Title of article
Chemical Fingerprinting and Chemical Analysis of Galactic Halo Substructure
Author/Authors
Steven R. Majewski، نويسنده , , Mei-Yin Chou، نويسنده , , Katia Cunha، نويسنده , , Verne V. Smith، نويسنده , , Richard J. Patterson and David Martinez-Delgado، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
2
From page
364
To page
365
Abstract
We present high-resolution spectroscopic measurements of the abundances of the alike element titanium (Ti) and s-process elements yttrium (Y) and lanthanum (La) for M giant candidates of (a) the Sagittarius (Sgr) dwarf spheroidal + tidal tail system, (b) the Triangulum-Andromeda (TriAnd) Star Cloud, and (c) the Galactic Anticenter Stellar Structure (GASS, or Monoceros Stream). All three systems show abundance patterns unlike the Milky Way but typical of dwarf galaxies. The Sgr system abundance patterns resemble those of the Large Magellanic Cloud. GASS/Mon chemically resembles Sgr but is distinct from TriAnd, a result that does not support previous suggestions that TriAnd is a piece of the Monoceros Stream.
Keywords
stars: abundances , galaxies: interactions , Galaxy: halo , Galaxy: structure
Journal title
Proceedings of the International Astronomical Union
Serial Year
2009
Journal title
Proceedings of the International Astronomical Union
Record number
673280
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