Automatic detection of white-light flare kernels in SDO/HMI intensitygrams

0479456 - ASÚ 2018 RIV NL eng J - Článek v odborném periodiku
Mravcová, L. - Švanda, Michal
Automatic detection of white-light flare kernels in SDO/HMI intensitygrams.
New Astronomy. Roč. 57, November (2017), s. 14-21. ISSN 1384-1076. E-ISSN 1384-1092
Institucionální podpora: RVO:67985815
Klíčová slova: Sun * activity * flares
Obor OECD: Astronomy (including astrophysics,space science)
Impakt faktor: 0.920, rok: 2017

Solar flares with a broadband emission in the white-light range of the electromagnetic spectrum belong to most enigmatic phenomena on the Sun. The origin of the white-light emission is not entirely understood. We aim to systematically study the visible-light emission connected to solar flares in SDO/HMI observations. We developed a code for automatic detection of kernels of flares with HMI intensity brightenings and study properties of detected candidates. The code was tuned and tested and with a little effort, it could be applied to any suitable data set. By studying a few flare examples, we found indication that HMI intensity brightening might be an artefact of the simplified procedure used to compute HMI observables.
Trvalý link: http://hdl.handle.net/11104/0275445