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Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms. / Knyazeva, I. S.; Makarenko, N. G.; Livshits, M. A.

In: Astronomy Reports, Vol. 55, No. 5, 2011, p. 463-471.

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

Harvard

Knyazeva, IS, Makarenko, NG & Livshits, MA 2011, 'Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms', Astronomy Reports, vol. 55, no. 5, pp. 463-471. https://doi.org/10.1134/S1063772911050040

APA

Knyazeva, I. S., Makarenko, N. G., & Livshits, M. A. (2011). Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms. Astronomy Reports, 55(5), 463-471. https://doi.org/10.1134/S1063772911050040

Vancouver

Knyazeva IS, Makarenko NG, Livshits MA. Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms. Astronomy Reports. 2011;55(5):463-471. https://doi.org/10.1134/S1063772911050040

Author

Knyazeva, I. S. ; Makarenko, N. G. ; Livshits, M. A. / Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms. In: Astronomy Reports. 2011 ; Vol. 55, No. 5. pp. 463-471.

BibTeX

@article{0aa9b707957347088cf9ea252cb4cbc3,
title = "Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms",
abstract = "Abstract—A topological method for detecting the new emergence of magnetic flux using SOHO/MDI magnetograms of the full solar disk is proposed. This method uses the number of pixels in the image that can be distinguished from a specified value to within a predetermined threshold (the number of disconnected components). We study more than ten very powerful active regions (ARs) with very high flare activity and show that the number of disconnected components increases directly before the development of a series of M and X flares, or accompanies this process. This behaviour is evident not only when there is an explicit emergence of a new flux and a series of fast flares, such as in AR 9236 (November 2000), but also in groups with many non-stationary processes developing along a neutral line of the large-scale magnetic field. We also discuss the possibility of using the obtained results for flare prediction.",
author = "Knyazeva, {I. S.} and Makarenko, {N. G.} and Livshits, {M. A.}",
year = "2011",
doi = "10.1134/S1063772911050040",
language = "English",
volume = "55",
pages = "463--471",
journal = "Astronomy Reports",
issn = "1063-7729",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "5",

}

RIS

TY - JOUR

T1 - Detection of New Emerging Magnetic Flux from the Topology of SOHO/MDI Magnetograms

AU - Knyazeva, I. S.

AU - Makarenko, N. G.

AU - Livshits, M. A.

PY - 2011

Y1 - 2011

N2 - Abstract—A topological method for detecting the new emergence of magnetic flux using SOHO/MDI magnetograms of the full solar disk is proposed. This method uses the number of pixels in the image that can be distinguished from a specified value to within a predetermined threshold (the number of disconnected components). We study more than ten very powerful active regions (ARs) with very high flare activity and show that the number of disconnected components increases directly before the development of a series of M and X flares, or accompanies this process. This behaviour is evident not only when there is an explicit emergence of a new flux and a series of fast flares, such as in AR 9236 (November 2000), but also in groups with many non-stationary processes developing along a neutral line of the large-scale magnetic field. We also discuss the possibility of using the obtained results for flare prediction.

AB - Abstract—A topological method for detecting the new emergence of magnetic flux using SOHO/MDI magnetograms of the full solar disk is proposed. This method uses the number of pixels in the image that can be distinguished from a specified value to within a predetermined threshold (the number of disconnected components). We study more than ten very powerful active regions (ARs) with very high flare activity and show that the number of disconnected components increases directly before the development of a series of M and X flares, or accompanies this process. This behaviour is evident not only when there is an explicit emergence of a new flux and a series of fast flares, such as in AR 9236 (November 2000), but also in groups with many non-stationary processes developing along a neutral line of the large-scale magnetic field. We also discuss the possibility of using the obtained results for flare prediction.

U2 - 10.1134/S1063772911050040

DO - 10.1134/S1063772911050040

M3 - Article

VL - 55

SP - 463

EP - 471

JO - Astronomy Reports

JF - Astronomy Reports

SN - 1063-7729

IS - 5

ER -

ID: 5565009