A&A 436, L43-L46 (2005)
DOI: 10.1051/0004-6361:200500119
Letter
Blinker/macro-spicule activity in an off-limb polar region
E. O'Shea1, D. Banerjee2 and J. G. Doyle11 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: dipu@iiap.res.in
(Received 6 April 2005 / Accepted 30 April 2005)
Abstract
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
BibSonomy
CiteUlike
Connotea
Del.icio.us
Digg
Facebook