BATSE GAMMA-RAY BURST LINE SEARCH .4. LINE CANDIDATES FROM THE VISUAL-SEARCH

We evaluate the significance of the line candidates identified by a vi sual search of burst spectra from BATSE's Spectroscopy Detectors. None of the candidates satisfy our detection criteria: an F-test probabili ty less than 10(-4) for a feature in one detector and consistency amon g the detectors that viewed the burst. Most of the candidates are not very significant and are likely to be fluctuations. Because of the exp ectation of finding absorption lines, the search was biased toward abs orption features. We do not have a quantitative measure of the complet eness of the search, which would enable a comparison with previous mis sions. Therefore, a more objective computerized search has begun.