Abstracts submitted by Deborah Baker
Hinode/EIS and XRT Observations of Hot Jets - A Failed Escape Attempt?
D. Baker [1]; J.L.Culhane [1]; L. van Driel-Gesztelyi [1]; L. Harra [1]; J. Sun [1]; G. Doschek [2]; D. Brooks [2]; L. Lundquist [3]; S. Kamio [4]; P. Young [5]; V. Hansteen [6]
[1]Mullard Space Science Laboratory/UCL, UK;[2]NRL, USA;[3]SAO,Cambridge, USA; [4]National Astronomical Observatory of Japan;[5]STFC, RAL, UK;[6]Institute of Astrophysics, U. of Oslo
It is generally accepted that X-ray jets (discovered in Yohkoh/SXT Data) in coronal holes are caused by magnetic reconnection between emerging flux and ambient 'open' magnetic field lines. In this work, we use Hinode EIS and XRT Instruments to present the first multi-wavelength study of 3 such X-ray jets and their associated bright points seen during a southern polar observing campaign. Light curves in 14 different emission lines were compared to those of Hinode/XRT. The light curves show bright points containing hotter lines than those of the associated jets. The evolution of emission by the jets and bright points is well correlated in time. In addition, the three jets show post-jet increases in their light curves, which, based on the temperature of the spectral lines in which they appear, look systematically cooler than the jets. We interpret this feature to be due to hot plasma of the jet, having been propelled upwards and failing to reach escape speed from the Sun, falling back in a cooler state along the jet's trajectory. |
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