Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection

Details Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.1806o&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #18.06; Bulletin of the American Astronomical Society, Vol. 28, p.1298

Astronomy and Astrophysics

Astronomy

Scientific paper

Many X-ray jet-like features, i.e., transient X-ray enhancements with an apparently collimated motion are observed with soft X-ray telescope aboard Yohkoh satellite. Many of these X-ray jets are associated with flares in X-ray bright points, emerging flux regions, or active regions. Shibata et al.(1992) reported that one of the X-ray jets in NOAA7070 associated with a flaring bright point at the footpoint of the H-alpha surge. An integrated analysis of the observations of NOAA7070 by SXT, H-alpha, and vector magnetogram showed that both the X-ray jets and H-alpha surges grow in the same direction almost perpendicular to the emerging loops (okubo et al., 1996). This indicates that the pre-existing oblique filed in this region is almost perpendicular to the emerging loops. We extended the numerical simulations of coronal X-ray jets by Yokoyama and Shibata (1995) to the case when the emerging magnetic fields cross the pre-existing oblique field (i.e., magnetic twists are injected into the oblique field as a result of magnetic reconnection). We carried out 2.5D MHD simulation including the three components of velocity and magnetic fileds. A new factor introduced in our model is the shear Alfven wave generated by the magnetic reconnection. We found that cool plasmas on emerging magnetic loops are more efficiently accelerated than those in previous 2D simulations. These cool plasmas may correspond to the H-alpha surges simultaneously ejected with the X-ray jets. The kinetic energy of jets, reconnection rate and the energy flux carried by Alfven waves increase with the angle between the emerging magnetic fields and the pre-existing field.

Affiliated with

Also associated with

No associations

Rating

Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection 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 Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous Acceleration of X-ray Jets and Surges by Magnetic Reconnection Accompanied by Twist Injection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-815265