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Title:
EUV Wave Reflection from a Coronal Hole
Authors:
Gopalswamy, N.; Yashiro, S.; Temmer, M.; Davila, J.; Thompson, W. T.; Jones, S.; McAteer, R. T. J.; Wuelser, J.-P.; Freeland, S.; Howard, R. A.
Affiliation:
AA(Code 695, NASA Goddard Space Flight Center, USA ), AB(Code 695, NASA Goddard Space Flight Center, USA ), AC(IGAM/Institute of Physics, University of Graz, Austria ), AD(Code 671, NASA Goddard Space Flight Center, USA ), AE(Code 671, NASA Goddard Space Flight Center, USA ), AF(Code 671, NASA Goddard Space Flight Center, USA ), AG(Astrophysics Research Group, Trinity College Dublin, Dublin 2, Ireland ), AH(Lockheed Martin Solar & Astrophysics Laboratory, USA ), AI(Lockheed Martin Solar & Astrophysics Laboratory, USA ), AJ(Naval Research Laboratory, Washington DC, USA)
Publication:
The Astrophysical Journal Letters, Volume 691, Issue 2, pp. L123-L127 (2009). (ApJL Homepage)
Publication Date:
02/2009
Origin:
IOP
ApJ Keywords:
Sun: corona, Sun: coronal mass ejections: CMEs, Sun: flares, Sun: magnetic fields, Sun: UV radiation
DOI:
10.1088/0004-637X/691/2/L123
Bibliographic Code:
2009ApJ...691L.123G

Abstract

We report on the detection of EUV wave reflection from a coronal hole, as observed by the Solar Terrestrial Relations Observatory mission. The EUV wave was associated with a coronal mass ejection (CME) erupting near the disk center. It was possible to measure the kinematics of the reflected waves for the first time. The reflected waves were generally slower than the direct wave. One of the important implications of the wave reflection is that the EUV transients are truly a wave phenomenon. The EUV wave reflection has implications for CME propagation, especially during the declining phase of the solar cycle when there are many low-latitude coronal holes.
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