PP Lac TESS light curves

In this study we aim to reveal the starspot behaviour in the contact binary PP Lac, using the clues from the eclipse timing variation (ETV) nature of the system, obtained from...本研究旨在利用从...获取的该系统食时变（eclipse timing variation，ETV）特性相关线索，揭示相接双星（contact binary）PP Lac中的星斑活动行为。