Letter to the Editor
Blinker/macro-spicule activity in an off-limb polar region
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland e-mail: [eos;jgd]@arm.ac.uk
2 Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034, India e-mail: firstname.lastname@example.org
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