X-ray Jets in Interconnecting Loops |
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Authors: | Fárník Franti?ek ?vestka Zdeněk |
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Institution: | (1) Astronomical Institute, Academy of Sciences of the Czech Republic, Czech Republic;(2) CASS, UCSD, La Jolla, CA, 92093-0424, U.S.A.;(3) SRON, Utrecht, The Netherlands |
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Abstract: | We present examples of X-ray jets, observed by the Soft X-ray Telescope on board Yohkoh, which followed trajectories of transequatorial interconnecting loops (TILs). All these TILs were preexisting, seen some
time before, but were mostly invisible at the time of the onset of the jet which often made them bright along their total
length. With few exceptions, these TIL-associated jets have properties very similar to other jets ejected inside active regions
or along open field lines (footpoints in X-ray bright points, recurrence, strong collimation, average speed close to 350 km s−1), but may reach larger lengths, in our examples up to 450 000 km. Exceptions are one jet that moved slower and one that had
no brightened area at its supposed source region at the time of its origin (an X-ray bright point appeared there only 3 hours
later). It appears that quite a high number of X-ray jets may be of this TIL-associated kind.
Supplementary material to this paper is available in electronic form at http://dx.doi.org/10.1023/A:1014963812437 |
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