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G. Yang (NJIT)
A statistical study of filament and prominence disappearances is described in this article. A nearly complete set of all Big Bear Solar Observatory H\alpha full disk images between January 1997 and June 1999 were searched for filament and prominence disappearances and a list of events was compiled.
Comparison of these data with those from EIT, LASCO, and Yohkoh, and also data from ACE and WIND is being made to obtain (1) the relationship between CME events and filament disappearances and (2) the relationship between filament and prominence disappearances and other coronal phenomena such as the global rearrangement of magnetic field, as well as chromospheric H\alpha brightening.
Early result shows that most of filament disappearance events seem to have no corresponding CME events. The reasons are discussed in the article.
The author(s) of this abstract have provided an email address for comments about the abstract: gyang@solar.njit.edu