Naslov
REFLECTION OF COSMIC RAYS AT MHD SHOCKS

Autori
Anamarija Kirin, Bojan Vršnak, Mateja Dumbović, Bernd Heber

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
XVIth Hvar Astrophysical Colloquium/ISEST 2018 Workshop

Mjesto i datum
Hvar, Hrvatska, 04.09.2018. - 08.09.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
coronal mass ejections, galactic cosmic rays, MHD shocks

Sažetak
CME-driven shocks cause a decrease in cosmic ray flux. This effect is called Forbush decrease (Fd). We assume a linearly changing magnetic field component inside the shock and write the corresponding equations of motion. Solving equations numerically and varying different parameters, such as kinetic energy and velocity components of the particle, or the change of magnetic field component and shock width, gives us pitch angles for which particles are reflected. Integrating over velocity space gives the amplitude of Forbush decrease for a given change of magnetic field.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA