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Polarization of Hard X-Rays in October-November, 2003 Solar Flares Observed Onboard CORONAS-F Satellite

Published online by Cambridge University Press:  14 March 2005

A. V. Bogomolov ,
Yu. I. Denisov ,
Yu. I. Logachev ,
O. V. Morozov ,
I. N. Myagkova ,
S. I. Svertilov ,
I. A. Zhitnik ,
A. P. Ignat'ev ,
S. N. Oparin  and
A. A. Pertsov
A. V. Bogomolov
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru. Present address: Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Russia.
Yu. I. Denisov
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru.
Yu. I. Logachev
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru.
O. V. Morozov
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru.
I. N. Myagkova
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru.
S. I. Svertilov
Affiliation:
Skobeltsyn Institute of Nuclear Physics, Moscow State University, Vorob'evy Gory, Moscow, 119992, Moscow, Russia e-mail: aabboogg@nm.ru.
I. A. Zhitnik
Affiliation:
Lebedev Physical Institute, Russian Academy of Sccience, Leninskii pr., 53, Moscow, 119991, Russia
A. P. Ignat'ev
Affiliation:
Lebedev Physical Institute, Russian Academy of Sccience, Leninskii pr., 53, Moscow, 119991, Russia
S. N. Oparin
Affiliation:
Lebedev Physical Institute, Russian Academy of Sccience, Leninskii pr., 53, Moscow, 119991, Russia
A. A. Pertsov
Affiliation:
Lebedev Physical Institute, Russian Academy of Sccience, Leninskii pr., 53, Moscow, 119991, Russia
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Abstract

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Hard X-ray radiation from several powerful solar flares was detected in October-November, 2003 by the SPR-N hard X-ray polarimeter onboard CORONAS-F satellite. In the October, 29 solar flare (20:40 - 21:00 UT) the X-ray radiation was strongly polarized (more than 70% of photons with energies 40-100 keV). In the flares 28.10.03 and 04.11.03 the emission was not polarized. The upper limits for the part of polarized photons at the level of tens percents were obtained in these flares.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS223 , June 2004 , pp. 447 - 448
Copyright
© 2004 International Astronomical Union