Interaction Of Magnetic Clouds In The Inner Heliosphere

2003 ◽  
Author(s):  
E. Romashets
Keyword(s):  
Magnetic Clouds ◽  
Inner Heliosphere

scholarly journals Solar cycle evolution of the structure of magnetic clouds in the inner heliosphere

1998 ◽  
Vol 25 (15) ◽  
pp. 2959-2962 ◽  
Author(s):  
T. Mulligan ◽  
C. T. Russell ◽  
J. G. Luhmann
Keyword(s):  
Solar Cycle ◽  
Magnetic Clouds ◽  
Inner Heliosphere

scholarly journals Global and local expansion of magnetic clouds in the inner heliosphere

2009 ◽  
Vol 509 ◽  
pp. A39 ◽  
Author(s):  
A. M. Gulisano ◽  
P. Démoulin ◽  
S. Dasso ◽  
M. E. Ruiz ◽  
E. Marsch
Keyword(s):  
Magnetic Clouds ◽  
Local Expansion ◽  
Global And Local ◽  
Inner Heliosphere

scholarly journals Evolution of magnetic clouds in the inner heliosphere

2010 ◽  
Author(s):  
Adriana Maria Gulisano ◽  
Pascal Démoulin ◽  
Sergio Dasso ◽  
Maria Emilia Ruiz ◽  
Eckart Marsch ◽  
...  
Keyword(s):  
Magnetic Clouds ◽  
Inner Heliosphere

scholarly journals How do fits of simulated magnetic clouds correspond to their real shapes in 3-D?

2010 ◽  
Vol 28 (8) ◽  
pp. 1581-1588 ◽  
Author(s):  
M. Vandas ◽  
E. Romashets ◽  
A. Geranios
Keyword(s):  
Geomagnetic Storms ◽  
Source Region ◽  
Three Dimensional ◽  
Magnetic Clouds ◽  
Axis Orientation ◽  
The Past ◽  
Cloud Parameters ◽  
Weather Forecasters ◽  
Three Dimensional Simulations ◽  
Inner Heliosphere

Abstract. Magnetic clouds are important objects for space weather forecasters due to their impact on the Earth's magnetosphere and their consequences during geomagnetic storms. Being considered as cylindrical or toroidal flux ropes, their size, velocity, magnetic field strength, and axis orientation determine its impact on Earth. Above mentioned parameters are usually extracted from model fits using measurements from one-spacecraft crossings of these structures. In order to relate solar events with these spacecraft observations, the parameters are then compared to situation at the Sun around a most probable source region with a goal to correlate them with near-Sun observed quantities for prediction purposes. In the past we performed three-dimensional simulations of magnetic cloud propagation in the inner heliosphere. Simulated spacecraft measurements are fitted by models of magnetic clouds and resulting parameters are compared with real shapes of magnetic clouds which can be directly obtained from our simulations. The comparison shows that cloud parameters are determined quite reliably for spacecraft crossings near the cloud axis.

scholarly journals BepiColombo Science Investigations During Cruise and Flybys at the Earth, Venus and Mercury

2021 ◽  
Vol 217 (1) ◽  
Author(s):  
Valeria Mangano ◽  
Melinda Dósa ◽  
Markus Fränz ◽  
Anna Milillo ◽  
Joana S. Oliveira ◽  
...  
Keyword(s):  
French Guiana ◽  
European Space Agency ◽  
Scientific Research ◽  
The Earth ◽  
Space Agency ◽  
Spacecraft Mission ◽  
Joint Mission ◽  
Science Investigations ◽  
Orbit Insertion ◽  
Inner Heliosphere

AbstractThe dual spacecraft mission BepiColombo is the first joint mission between the European Space Agency (ESA) and the Japanese Aerospace Exploration Agency (JAXA) to explore the planet Mercury. BepiColombo was launched from Kourou (French Guiana) on October 20th, 2018, in its packed configuration including two spacecraft, a transfer module, and a sunshield. BepiColombo cruise trajectory is a long journey into the inner heliosphere, and it includes one flyby of the Earth (in April 2020), two of Venus (in October 2020 and August 2021), and six of Mercury (starting from 2021), before orbit insertion in December 2025. A big part of the mission instruments will be fully operational during the mission cruise phase, allowing unprecedented investigation of the different environments that will encounter during the 7-years long cruise. The present paper reviews all the planetary flybys and some interesting cruise configurations. Additional scientific research that will emerge in the coming years is also discussed, including the instruments that can contribute.

scholarly journals Flux rope axis geometry of magnetic clouds deduced from in situ data

2013 ◽  
Vol 8 (S300) ◽  
pp. 265-268
Author(s):  
Miho Janvier ◽  
Pascal Démoulin ◽  
Sergio Dasso
Keyword(s):  
Interplanetary Medium ◽  
Magnetic Cloud ◽  
Flux Rope ◽  
Magnetic Clouds ◽  
Direct Integration ◽  
Axis Orientation ◽  
In Situ Data ◽  
Geometrical Features ◽  
Wide Range

AbstractMagnetic clouds (MCs) consist of flux ropes that are ejected from the low solar corona during eruptive flares. Following their ejection, they propagate in the interplanetary medium where they can be detected by in situ instruments and heliospheric imagers onboard spacecraft. Although in situ measurements give a wide range of data, these only depict the nature of the MC along the unidirectional trajectory crossing of a spacecraft. As such, direct 3D measurements of MC characteristics are impossible. From a statistical analysis of a wide range of MCs detected at 1 AU by the Wind spacecraft, we propose different methods to deduce the most probable magnetic cloud axis shape. These methods include the comparison of synthetic distributions with observed distributions of the axis orientation, as well as the direct integration of observed probability distribution to deduce the global MC axis shape. The overall shape given by those two methods is then compared with 2D heliospheric images of a propagating MC and we find similar geometrical features.

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