Flares: highly energetic explosions on the Sun

Authors
Dr.
Alberto Sainz-Dalda
Date and time
24 Oct 2013 - 10:30 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
1
Description

Flares are among the most energetic magnetic solar phenomena. They are often accompanied by ejections of charged particles, which have a direct influence on the Earth in terms of Aurora or radio and satellite outages. The sudden nature of flares - some of them only last minutes - makes them an elusive feature when observed from ground-based telescopes. These measurements are especially challenging when we focus on magnetic fields and velocities in the different solar layers where flares develop and occur. I will present flare observations taken with different instruments, each targeting different observables, and I will show what we can learn from ground-based polarization measurements.