Flaring Structures Observed in Deconvolved SXT Images

• Autorzy: Sylwester B. , Sylwester J.
• Języki publikacji: EN

Abstrakty

EN

We present and discuss evolution of flaring structures morphology as observed in deconvolved soft X-ray images. The X-ray images have been obtained using the Soft X-ray Telescope (SXT) on Yohkoh. The deconvolution has been made using the iterative maximum likelihood algorithm Andril. In the reconstructed images it is possible to study the position of individual fine structures for the first time with the resolution superior to the SXT pixel size. We show example of the analysis of deconvolved images for one disc flare on July 11, 1992 at 15:25 UT. Corresponding figures and animations for two other flares are available at the address www.cbk.pan.wroc.pl and at the Acta Astronomica Archive (see second cover page for details). These flares occurred on November 19, 1991 and on January 13, 1992 and have been located near/at the limb. We conclude about the differences of physical conditions of the flaring plasma confined in compact bright regions (kernels) located in the footpoint and summit areas.

Słowa kluczowe

EN

Sun: flares; Sun: X-rays; gamma rays

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 1999
• Tom: Vol. 49, No. 1
• Strony: 85--102
• Opis fizyczny: Bibliogr. 27 poz., rys., wykr., zdj.

Twórcy

autor

Sylwester B.

• Space Research Centre, Polish Academy of Sciences, Kopernika 11, 51-622 Wroclaw, Poland

autor

Sylwester J.

• Space Research Centre, Polish Academy of Sciences, Kopernika 11, 51-622 Wroclaw, Poland

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