Chemical abundances for 15 extreme-velocity stars

Little is known about the origin of the fastest stars in the Galaxy. Our understanding of the chemical evolution history of the Milky Way and surrounding dwarf galaxies allows...学界对于银河系中运动速度最快的恒星的起源仍知之甚少。我们对银河系及其周边矮星系的化学演化历史的认知，使得...