Volume 408, Number 2, September III 2003
|Page(s)||689 - 692|
|Section||Stellar structure and evolution|
|Published online||17 November 2003|
A WN4 companion to BD +62°2296 in Cas OB5*
Dpto. de Física, Ing. de Sistemas y Teoría de la Señal, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
2 Observatoire de Strasbourg, 11 rue de l'Université, 67000 Strasbourg, France
Corresponding author: firstname.lastname@example.org
Accepted: 7 July 2003
I report observations of the triple system BD +62°2296 showing that all its components are early-type stars, most likely physically related. The faintest component BD +62°2296B is a hitherto uncatalogued Wolf-Rayet star. The brightest component, star A, is shown to be a seemingly normal B2.5Ia supergiant. Long-slit spectroscopy of BD +62°2296B shows it to be a narrow-lined WN4 star. Given the spatial separation, the two objects are unlikely to form a physical binary. Spectra of the third visual component, BD +62°2296C, allow its classification as a B0III star. Such concentration of massive stars strongly suggests that BD +62°2296 is in reality a very compact young open cluster in the area of the OB association Cas OB5.
Key words: stars: early-type / stars: distances / stars: Wolf-Rayet / stars: individual: BD +62°2296 / stars: binaries: close / stars: binaries: spectroscopic
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.