Daniel Reichart of the University of Chicago and Titus Galama of the University of Amsterdam independently analyzed GRB 970228's optical light curve, both concluding that the host object may have undergone a supernova explosion several weeks before the gamma-ray burst occurred.
芝加哥大学的丹尼尔·赖卡特和阿姆斯特丹大学的提图斯·加拉玛各自独立地分析了GRB 970228的光学光变曲线，都总结出寄主天体可能在伽玛射线暴发生前几周发生了一次超新星爆发。