Reformation of a coronal helmet streamer by magnetic reconnection after a coronal mass ejection
Abstract
A bright feature observed on Jan. 24-26, 1992 with the soft X-ray telescope on the YOHKOH spacecraft and with the coronameter at the Mauna Loa Solar Observatory assumed the appearance of a coronal helmet streamer as it slowly expanded. Mauna Loa observations from Jan. 22-24 indicate that a prominence eruption and coronal mass ejection occurred before this feature was seen. We interpret the Jan. 24-26 observations as evidence for “reformation” of a magnetically closed helmet structure as a consequence of magnetic reconnection that proceeded along a vertical magnetic neutral sheet formed by the mass ejection.
- Publication:
-
Geophysical Research Letters
- Pub Date:
- December 1993
- DOI:
- 10.1029/93GL01449
- Bibcode:
- 1993GeoRL..20.2785H
- Keywords:
-
- Astronomical Models;
- Coronal Loops;
- Solar Flares;
- Stellar Mass Ejection;
- Image Processing;
- Magnetic Fields;
- Neutral Sheets;
- Solar Observatories;
- Solar X-Rays;
- Solar Physics;
- Astrophysics;
- and Astronomy: Corona and transition region;
- and Astronomy: Flares and mass ejections;
- and Astronomy: Magnetic fields;
- and Astronomy: X rays and gamma rays