Joint observations of propagating oscillations with SOHO/CDS and TRACE

Details Joint observations of propagating oscillations with SOHO/CDS and TRACE Joint observations of propagating oscillations with SOHO/CDS and TRACE

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...404l..37m&link_type=abstract

Astronomy and Astrophysics, v.404, p.L37-L41 (2003)

Astronomy and Astrophysics

Astrophysics

37

Sun: Corona, Sun: Oscillations, Sun: Transition Region, Sun: Uv Radiation, Waves

Scientific paper

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 He I, O V and Mg Ix lines.

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