Solar Physics Division Meeting 2000, June 19-22
Session 14. Flares and Transients
Oral, Chair: P. L. Bornmann, Thursday, June 22, 2000, 11:00am-12:00noon, 1:30-2:30pm, Forum

[Previous] | [Session 14] | [Next]

[14.04] Signatures of large-scale changes associated with the May 2, 1998 halo CME

S. Pohjolainen (Observatoire de Paris, DASOP, F-92195 Meudon, France), J. Khan (ISAS, Sagamihara, Kanagawa 229-8510, Japan and MSSL, University College London, UK), D. Maia (Observatoire de Paris, DASOP, Meudon, France), W. Otruba (Sonnenobservatorium Kanzelhoehe, A-9521 Treffen, Austria), M. Pick, N. Vilmer (Observatoire de Paris, DASOP, Meudon, France)

We present the results of an analysis of multi-wavelength observations preceding the detection of the halo coronal mass ejection (CME) of May 2, 1998, observed by SOHO LASCO. This CME was associated with a large eruptive flare, which showed jet-like flows in soft X-rays. We examine the development of these and other large-scale features including transequatorial loops and dimmings seen in soft X-ray images from Yohkoh, moving radio sources observed in metric and decimetric wavelengths by the Nancay Radioheliograph, Moreton waves and other features seen in H-alpha images from Kanzelhöhe and SOONSPOT, coronal waves and dimmings seen in EUV images from SOHO EIT, and hard X-ray sources observed by Yohkoh. From this analysis we discuss the relation between the flare, the inferred coronal shock waves, the large-scale structural changes, and the CME.

S.P. is funded by the Academy of Finland Contract No. 42576.

The author(s) of this abstract have provided an email address for comments about the abstract:

[Previous] | [Session 14] | [Next]