Localization of the solar flare SF900610 in X-rays with the WATCH instrument of the GRANAT observatory

O.V. Terekhov, A.G. Kuzmin, A.V. Shevchenko, S.Y. Sazonov, R.A. Sunyaev, Niels Lund

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

During the solar flare of June 10, 1990, the WATCH instrument of the GRANAT space observatory obtained 110 localizations of the X-ray source in the X-ray range 8-20 keV. Its coordinates were measured with an accuracy of similar to2 arcmin at a 3sigma confidence level. The coordinates of the X-ray source do not coincide with the coordinates of the Ha-line flare. The X-ray source moved over the solar disk during the flare. This probably implies that, as the X-ray emission was generated, different parts of one loop or a system of magnetic loops dominated at different flare times.
Original languageEnglish
JournalAstronomy Letters-a Journal of Astronomy and Space Astrophysics
Volume28
Issue number12
Pages (from-to)853-856
ISSN1063-7737
Publication statusPublished - 2002

Keywords

  • the Sun
  • X-ray and gamma-ray sources

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