Physics
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.505..497m&link_type=abstract
In: SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188, 11 - 15 Jun
Physics
Solar Coronal Holes
Scientific paper
High time resolution (≍13 sec cadence) Solar and Heliospheric Observatory (SOHO) Coronal Diagnostic Spectrometer (CDS) Grazing Incidence Spectrometer (GIS) time series data is analysed for evidence of quasi-periodic variability in the solar corona. The observations are obtained from a GIS study of a coronal hole boundary region taken in October 1997. A wavelet analysis is applied to EUV emission lines covering a temperature range of log Te = 5.3-6.1K. Wavelet analysis allows the frequency and temporal information of any periods present within the data to be analysed. Observations are presented of a time dependent periodicity positioned over a chromospheric network position located at the boundary position of a coronal hole.
Bromage Barbara J. I.
Marsh Michael S.
Walsh Robert W.
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