CCD‐Δ a  and  BV R  photometry of NGC 7296 | Zendy

Netopil M. | Zendy; Paunzen E. | Zendy; Maitzen H. M. | Zendy; Claret A. | Zendy; Pavlovski K. | Zendy; Tamajo E. | Zendy

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CCD‐Δ a and BV R photometry of NGC 7296

Author(s) -

Netopil M.,

Paunzen E.,

Maitzen H. M.,

Claret A.,

Pavlovski K.,

Tamajo E.

Publication year - 2005

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.200510407

Subject(s) - photometry (optics) , physics , open cluster , stars , astrophysics , photometric system , astronomy , star cluster , cluster (spacecraft) , computer science , programming language

The first CCD photometric investigation of the open cluster NGC 7296 up to now was performed within the narrow band Δ a photometric system, which enables us to detect peculiar objects. A deeper investigation of that cluster followed, using the standard BV R ‐Bessel filter set. The age and E ( B – V ) was determined independently to log t = 8.0 ± 0.1 and 0.15 ± 0.02, respectively by using Δ a and broadband photometry. In total five Be/Ae objects and two metal‐weak stars showing significant negative Δ a ‐values as well as one classical chemically peculiar star could be identified within that intermediate age open cluster. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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