A new Hyper-Runaway star discovered from LAMOST and GAIA: ejected almost in the galactic rotation direction

Yin-Bi Li, A-Li Luo, Gang Zhao +11

In this paper, we report the discovery of a new late-B type unbound hyper-runaway star (LAMOST-HVS4) from the LAMOST spectroscopic surveys. According to its atmospheric parameters,…