A&A 436, L43-L46 (2005)
Blinker/macro-spicule activity in an off-limb polar regionE. O'Shea1, D. Banerjee2 and J. G. Doyle1
1 Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
2 Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034, India
(Received 6 April 2005 / Accepted 30 April 2005)
Using measurements of 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 above a region showing strong dynamic activity, with evidence for evacuation of plasma. The presence of blinkers is discussed in terms of the heating of spicular material.
Key words: Sun: UV radiation -- Sun: transition region -- Sun: atmosphere
© ESO 2005