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Discovery of New Be Stars in the Galactic Open Cluster NGC7128

Published online by Cambridge University Press:  12 April 2016

Z. Balog ,
J. Vinkó ,
G. Fűrész ,
E. J. Alfaro ,
A. J. Delgado  and
A. Moitinho
Z. Balog
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street, Cambridge MA, 02138USA
J. Vinkó
Affiliation:
Magyary Postdoctoral Fellow, Dept of Optics, JATE University, H-6720 Dóm tér 9. Szeged, Hungary
G. Fűrész
Affiliation:
Dept of Exp. Physics, JATE University, H-6720 Dóm tér 9. Szeged, Hungary
E. J. Alfaro
Affiliation:
Instituto de Astrofísica de Andalucia, Camino Bajo de Huetor, 24 E-18008 Granada, Spain
A. J. Delgado
Affiliation:
Instituto de Astrofísica de Andalucia, Camino Bajo de Huetor, 24 E-18008 Granada, Spain
A. Moitinho
Affiliation:
Instituto de Astrofísica de Andalucia, Camino Bajo de Huetor, 24 E-18008 Granada, Spain

Abstract

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We present medium resolution spectroscopy (λ/Δλ ≈ 7,000) covering 6500-6750 Å of three emission stars in the highly reddened young open cluster NGC7128. Two of them were previously unknown. The known Be star (V1814 Cyg) is an irregular variable; one of the newly discovered stars is an eclipsing binary (V1481 Cyg) (Jerzykiewicz et al., 1996.). Physical parameters of the cluster have been determined from new UBV and uvbyHβ photometric measurements.

Type
1. Overview
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 67 - 70
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

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