Interaction between magnetic clouds and the heliospheric current sheet at 1 AU as it is observed by one single observation point |
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| Authors: | JJ Blanco MA Hidalgo J Rodriguez-Pacheco J Medina |
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| Institution: | 1. WINNER Centre for Newborn Research, NHMRC Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia;2. Nottingham Clinical Trials Unit, Nottingham Health Science Partners, C Floor, South Block, Queen''s Medical Centre, Nottingham, UK;3. Department of Health Sciences, University of Leicester, Leicester, UK;4. Department of Neonatal Medicine, UCL EGA Institute for Women''s Health, London, UK;5. Perinatal Research, The Kolling Institute of Medical Research, The University of Sydney, Royal North Shore Hospital, Sydney, Australia;6. School of Women''s and Infants'' Health, The University of Western Australia, Perth, Australia;7. Departments of Epidemiology & Biostatistics and Pediatrics & Human Development, College of Human Medicine, Michigan State University, East Lansing, MI;8. Department of Pediatrics, University of Vermont College of Medicine, Burlington, VT;9. Royal Maternity Hospital, Grosvenor Road, Belfast, Northern Ireland, UK;1. Nanjing University of Aeronautics and Astronautics, College of Energy and Power Engineering, Nanjing 210016, China;2. State Grid Jiangsu Electric Power Company Research Institute, Nanjing 211103, China;3. Nanjing University of Aeronautics and Astronautics, College of Aerospace Engineering, Nanjing 210016, China;1. Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia;2. Division of Reproductive Endocrinology and Infertility, Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia |
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| Abstract: | The effect of Magnetic Clouds (MCs) on the Heliospheric Current Sheet (HCS) local structure is yet an open question. Although it is widely accepted that a magnetic cloud has an important effect on the HCS shape, their structural relation, either the MC is part of the HCS or not, is not completely solved. Moreover, the problem grows up when trying to investigate three dimensional structures using one single observation point. We propose an approach to the MC–HCS study using magnetic models for the MC and local HCS structures, which are able of determining their relative orientation from one single spacecraft data. Three events have been selected in which an MC passage was observed close to HCS crossings. The results confirm the strong effect of MC passage on the HCS local orientation and they seem to be consistent with MCs propagating out of the HCS at 1 AU. |
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