The open cluster NGC 346 (Niemela+, 1986)

Details The open cluster NGC 346 (Niemela+, 1986) The open cluster NGC 346 (Niemela+, 1986)

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat..60981133n&link_type=abstract

VizieR On-line Data Catalog: J/PASP/98/1133. Originally published in: 1986PASP...98.1133N

Physics

Magellanic Clouds, Clusters: Open, Photometry: Ccd

Scientific paper

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. (1 data file).

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