A Model for Coronal Hole Jets

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

7511 Coronal Holes, 7524 Magnetic Fields, 7526 Magnetic Reconnection (2723, 7835)

Scientific paper

The recent observations from XRT on Hinode show dramatically that coronal hole are populated with intense X-ray jets that can reach heights of solar radii. These jets appear to originate from closed magnetic-field regions inside the holes; consequently, a natural explanation for these jets is that they are due to interchange reconnection between the open field of the hole and the closed field of an embedded bipole. This type of interchange reconnection has long been postulated as the driver, not only of coronal jets, but also for the solar wind itself. We argue, however, that the explosive nature of the jets imposes severe requirements on the reconnection that are not easily satisfied by realistic 3D models. In particular, the reconnection must have a "switch-on" nature in that it stays off until a substantial store of free energy has been accumulated, but then turns on abruptly and stays on until much of this free energy is released. We discuss the possible magnetic topologies of an embedded bipole in an open field region and present recent 3D simulations of a model in which interchange reconnection does, indeed, yield a large burst of energy release. We also discuss the implications of these results for the Hinode observations. This work was supported, in part, by NASA, ONR, and the NSF.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A Model for Coronal Hole Jets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Model for Coronal Hole Jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Model for Coronal Hole Jets will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1416218

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.