Volume 433, Number 3, April III 2005
|Page(s)||1031 - 1035|
|Section||Stellar structure and evolution|
|Published online||29 March 2005|
Metallicity of mono- and multiperiodic Cephei stars
Astronomical Institute of Wrocław University, ul. Kopernika 11, 51-622 Wrocław, Poland e-mail: firstname.lastname@example.org
Accepted: 2 December 2004
Analyzing IUE ultraviolet spectra of β Cep pulsating stars we noticed that multiperiodic variables have a larger mean metal abundance in the photosphere, [ m/H] , than monoperiodic ones. We apply statistical tests to verify this dichotomy. We obtain that, with a large probability, the multiperiodic β Cep stars have greater values of [ m/H] . This result is consistent with the linear non-adiabatic theory of pulsation of early B-type stars.
Key words: stars: abundances / stars: variables: general / methods: statistical
© ESO, 2005
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.