  The tremendous tidal force that is linked to the supermassive black hole
(SMBH) at the center of our galaxy is expected to strongly subdue star
formation in its vicinity. Stars within 1" from the SMBH thus likely formed
further from the SMBH and migrated to their current positions. In this study,
spectroscopic observations of the star S0-6/S10, one of the closest (projected
distance from the SMBH of about 0.3") late-type stars were conducted. Using
metal absorption lines in the spectra of S0-6, the radial velocity of S0-6 from
2014 to 2021 was measured, and a marginal acceleration was detected, which
indicated that S0-6 is close to the SMBH. The S0-6 spectra were employed to
determine its stellar parameters including temperature, chemical abundances
([M/H], [Fe/H], [alpha/Fe], [Ca/Fe], [Mg/Fe], [Ti/Fe]), and age. As suggested
by the results of this study, S0-6 is very old (> ~10 Gyr) and has an origin
different from that of stars born in the central pc region.
