The Library
Vertical kink oscillation of a magnetic flux rope structure in the solar corona
Tools
Kim, S., Nakariakov, V. M. (Valery M.) and Cho, K. -S. (2014) Vertical kink oscillation of a magnetic flux rope structure in the solar corona. Astrophysical Journal Letters, Volume 797 (Number 2). Article number L22. doi:10.1088/2041-8205/797/2/L22 ISSN 2041-8213.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1088/2041-8205/797/2/L22
Abstract
Vertical transverse oscillations of a coronal magnetic rope, observed simultaneously in the 171 Å and 304 Å bandpasses of the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory (SDO), are detected. The oscillation period is about 700 s and the displacement amplitude is about 1 Mm. The oscillation amplitude remains constant during the observation. Simultaneous observation of the rope in the bandpasses corresponding to the coronal and chromospheric temperatures suggests that it has a multi-thermal structure. Oscillatory patterns in 171 Å and 304 Å are coherent, which indicates that the observed kink oscillation is collective, in which the rope moves as a single entity. We interpret the oscillation as a fundamental standing vertically polarized kink mode of the rope, while the interpretation in terms of a perpendicular fast wave could not be entirely ruled out. In addition, the arcade situated above the rope and seen in the 171 Å bandpass shows an oscillatory motion with the period of about 1000 s.
Item Type: | Journal Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QB Astronomy | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | Astrophysical Journal Letters | ||||||||
Publisher: | IOP Publishing Ltd | ||||||||
ISSN: | 2041-8213 | ||||||||
Official Date: | 4 December 2014 | ||||||||
Dates: |
|
||||||||
Volume: | Volume 797 | ||||||||
Number: | Number 2 | ||||||||
Article Number: | Article number L22 | ||||||||
DOI: | 10.1088/2041-8205/797/2/L22 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |