Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....6.3557i&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
A large percentage of coronal mass ejections (CMEs) at 1 AU exhibit large and coherent internal field rotations characteristic to magnetic flux rop es (magnetic clouds). But the global structure of flux rop es, i.e., the length and the curvature of flux rop es along their axis, has not been clarified yet. In order to obtain a clue to this problem, we here examine a case where data from two spacecraft are available. In our previous paper ([4]), the magnetic field from the NOZOMI spacecraft was analyzed with a cylindrical flux rop e model ([3]). In this paper, we applied a torus-type force-free field model ([7]) to the magnetic field data obtained by both NOZOMI and ACE on July 14, 2000. The results from our model fits show that a single large-scale magnetic flux rop e with local curvature extended globally with the angular extent of ˜ 120° (seen from the sun) in interplanetary space. This picture is consistent with that in our previous work ([4]).
Doke Tadayoshi
Hasebe Nobuyuki
Ihara A.
Kikuchi Jun
Kobayashi Masanori
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