Browsing by Subject "Sun:transition region"

Now showing items 1-3 of 3

Blinker/Macro-spicule activity in an off-limb polar region

O`Shea, E; Banerjee, D; Doyle, J. G (EDP Sciences, 2005-06)

Using measurements of Ov 629.73 Å from the Coronal Diagnostic Spectrometer (CDS) on board SOHO we report on blinker activity in off-limb regions above the Northern pole of the Sun. The blinkers are found to be occurring ...
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 ...
Multi-wavelength study of a high velocity event near a sunspot

Lin, C. -H; Banerjee, D; O`Shea, E; Doyle, J. G (2006-05)

Context: .Jets with velocities higher than 200 km s-1 are often observed in the X-ray spectral range in the solar atmosphere, however, very few such objects are observed in the EUV range. Aims: .We report on an eruptive ...

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