The open cluster NGC 346

We present CCD photometry and spectrographic observations for stars in the open cluster NGC 346, which excites the largest H II region in the Small Magellanic Cloud. These observations show that NGC 346 is an extremely young cluster, containing more than 20 hot O-type stars. A radial-velocity study of the brightest stars, and also of the nearby supergiant Of star Sk 80, discloses atmospheric expansion due to strong stellar winds, but no large-amplitude radial-velocity variations due to short-period binary motion. However, two stars are probably longer period binaries.

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/PASP/98/1133
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PASP/98/1133
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PASP/98/1133
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/PASP/98/1133
Provenance
Creator NIEMELA V.S.; MARRACO H.G; CABANNE M.L.
Publisher CDS
Publication Year 1997
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; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy