical environment plasma is believed to facilitate the release of energy stored in the magnetic field. However, where the magnetic reconnections occur, how and where the released magnetic energy is transported, and how it is converted to other forms remain unclear. Here, we report well-connected observational signatures of magnetic reconnection, plasma heating, and electron acceleration observed during the post-impulsive gradual phase of the X8.2-class […]

Low frequency radio observations of the ‘quiet’ corona during the descending phase of sunspot cycle 24
by R. Ramesh et al.*

2020-10-13

The shape, size and electron density (Ne) of the corona varies with the sunspot cycle, which is now very well established by white-light observations. In our study, we investigated the ‘quiet’ solar corona (i.e., the corona distinct from emission due to transient and long-lasting discrete sources) at radio frequencies during the descending phase of sunspot cycle 24. We used the radio images obtained with the Gauribidanur RAdioheliograPH (GRAPH; Ramesh1998) at […]

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Atacama Large Millimeter Array (ALMA) (11) chromosphere (13) coronal magnetic field (14) Coronal Mass Ejection (CME) (43) density fluctuations (14) electron cyclotron maser (ECM) (4) energetic electrons (14) fine spectral structures (4) free-free emission (8) Giant Metrewave Radio Telescope (GMRT) (3) gyrosynchrotron emission (13) hard X-ray (5) ionosphere (4) Langmuir waves (8) Low Frequency Array (LOFAR) (21) microwave emission (15) Murchison Widefield Array (MWA) (10) Nancay Radio Heliograph (NRH) (5) Nobeyama Radioheliograph (NoRH) (8) Parker Solar Probe (PSP) (11) particle acceleration (8) plasma radio emission (6) Quasi-periodic pulsations (QPP) (4) quiet Sun (9) radio spikes (11) radio wave scattering (13) shock wave (8) simulations (4) Solar Dynamics Observatory (SDO) (4) solar energetic particles (SEP) (24) solar flare (29) Solar Orbiter (SolO) (7) solar radio emission (20) space weather (4) STEREO (10) submillimeter emission (4) turbulence (18) Type III solar radio bursts (66) Type II solar radio bursts (38) Type I solar radio bursts (7) Type IV solar radio bursts (11) Ukrainian T-shaped radio telescope (UTR-2) (4) Ultraviolet (UV)/extreme ultraviolet (EUV) emissions (6) Wind (spacecraft) (7) zebra-structure (7)
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  • Connecting energetic electrons at the Sun and in the heliosphere through X-ray and radio diagnostics by D. Paipa-Leon et al.

    2025-06-10

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