Pal1-I elemental equivalent widths and abundances Virtual Observatory Resource

Authors
  1. Monaco L.
  2. Saviane I.
  3. Correnti M.
  4. Bonifacio P.
  5. Geisler D.
  6. Published by
    CDS
Abstract

Palomar 1 is a peculiar globular cluster (GC). It is the youngest Galactic GC and it has been tentatively associated to several of the substructures recently discovered in the Milky Way (MW), including the Canis Major (CMa) overdensity and the Galactic Anticenter Stellar Structure (GASS). In order to provide further insights into its origin, we present the first high resolution chemical abundance analysis for one red giant in Pal 1. We obtained high resolution (R=30000) spectra for one red giant star in Pal 1 using the High Dispersion Spectrograph (HDS) mounted at the SUBARU telescope. We used ATLAS-9 model atmospheres coupled with the SYNTHE and WIDTH calculation codes to derive chemical abundances from the measured line equivalent widths of 18 among alpha, Iron-peak, light and heavy elements. The Palomar 1 chemical pattern is broadly compatible to that of the MW open clusters population and similar to disk stars. It is, instead, remarkably different from that of the Sagittarius (Sgr) dwarf spheroidal galaxy. If Pal 1 association with either CMa or GASS will be confirmed, this will imply that these systems had a chemical evolution similar to that of the Galactic disk.

Keywords
  1. globular-star-clusters
  2. giant-stars
  3. chemical-abundances
  4. line-intensities
Bibliographic source Bibcode
2011A&A...525A.124M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/525/A124
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/525/A124
Document Object Identifer DOI
doi:10.26093/cds/vizier.35250124

Access

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/525/A124
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History

2010-12-07T12:55:19Z
Resource record created
2010-12-07T12:55:19Z
Created
2013-02-13T09:31:13Z
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