CCD-Δa and BV R photometry of NGC 7296

The first CCD photometric investigation of the open cluster NGC 7296 up to now was performed within the narrow band Δa 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 )...

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Bibliographic Details
Published in:	Astronomische Nachrichten Vol. 326; no. 8; pp. 734 - 737
Main Authors:	Netopil, M., Paunzen, E., Maitzen, H. M., Claret, A., Pavlovski, K., Tamajo, E.
Format:	Journal Article
Language:	English
Published:	Berlin WILEY-VCH Verlag 01-10-2005 WILEY‐VCH Verlag
Subjects:	stars: early-type stars: emission-line stars: emission‐line, Be stars: peculiar techniques: photometric
Online Access:	Get full text
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Summary:	The first CCD photometric investigation of the open cluster NGC 7296 up to now was performed within the narrow band Δa 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 Δa and broadband photometry. In total five Be/Ae objects and two metal‐weak stars showing significant negative Δa ‐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)
Bibliography:	istex:1D34A9B6DBF7AE7A0FE6533F5439249D4A193A18 ark:/67375/WNG-XL34WDXN-L Based on observations at the Hvar Observatory, University of Zagreb and the Leopold-Figl Observatory for Astrophysics, University of Vienna. ArticleID:ASNA200510407 Based on observations at the Hvar Observatory, University of Zagreb and the Leopold‐Figl Observatory for Astrophysics, University of Vienna.
ISSN:	0004-6337 1521-3994
DOI:	10.1002/asna.200510407