A POSSIBLE EXPLANATION OF REVERSED MAGNETIC-FIELD FEATURES OBSERVED IN NOAA AR-7321

Citation
Y. Liu et al., A POSSIBLE EXPLANATION OF REVERSED MAGNETIC-FIELD FEATURES OBSERVED IN NOAA AR-7321, Solar physics, 158(2), 1995, pp. 249-258
Citations number
9
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00380938
Volume
158
Issue
2
Year of publication
1995
Pages
249 - 258
Database
ISI
SICI code
0038-0938(1995)158:2<249:APEORM>2.0.ZU;2-9
Abstract
Observations of reversed-polarity features in the chromosphere as well as in the photosphere in the form of magnetic gulfs or islands of opp osite polarity have been reported recently. In this paper, we present a possible explanation for the appearance of reversed-polarity feature s observed in the chromospheric magnetograms of the NOAA AR 7321 obser ved during October 25-27, 1992. It is suggested that the large-scale r eversed-polarity features may occur due to the twisting of the smaller -scale magnetic flux tubes in the layer between the photosphere and th e chromosphere.