20 january 2005 flare
DESCRIPTION
20 JANUARY 2005 FLARE. Kuznetzov Sergey (PI), [email protected], Kurt Victoria, [email protected], Yushkov Boris , clef@srd,sinp.msu.ru, Svertilov Sergey Skobeltzyn Institute of Nuclear Physics, Moscow State University - PowerPoint PPT PresentationTRANSCRIPT
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20 JANUARY 2005 FLARECORONAS OBSERVATIONS Kuznetzov Sergey (PI), [email protected], Kurt Victoria, [email protected], Yushkov Boris, clef@srd,sinp.msu.ru, Svertilov Sergey
Skobeltzyn Institute of Nuclear Physics, Moscow State University
Kudela Karel (co-PI) Institute of Experimental Physics, Slovak Academy of Sciences, Kosice, [email protected] RHESSI workshop
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20 January 2005 flare Proton onset
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Evolution of different parameters of the flare emissionThe phases correspond to that of 11 JUNE 1991 flare.
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Time profiles of the low and high energy gamma-ray emissionHigh energy emission is delayed compared to the low one.
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Time profiles in all the energy windows
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Zoomed time profiles
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Energy spectra in the phases IA and IB Distinct 0 component is seen in the phase IB. The absolute flux is compared with that of SPRN- X-ray detector onboard CORONAS
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Comparison of RHESSI and SPRN time profiles in similar energy windows.
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What we see at the end of the phase IBDecay of bremmstrahlung emission becomes more steep than that of 0 emission. It seems that variation of the intensities becomes asynchronious.
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Plasma temperature begins to decrease at the end of the phase IB
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If the L>L1 than escaping time shifted to more earlier time.????The shortest path of protons L1 =1.055R Time delay of Ep=5 GeV (Vp=0.987c) relative to gamma-ray is 35s Escaping time must be near 06:48 UT Remember that 06:48 UT is the crucial point in the flare development
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R=0.984a.e, -ray emission time of flight=490.5stime of max NM T NM = 06:52:30 UT corresponds to Ep=500 MeV,than time delay T NM relative -ray emission maximum T=06:46:30 UT is equal to 360 s .In this case proton time of flight is Tflight=(490+360) s. Vp (500 MeV)=0.76c. In this case proton path L= Tflight *Vp=1.32R and time difference between 5 GeV and 500 MeV protons onset time has to be 195 s.
This value correspond l to NM rise time duration..