Mapping of the beta Cepheid instability strip - The cluster NGC 6231

Details Mapping of the beta Cepheid instability strip - The cluster NGC 6231 Mapping of the beta Cepheid instability strip - The cluster NGC 6231

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.212..889b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 212, Feb. 15, 1985, p. 889-897.

Other

26

B Stars, Cepheid Variables, Early Stars, Star Clusters, Stellar Evolution, Astronomical Photometry, Eclipsing Binary Stars, Hertzsprung-Russell Diagram, Open Clusters

Scientific paper

Intensive photometry of 17 early-B stars in the young open cluster NGC 6231 was conducted in order to map the Beta Cephei instability strip near the zero-age main sequence. The discovery of two certain Beta Cephei stars in addition to the four already known is reported. One probable and two possible variables of this class were also found. Several other stars in the instability strip were observed to be constant or microvariables of undertermined periods. One star is an eclipsing binary.

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