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Coronal Response of Bi-directional Jets Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
 

Summary: Coronal Response of Bi-directional Jets
J.G. Doyle
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
M.S. Madjarska
Armagh Observatory, College Hill, Armagh BT61 9DG, N. Ireland
now at: Mullard Space Science Laboratory, UCL, Holmbury St. Mary, Dorking,
Surrey, RH5 6NT, UK
E. Dzifcakova
Astronomical Institute, Faculty of Mathematics, Physics and Informatics,
Comenius University, Mlynska dolina, 842 48 Bratislava 4, Slovakia
I.E. Dammasch
Mullard Space Science Laboratory, UCL, Holmbury St. Mary, Dorking, Surrey,
RH5 6NT, UK
Abstract. EUV bi-directional jets are a prominent class of phenomena charac-
terizing the solar transition region. Using simultaneously obtained SUMER obser-
vations in the chromospheric Si ii 1251.16  A and C i 1251.17  A, transition region
N v 1238.8  A and coronal Mg x 625  A lines we show an example of a bi-directional jet
registered in the chromospheric and the transition region lines but not showing any
detectable signature in the coronal line. The phenomenon, however, was also clearly
detected by the TRACE imager with the 171  A lter. This discrepancy is explained

  

Source: Armagh Observatory

 

Collections: Physics