Abundances of metal-poor stars in Sculptor

DOI

The study of the chemical abundances of metal-poor stars in dwarf galaxies provides a venue to constrain paradigms of chemical enrichment and galaxy formation. Here we present metallicity and carbon abundance measurements of 100 stars in Sculptor from medium-resolution (R~2000) spectra taken with the Magellan/Michigan Fiber System mounted on the Magellan-Clay 6.5m telescope at Las Campanas Observatory. We identify 24 extremely metal-poor star candidates ([Fe/H]{1.0). The existence of a large number of CEMP stars both in the halo and in Sculptor suggests that some halo CEMP stars may have originated from accreted early analogs of dwarf galaxies.

Cone search capability for table J/ApJ/856/142/table5 (Stellar parameters and abundances from Magellan/MagE spectra)

Cone search capability for table J/ApJ/856/142/table6 (Magellan-Clay/M2FS measurements)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18560142
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/856/142
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/856/142
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/856/142
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/856/142
Provenance
Creator Chiti A.; Simon J.D.; Frebel A.; Thompson I.B.; Shectman S.A.; Mateo M.,Bailey J.I.; Crane J.D.; Walker M.
Publisher CDS
Publication Year 2019
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; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy