Summary: Astronomy & Astrophysics manuscript no. 4506 c ESO 2006
March 30, 2006
Study of a transient siphon flow in a cold loop
J.G. Doyle1, Y. Taroyan1,2, B. Ishak1, M.S. Madjarska3, and S.J. Bradshaw4
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
Solar Physics and Upper-Atmosphere Research Group, Department of Applied Mathematics, University of Sheffield, Sheffield, S3 7RH
Solar Influences Data analysis Center, Royal Observatory of Belgium, 3 Circular Avenue, 1180 Brussels, Belgium
Space & Atmospheric Physics, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BZ, UK
now at: Max-Planck-Institut f´ur Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau, Germany
Preprint online version: March 30, 2006
Context. The nature of loops is still a matter of debate with several explanations having been put forward. Simultaneous spectral and imaging
data have the capacity to provide a new insight into mass motions, dynamics and energetics of loops.
Aims. We report on spectral data taken with the Solar Ultraviolet Measurements of Emitted Radiation spectrograph (SUMER) and imaging
data from the Transition Region and Coronal Explorer (TRACE) of a transient event which occurred in a cold loop, lasting a few minutes.