Open AccessHigh‐frequency oscillations in a solar active region coronal loop
Author(s) -
Williams D.R.,
Phillips K.J.H.,
Rudawy P.,
Mathioudakis M.,
Gallagher P.T.,
O'Shea E.,
Keenan F.P.,
Read P.,
Rompolt B.
Publication year - 2001
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2001.04491.x
Subject(s) - physics , solar eclipse , coronal loop , corona (planetary geology) , astronomy , eclipse , oscillation (cell signaling) , astrophysics , nanoflares , coronal plane , coronal mass ejection , solar wind , plasma , medicine , radiology , quantum mechanics , astrobiology , venus , biology , genetics
The Solar Eclipse Corona Imaging System (SECIS) was used to record high‐cadence observations of the solar corona during the total solar eclipse of 1999 August 11. During the 2 min 23.5 s of totality, 6364 images were recorded simultaneously in each of the two channels: a white light channel, and the Fe xiv (5303 Å) ‘green line’ channel (T∼2 MK) . Here we report initial results from the SECIS experiment, including the discovery of a 6‐s intensity oscillation in an active region coronal loop.