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The dynamical regime of Active Regions via the concept of persistent homology. / Kniazeva, I.S.; Makarenko, N.G.; Urtiev, F.A.

In: Physics Procedia, Vol. 74, 2015, p. 363–367.

Research output: Contribution to journal › Article › peer-review

Harvard

Kniazeva, IS, Makarenko, NG & Urtiev, FA 2015, 'The dynamical regime of Active Regions via the concept of persistent homology.', Physics Procedia, vol. 74, pp. 363–367. https://doi.org/10.1016/j.phpro.2015.09.194

APA

Kniazeva, I. S., Makarenko, N. G., & Urtiev, F. A. (2015). The dynamical regime of Active Regions via the concept of persistent homology. Physics Procedia, 74, 363–367. https://doi.org/10.1016/j.phpro.2015.09.194

Vancouver

Kniazeva IS, Makarenko NG, Urtiev FA. The dynamical regime of Active Regions via the concept of persistent homology. Physics Procedia. 2015;74:363–367. https://doi.org/10.1016/j.phpro.2015.09.194

Author

Kniazeva, I.S. ; Makarenko, N.G. ; Urtiev, F.A. / The dynamical regime of Active Regions via the concept of persistent homology. In: Physics Procedia. 2015 ; Vol. 74. pp. 363–367.

BibTeX

@article{12f59338de75408ea11584e2678f13fb,
title = "The dynamical regime of Active Regions via the concept of persistent homology.",
abstract = "Solar activity is a space-time complex of events that are produced by Sun magnetic fields. One of the results of this activity are solar flares. The solar flares occurs mainly in the areas with especially strong magnetic fields called Active Regions (AR). Observation phenomenology indicates that significant change in the magnetic field topology precedes strong flares. Now high frequency temporal sequences of AR magnetograms containing flares are available from the space observatory Solar Dynamics Observatory (SDO). We analyzed them to investigate changes in complexity by using methods of computational topology. As possible descriptors of flares we used topological invariants: the Euler characteristics and Betti numbers. These characteristics of course do not pretend to be the comprehensive description of topological complexity but they are simple in construction and intuitively clear. We found that the large variation of the Betti numbers and Euler characteristics are preceded or accompanied by a large flares",
author = "I.S. Kniazeva and N.G. Makarenko and F.A. Urtiev",
year = "2015",
doi = "10.1016/j.phpro.2015.09.194",
language = "English",
volume = "74",
pages = "363–367",
journal = "Physics Procedia",
issn = "1875-3892",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The dynamical regime of Active Regions via the concept of persistent homology.

AU - Kniazeva, I.S.

AU - Makarenko, N.G.

AU - Urtiev, F.A.

PY - 2015

Y1 - 2015

N2 - Solar activity is a space-time complex of events that are produced by Sun magnetic fields. One of the results of this activity are solar flares. The solar flares occurs mainly in the areas with especially strong magnetic fields called Active Regions (AR). Observation phenomenology indicates that significant change in the magnetic field topology precedes strong flares. Now high frequency temporal sequences of AR magnetograms containing flares are available from the space observatory Solar Dynamics Observatory (SDO). We analyzed them to investigate changes in complexity by using methods of computational topology. As possible descriptors of flares we used topological invariants: the Euler characteristics and Betti numbers. These characteristics of course do not pretend to be the comprehensive description of topological complexity but they are simple in construction and intuitively clear. We found that the large variation of the Betti numbers and Euler characteristics are preceded or accompanied by a large flares

AB - Solar activity is a space-time complex of events that are produced by Sun magnetic fields. One of the results of this activity are solar flares. The solar flares occurs mainly in the areas with especially strong magnetic fields called Active Regions (AR). Observation phenomenology indicates that significant change in the magnetic field topology precedes strong flares. Now high frequency temporal sequences of AR magnetograms containing flares are available from the space observatory Solar Dynamics Observatory (SDO). We analyzed them to investigate changes in complexity by using methods of computational topology. As possible descriptors of flares we used topological invariants: the Euler characteristics and Betti numbers. These characteristics of course do not pretend to be the comprehensive description of topological complexity but they are simple in construction and intuitively clear. We found that the large variation of the Betti numbers and Euler characteristics are preceded or accompanied by a large flares

U2 - 10.1016/j.phpro.2015.09.194

DO - 10.1016/j.phpro.2015.09.194

M3 - Article

VL - 74

SP - 363

EP - 367

JO - Physics Procedia

JF - Physics Procedia

SN - 1875-3892

ER -

ID: 5811055