Solar flares with long soft X-ray decays

Energy balance in giant loops

Konstantin V. Getman, M. A. Livshits

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Solar flares with long X-ray decays (Long-Decay Flars, LDF) are studied. X-ray and radio observations can be used to trace the active phase of an LDF and the subsequent development of a system of giant coronal loops. The energy balance in a giant loop is modeled for the events of January 24, 1992 (an elementary LDF, considered earlier), November 2, 1991, and March 15, 1993; the modeling shows that energy flow into the loop over the entire life time of the LDF is necessary to account for the duration of the events. The total energy of the LDF was confined within rather narrow limits and was comparable to the energy of major impulsive flares. The results are consistent with the concept (developed in connection with Yohkoh observations) that an LDF in a posteruptive process results in magnetic reconnection in a vertical current sheet, with the subsequent formation of new loops and their specific evolution.

Original languageEnglish (US)
Pages (from-to)255-261
Number of pages7
JournalAstronomy Reports
Volume44
Issue number4
DOIs
StatePublished - Jan 1 2000

Fingerprint

solar flares
energy balance
energy flow
decay
energy
x rays
radio
modeling
coronal loops
radio observation
current sheets
flares
life (durability)

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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Solar flares with long soft X-ray decays : Energy balance in giant loops. / Getman, Konstantin V.; Livshits, M. A.

In: Astronomy Reports, Vol. 44, No. 4, 01.01.2000, p. 255-261.

Research output: Contribution to journalArticle

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