Horizontal branch stars in M22

DOI

We obtained high-resolution spectra for 94 candidate stars belonging to the HB of M 22 with FLAMES. Previous works have indicated that this cluster has split subgiant (SGB) and red giant branches (RGB) and hosts two different stellar populations, differing in overall metal abundance and both exhibiting a Na-O anti-correlation. The HB stars we observed span a restricted temperature range (7800

Identifier
DOI http://doi.org/10.26093/cds/vizier.35630013
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/563/A13
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/563/A13
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/563/A13
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/563/A13
Provenance
Creator Gratton R.G.; Lucatello S.; Sollima A.; Carretta E.; Bragaglia A.,Momany Y.; D'Orazi V.; Cassisi S.; Salaris M.
Publisher CDS
Publication Year 2014
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Interdisciplinary Astronomy; Natural Sciences; Physics; Stellar Astronomy