Horizontal branch stars in M22

Dataset

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