IIA Institutional Repository

Browsing by Subject "Sun:corona"

Browsing by Subject "Sun:corona"

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  • Enhanced He{I} Absorption at the Feet of Solar X-Ray Loops 
    Venkatakrishnan, P; Sakurai, T; Suematsu, Y; Ichimoto, K (Astronomical Society of Japan, 1996)
    A comparison of He{I} spectroheliograms and Yohkoh soft X-ray images of active regions indicates that He{I} absorption is enhanced at the feet of hot X-ray loops. It is suggested that the conduction of heat from the loops ...
  • The extent of 3-min oscillations in regions other than sunspot plumes 
    Lin, C. -H; Banerjee, D; Doyle, J. G; O`Shea, E (EDP Science, 2005-12)
    The active region, AR0554, was observed with NIS/CDS on board SoHO to examine the extent and range of oscillations from a range of features. Among all the NIS spectral lines analysed, significant oscillations were found ...

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