Discovery of Nine Super Li-rich Unevolved Stars from the LAMOST Survey
  Based on the Large Sky Area Multi-Object Fiber Spectroscopic Telescope
(LAMOST) medium-resolution spectroscopic survey (MRS), we report the discovery
of nine super Li-rich unevolved stars with A(Li) $>$ 3.8 dex. These objects
show unusually high levels of lithium abundances up to three times higher than
the meteoritic value of 3.3 dex, which indicates that they must have
experienced a history of lithium enrichment. It is found that seven of our
program stars are fast rotators with $vsini>9$ km\,s$^{-1}$, which suggests
that the accretion of circumstellar matter may be the main contributor to the
lithium enhancement of these unevolved stars, however, other sources cannot be
excluded.
