RT info:eu-repo/semantics/article
T1 Magnetic clouds seen at different locations in the heliosphere
A1 Rodriguez, L.
A1 Zhukov, A.N.
A1 Dasso, S.
A1 Mandrini, C.H.
A1 Cremades, H.
A1 Cid Tortuero, Consuelo
A1 Cerrato Montalbán, Yolanda
A1 Saiz Villanueva, María Elena
A1 Aran, A.
A1 Menvielle, M.
A1 Poedts, S.
A1 Schmieder, B.
K1 Solar physics
K1 Astrophysics
K1 Astronomy
K1 Magnetic fiels
K1 Ciencia
K1 Fisica
K1 Physics
AB We analyze two magnetic clouds (MCs) observed in different points of the heliosphere. The main aim of the present study is to provide a link between the different aspects of this phenomenon, starting with information on the origins of the MCs at the Sun and following by the analysis of in-situ observations at 1AU and at Ulysses. The candidate source regions were identified in SOHO/EIT and SOHO/MDI observations. They were correlated with H-alfa images that were obtained from ground-based observatories. Hints on the internal magnetic field configuration of the associated coronal mass ejections are obtained from LASCO C2 images. In interplanetary space, magnetic and plasma moments of the distribution function of plasma species (ACE/Ulysses) were analyzed together with information on the plasma composition, and the results were compared between both spacecraft in order to understand how these structures interact and evolve in their cruise from the Sun to 5 AU. Additionally, estimates of global magnitudes of magnetic fluxes and helicity were obtained from magnetic field models applied to the data in interplanetary space. We have found that these magnetic characteristics were well kept from their solar source, up to 5 AU where Ulysses provided valuable information which, together with that obtained from ACE, can help to reinforce the correct matching of solar events and their interplanetary counterparts.
SN 0992-7689
YR 2008
FD 2008-02-26
LK http://hdl.handle.net/10017/29203
UL http://hdl.handle.net/10017/29203
LA eng
NO Ministerio de Educación y Cultura
DS MINDS@UW
RD 20-abr-2024