Geomagnetic Effects of Solar Flares

Terrestrial Response To Eruptive Solar Flares: Geomagnetic Storms

During the interval of August 1978December 1979, 56 unambiguous fast forward shocks were identified using magnetic field and plasma data collected by the ISEE-3 spacecraft. Because this intervaI is at a solar maximum we assume the streams causing these shocks are associated with coronal mass ejections and eruptive solar flares. For these shocks we shall describe the shockstorm relationship for ...

The Automatic Predictability of Super Geomagnetic Storm from Halo CMEs Associated with Large Solar Flares

We investigate the relationship between magnetic structures of CME source regions and geomagnetic storms, in particular the super storms when the Dst index decreases below -200nT. By examining all full halo CMEs that erupted between 1996 and 2004, we selected 73 events associated with M and X-class solar flares, which have a clearly identifiable source region. By analyzing daily full disk MDI m...

Effects of solar flares on the ionosphere of Mars.

All planetary atmospheres respond to the enhanced x-rays and ultraviolet (UV) light emitted from the Sun during a flare. Yet only on Earth are observations so continuous that the consequences of these essentially unpredictable events can be measured reliably. Here, we report observations of solar flares, causing up to 200% enhancements to the ionosphere of Mars, as recorded by the Mars Global S...

Global Properties of Solar Flares

Lithium-6 from Solar Flares

By introducing a hitherto ignored Li producing process, due to accelerated He reactions with He, we show that accelerated particle interactions in solar flares produce much more Li than Li. By normalizing our calculations to gamma-ray data we demonstrate that the Li produced in solar flares, combined with photospheric Li, can account for the recently determined solar wind lithium isotopic ratio...