Physics
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spro.proc..171w&link_type=abstract
Solar Physics with Radio Observations, Proceedings of the Nobeyama Symposium, held in Kiyosato, Japan, Oct. 27-30, 1998, Edited
Physics
Scientific paper
An eruption of a large (15o) north-south aligned quiescent prominence and associated coronal disturbance, which took place above the eastern solar limb near the equator on 28 August 1992, were observed at a wide range of wavelengths ranging from soft X-rays (Yohkoh) to microwaves (Nobeyama). The eruption was preceded by the formation of a large-scale jet which was apparently ejected near the root of the southern leg of the prominence. The characteristic outward speed of the jet was 450 km s-1. A potential-field presentation of the coronal magnetic field suggests that the jet was formed along the open field which was located immediately to the west of the magnetic arcade, originally surrounding the eruptive prominence. The temperature of the jet is suggested to be comparable to that of the nearby quiet corona (2 × 106 K). In the course of the prominence eruption, helically twisted loops surrounding the prominence were observed. This suggests that magnetic reconnection of the sheared arcade took place underneath the erupting prominence.
Ashizawa K.
Hudson Hugh H.
Ichimoto Kiyoshi
Irie Makoto
Kurokawa Hiroki
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