Chemical Fingerprinting and Chemical Analysis of Galactic Halo Substructure

Bibcode
2010IAUS..265..364M
DOI
10.1017/S1743921310000943
Majewski, Steven R.; Chou, Mei-Yin; Cunha, Katia; Smith, Verne V.; Patterson, Richard J.; Martínez-Delgado, D.
Bibliographical reference

Chemical Abundances in the Universe: Connecting First Stars to Planets, Proceedings of the International Astronomical Union, IAU Symposium, Volume 265, p. 364-365

Advertised on:
3
2010
Number of authors
6
IAC number of authors
1
Citations
0
Refereed citations
0
Description
We present high-resolution spectroscopic measurements of the abundances of the α-like 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.
Type
Non-refereed
Galaxies

It may interest you

  • Non-refereed
    Design and manufacture of athermalized optomechanical mounts for GRANCAIN, the infrared imaging instrument for GTC's adaptive optics
    GRANCAIN (GRAN CAmara INfrarroja) is a first-light imaging instrument in the infrared J, H and K bands that will be integrated into the adaptive optics focus of the Gran Telescopio de Canarias. The purpose of the instrument is to capture SWIR diffraction-limited images for a field of view of 22x22 arcsec. The instrument boasts a telecentric optical
    González-Carretero, Eduardo D. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13100E..6VG
    Citations
    0
  • Non-refereed
    Optical coating facilities at the Instituto de Astrofísica de Canarias
    The Instrumentation Division of the Instituto de Astrofísica de Canarias (IAC) is involved since several years in upgrading its capacities to design and manufacture optical components. To this end, we have created a new laboratory (Centre for Advanced Optical Systems, CSOA) which will be capable to design, fabricate and qualify large optical
    Insausti, M. et al.

    Advertised on:

    8
    2024
    Bibcode
    2024SPIE13100E..23I
    Citations
    0
  • Non-refereed
    Measuring Rotation Periods and Stellar Oscillations in Red Giants with TESS Data
    TESS is a powerful engine for studying stellar variability. However, it has been challenging to adopt methods used for other space missions, such as Kepler, to infer rotation periods and solar-like oscillation frequencies in TESS data. The availability of multiple sectors of data for most targets, improved stability, and the release of new
    García, Rafael A. et al.

    Advertised on:

    7
    2024
    Bibcode
    2024tsc3.confE..32G
    Citations
    0