High-resolution observations of plasma jets in the solar corona

Alexander, D. and Fletcher, L. (1999) High-resolution observations of plasma jets in the solar corona. Solar Physics, 190(1-22), pp. 167-184. (doi:10.1023/A:1005213826793)

Alexander, D. and Fletcher, L. (1999) High-resolution observations of plasma jets in the solar corona. Solar Physics, 190(1-22), pp. 167-184. (doi:10.1023/A:1005213826793)

Full text not currently available from Enlighten.

Abstract

We present recent observations of coronal jets, made by TRACE and Yohkoh/SXT on 28 May and 19 August 1998. The high spatial resolution of TRACE enables us to see in detail the process of material ejection; in the line of Fe ix (one million degrees) we see both bright emitting material and dark absorbing/scattering material being ejected, i.e., both hot and cold material, highly collimated and apparently ejected along the direction of the overlying field lines. Bright ejecta are seen simultaneously in Lyman α for one event and Yohkoh/SXT in the other. The jets on the two days are different in that the 19 August jet displays the morphology typical of a one-sided anemone jet while the 28 May jet exhibits a two-sided jet morphology. The 19 August jet shows evidence for rotation and an interesting bifurcation at large distances from the energy release site. We study the physical properties and energetics of these jetting events, and conclude that existing theoretical models capture the essential physics of the jet phenomena.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fletcher, Professor Lyndsay
Authors: Alexander, D., and Fletcher, L.
Subjects:Q Science > QB Astronomy
Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Research Group:Astronomy and Astrophysics
Journal Name:Solar Physics
Publisher:Springer Verlag
ISSN:0038-0938
ISSN (Online):1573-093X

University Staff: Request a correction | Enlighten Editors: Update this record