CCD photometric search for peculiar stars in open clusters. VI. NGC 1502, NGC 3105, Stock 16, NGC 6268, NGC 7235 and NGC 7510

Abstract

In a sample of six young open clusters we investigated 1753 objects using the narrow band, three filter Delta a photometric system resulting in the detection of eleven bona-fide magnetic chemically peculiar (CP) stars and five Be or metal-weak stars. The results for the distant cluster NGC 3105 is most important because of the still unknown influence of the global metallicity gradient of the Milky Way. These findings confirm that CP stars are present in open clusters of very young ages (log t > 6.90) at galactocentric distances up to 11.4 kpc. For all programme clusters the age, reddening, and distance modulus were derived using the corresponding isochrones. Some additional variable stars within Stock 16 could be identified by comparing different photometric studies.

arXiv comment7 pages, 2 figures, accepted by A&A

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Cited by in corpus (11)

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• CCD photometric search for peculiar stars in open clusters. VII. Berkeley 11, Berkeley 94, Haffner 15, Lynga 1, NGC 6031, NGC 6405, NGC 6834 and Ruprecht 130
• A Study of Open Clusters Frolov 1 and NGC 7510 using CCD UBV Photometry and Gaia DR2 Astrometry
• NGC 3105: a young open cluster with low metallicity
• A probable pre-main sequence chemically peculiar star in the open cluster Stock 16
• Chemically peculiar stars in the Large Magellanic Cloud
• GeMS in the Outer Galaxy: Near-Infrared Imaging of Three Young Clusters at Large Galactic Radii
• A search for peculiar stars in the open cluster Hogg 16
• NGC 3105: A Young Cluster in the Outer Galaxy
• Characterization of the Young Open Cluster G144.9+0.4 in the Camelopardalis OB1 Association