Open AccessSpacecraft observations featured at Solar Symposium
Author(s) -
Shea M. A.,
Smart D. F.
Publication year - 1998
Publication title -
eos, transactions american geophysical union
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 86
eISSN - 2324-9250
pISSN - 0096-3941
DOI - 10.1029/98eo00004
Subject(s) - spacecraft , coronal mass ejection , physics , solar radius , astronomy , solar wind , corona (planetary geology) , coronal hole , interplanetary magnetic field , interplanetary spaceflight , aerospace engineering , astrobiology , astrophysics , plasma , engineering , quantum mechanics , venus
Participants at a symposium on solar phenomena that affect interplanetary space and the Earth's outer environment eagerly received new results from the Solar and Heliospheric Observatory (SOHO) spacecraft, launched in December 1995. Dedicated to solar observations, this spacecraft is providing almost revolutionary new information about the Sun. Implications of the apparent ejection of solar mass material over a 180° angle are difficult to omprehend. Initial results of the three coronagraphs on the SOHO spacecraft (LASCO experiment) represent a significant advance in observing and modeling the quiet solar corona. Many participants admired the composite model to 30 solar radii as a spectacular technical achievement. Oxygen velocity profiles were presented as a function of radial distance within polar plumes, which appear to be associated with unipolar magnetic field regions and may have significant implications related to the source of the coronal hole high‐speed streams.