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Multi-spectral observations of flares

Journal
Date Issued
2016
Author(s)
DOI
Description
The research leading to these results has received funding from the European Commission’s Seventh Framework Programme under the grant agreements F-CHROMA (project no 606862) and SOLARNET (project no 312495). This work was also supported by the Istituto Nazionale di Astrofisica (PRIN-INAF-2014), by the University of Catania (PRIN MIUR 2012) and by the SpaceWeather Italian COmmunity (SWICO) Research Program.
Abstract
Observations show that during solar flares radiation can be emitted across the entire electromagnetic spectrum, spanning from gamma rays to radio waves. These emissions, related to the conversion of magnetic energy into other forms of energy (kinetic, thermal, waves) through magnetic reconnection, are due to different physical processes that can occur in different layers of the Sun. This means that flare observations need to be carried out using instruments operating in different wave-bands in order to achieve a complete scenario of the processes going on. Taking into account that most of the radiative energy is emitted at optical and UV wavelengths, observations carried out from space, need to be complemented by observations carried out from ground-based telescopes. Nowadays, the possibility to carry on high temporal, spatial and spectral resolution from ground-based telescopes in coordinated campaigns with space-borne instruments (like, i.e., IRIS and HINODE) gives the opportunity to investigate the details of the flare emission at different wavelengths and can provide useful hints to understand these phenomena and compare observations with models. However, it is undoubted that sometimes the pointing to the flaring region is not an easy task, due to the necessity to provide the target coordinates to satellites with some hours in advance. Some problems arising from this issue will be discussed. Moreover, new projects related to flare catalogues and archives will be presented.
Volume
337
Issue
10
Start page
1070
Uri
Url
Issn Identifier
0004-6337
Ads BibCode
2016AN....337.1070Z
Rights
open.access
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