摘要:
   Equipped with three CCD cameras, Mephisto is capable of simultaneously imaging the same patch of sky in three bands (ugi or vrz) to yield real-time colors of different astronomical transients and variables. Specifically, the scheduled D/H/M surveys will deliver precise light curves and colors sampled at cadences ranging from minutes to months for millions of celestial objects in fields of tens to thousands square degree. Besides, the multi-channel and high-cadence observations will enable efficient searches and classifications of different types of transients and variables. In this talk, I will review the Mephisto time-domain surveys and its current status.