Issue |
A&A
Volume 404, Number 2, June III 2003
|
|
---|---|---|
Page(s) | L37 - L41 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:20030709 | |
Published online | 02 June 2003 |
Letter to the Editor
Joint observations of propagating oscillations with SOHO/CDS and TRACE
1
Centre for Astrophysics, University of Central Lancashire, Preston, PR1 2HE, England
2
School of Mathematics and Statistics, University of St. Andrews, North Haugh, St. Andrews, KY16 9SS, Scotland
3
L3 Communications EER Systems Inc., NASA GSFC, Code 682.3, Bldg. 26, Greenbelt, MD 20771, USA
Corresponding author: M. S. Marsh, mmarsh@uclan.ac.uk
Received:
18
March
2003
Accepted:
12
May
2003
Joint Observing Program (JOP) 83 Solar and Heliospheric
Observatory/Coronal Diagnostic Spectrometer (SOHO/CDS) and
Transition Region and Coronal Explorer (TRACE) data is
analysed for evidence of propagating intensity oscillations along
loop structures in the solar corona. A propagating intensity
oscillation with a minimum estimated speed of 50–195 km s-1
is observed within a TRACE 171 Å coronal loop using a
running difference method. Co-spatial and co-temporal
CDS and TRACE observations of this loop are analysed using
a wavelet analysis method. The TRACE data shows a propagating
oscillation with a period of ≈300 s. This period is also
observed with CDS suggesting propagating oscillations at chromospheric,
transition region and coronal temperatures in the
,
and
lines.
Key words: Sun: Corona / Sun: oscillations / Sun: Transition Region / Sun: UV radiation / waves
© ESO, 2003
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