Line list for seven target PAndAS clusters Virtual Observatory Resource

Authors
  1. Sakari C.M.
  2. Venn K.A.
  3. Mackey D.
  4. Shetrone M.D.
  5. Dotter A.,Ferguson A.M.N.
  6. Huxor A.
  7. Published by
    CDS
Abstract

Detailed chemical abundances are presented for seven M31 outer halo globular clusters (with projected distances from M31 greater than 30 kpc), as derived from high-resolution integrated light spectra taken with the Hobby-Eberly Telescope. Five of these clusters were recently discovered in the Pan-Andromeda Archaeological Survey (PAndAS) - this paper presents the first determinations of integrated Fe, Na, Mg, Ca, Ti, Ni, Ba, and Eu abundances for these clusters. Four of the target clusters (PA06, PA53, PA54, and PA56) are metal poor ([Fe/H]< -1.5), {alpha}-enhanced (though they are possibly less {alpha}-enhanced than Milky Way stars at the 1{sigma} level), and show signs of star-to-star Na and Mg variations. The other three globular clusters (H10, H23, and PA17) are more metal rich, with metallicities ranging from [Fe/H]=-1.4 to -0.9. While H23 is chemically similar to Milky Way field stars, Milky Way globular clusters, and other M31 clusters, H10 and PA17, have moderately low [Ca/Fe], compared to Milky Way field stars and clusters. Additionally, PA17's high [Mg/Ca] and [Ba/Eu] ratios are distinct from Milky Way stars, and are in better agreement with the stars and clusters in the Large Magellanic Cloud. None of the clusters studied here can be conclusively linked to any of the identified streams from PAndAS; however, based on their locations, kinematics, metallicities, and detailed abundances, the most metal-rich PAndAS clusters H23 and PA17 may be associated with the progenitor of the Giant Stellar Stream, H10 may be associated with the SW cloud, and PA53 and PA56 may be associated with the eastern cloud.

Keywords
  1. galaxies
  2. globular-star-clusters
  3. apparent-magnitude
  4. metallicity
  5. spectroscopy
  6. line-intensities
Bibliographic source Bibcode
2015MNRAS.448.1314S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/1314
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/448/1314
Document Object Identifer DOI
doi:10.26093/cds/vizier.74481314

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/448/1314
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/448/1314
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/448/1314
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/448/1314/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/448/1314/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/448/1314/table1?

History

2017-11-27T13:26:22Z
Resource record created
2017-11-27T13:26:22Z
Created
2024-08-14T20:19:59Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr