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Gopalswamy et al. 2001
Gopalswamy, N., Lara, A., Kaiser, M.L. and Bougeret, J.-L. (2001). Near-Sun and near-Earth manifestations of solar eruptions. Journal of Geophysical Research 106: doi: 10.1029/2000JA004025. issn: 0148-0227.

We compare the near-Sun and near-Earth manifestations of solar eruptions that occurred during November 1994 to June 1998. We compared white-light coronal mass ejections, metric type II radio bursts, and extreme ultraviolet wave transients (near the Sun) with interplanetary (IP) signatures such as decameter-hectometric type II bursts, kilometric type II bursts, IP ejecta, and IP shocks. We did a two-way correlation study to (1) look for counterparts of metric type II bursts that occurred close to the central meridian and (2) look for solar counterparts of IP shocks and IP ejecta. We used data from Wind and Solar and Heliospheric Observatory missions along with metric radio burst data from ground-based solar observatories. Analysis shows that (1) most (93%) of the metric type II bursts did not have IP signatures, (2) most (80%) of the IP events (IP ejecta and shocks) did not have metric counterparts, and (3) a significant fraction (26%) of IP shocks were detected in situ without drivers. In all these cases the drivers (the coronal mass ejections) were ejected transverse to the Sun-Earth line, suggesting that the shocks have a much larger extent than the drivers. Shocks originating from both limbs of the Sun arrived at Earth, contradicting earlier claims that shocks from the west limb do not reach Earth. These shocks also had good type II radio burst association. We provide an explanation for the observed relation between metric, decameter-hectometric, and kilometric type II bursts based on the fast mode magnetosonic speed profile in the solar atmosphere. ¿ 2001 American Geophysical Union

BACKGROUND DATA FILES

Abstract

Keywords
Interplanetary Physics, Ejecta, driver gases, and magnetic clouds, Interplanetary Physics, Interplanetary shocks, Solar Physics, Astrophysics, and Astronomy, Coronal mass ejections, Solar Physics, Astrophysics, and Astronomy, Radio emissions
Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
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