Chemical Composition of a Kinematically Identified Stellar Group in the Milky Way

TY - GEN

T1 - Chemical Composition of a Kinematically Identified Stellar Group in the Milky Way

AU - Stonkuté, E.

AU - Tautvaisiené, G.

AU - Zenoviené, R.

AU - Nordström, Birgitta

PY - 2012/1/1

Y1 - 2012/1/1

N2 - We present the preliminary results of a project aimed at high resolution spectral analysis of stars in a kinematically identified stellar group, suspected to belong to a remnant of a disrupted satellite galaxy. The 16 stars analysed by now have a metallicity around -0.7 dex, an average isochrone age of about 12Gyr, their chemical composition is homogeneous and distinct from the Galactic disk dwarfs. This provides further evidence of their common and maybe extragalactic origin.

AB - We present the preliminary results of a project aimed at high resolution spectral analysis of stars in a kinematically identified stellar group, suspected to belong to a remnant of a disrupted satellite galaxy. The 16 stars analysed by now have a metallicity around -0.7 dex, an average isochrone age of about 12Gyr, their chemical composition is homogeneous and distinct from the Galactic disk dwarfs. This provides further evidence of their common and maybe extragalactic origin.

U2 - 10.1007/978-3-642-22113-2_36

DO - 10.1007/978-3-642-22113-2_36

M3 - Conference article

SN - 1570-6591

VL - 2012

SP - 223

EP - 224

JO - Astrophysics and Space Science Proceedings

JF - Astrophysics and Space Science Proceedings

IS - Part 2

ER -