Abstract On 6 September 2017, the Sun emitted two significant solar flares (SFs). The first
SF, classified X2. 2, peaked at 09: 10 UT. The second one, X9. 3, which is the most intensive …

One of the most intense geomagnetic storms of recent times occurred on 10–11 May 2024.
With a peak negative excursion of Sym‐H below− 500 nT, this storm is the second largest of …

We present the first stereoscopic and Doppler observations of simultaneous transverse
oscillations of a prominence and a filament and longitudinal oscillation of another filament …

There are growing concerns about the effect of solar flares on the ionosphere, mainly due to
possible deterioration or damage to our communication and navigation satellite systems. On …

Solar flares are sudden eruption of intense high-energy radiation from the Sun causing radio
perturbations due to disturbances in ionosphere and magnetosphere of the Earth. The …

We have investigated the solar flare effects on ionospheric absorption with the systematic
analysis of ionograms measured at midlatitude and low-latitude ionosonde stations under …

This study investigates the ionospheric Total Electron Content (TEC) responses over 75° E
longitude to the solar flares and geomagnetic storms of September 6–9, 2017. The results of …

The D-region ionospheric perturbations caused by solar flares which occurred during
January 2010–February 2011, a low solar activity period of current solar cycle 24, have …

The sudden increase of X-radiation and EUV emission following solar flares causes
additional ionization and increased absorption of electromagnetic (EM) waves in the Earth's …

Strong solar flare events can occur even during the decay phase of the solar cycle. During
these events concurrent increases in the X-ray and Enhanced UV (EUV) fluxes and solar …