Kinematics of solar chromospheric surges of ar 10930

Su Chan Bong, Kyung Suk Cho, Vasyl Yurchyshyn

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Solar chromospheric surges are often reported to contain rotational motion. However, the details of the motion and driving mechanism of the surges are not yet fully understood. Recurrent surges with rotational motion at AR 10930 on the west limb are observed by Hinode Solar Optical Telescope (SOT) continuously from 11:21 UT on December 18 to 09:58 UT on December 19, 2006, using the Ca ii H broadband filter. We analyze details of the motion including number of turns from the rise of the surge to the fall, axial speed and acceleration. During the observation, rise and fall motion accompanying rotation appears recurrently. There occur a total of 14 surges at AR 10930 over 17 hours. The average duration is 45 minutes, and the average width, and length are 8 Mm, and 39 Mm, respectively. We speculate that the surges occurred by recurrent reconnections between the twisted prominence and large untwisted flux tube.

Original languageEnglish (US)
Pages (from-to)311-317
Number of pages7
JournalJournal of the Korean Astronomical Society
Volume47
Issue number6
DOIs
StatePublished - 2014

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Prominences — Sun: magnetic topology
  • Sun: chromosphere — Sun: filaments

Fingerprint

Dive into the research topics of 'Kinematics of solar chromospheric surges of ar 10930'. Together they form a unique fingerprint.

Cite this