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Propagating disturbances along a coronal loop from simultaneous EUV imaging and spectroscopic observations

Krishna Prasad, S.; Banerjee, Dipankar; Datta, Ajanta

Propagating disturbances (PDs) were studied along an active region loop using simultaneous imaging and spectroscopy. An image sequence recorded in the Fe IX/Fe X 171Å channel, from TRACE and spectral data in the Si XII 520.6 Å line obtained from CDS/SOHO, are analyzed. A space-time map constructed from the TRACE image sequence shows the presence o…