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Automatic detection of white-light flare kernels in SDO/HMI intensitygrams
- 1.0479456 - ASÚ 2018 RIV NL eng J - Journal Article
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
Institutional support: RVO:67985815
Keywords : Sun * activity * flares
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 0.920, year: 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.
Permanent Link: http://hdl.handle.net/11104/0275445
Number of the records: 1