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| '''Beta Cephei variables''' are [[variable stars]] which exhibit variations in their brightness due to pulsations of the stars' surfaces. The point of maximum brightness roughly corresponds to the maximum contraction of the star. Typically, Beta Cephei variables change in brightness by 0.01 to 0.3 magnitudes with periods of 0.1 to 0.6 days. These stars are [[main sequence|main-sequence]] stars of masses between about 7 and 20 M<sub><math>_\odot</math></sub>. | | Marvella is what you can contact her but it's not the most feminine title out there. For years I've been operating as a payroll clerk. One of the issues she loves most is to read comics and she'll be beginning some thing else along with it. North Dakota is exactly where me and my spouse reside.<br><br>my blog - [http://Xrambo.com/user/NEme Xrambo.com] |
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| The pulsations of Beta Cephei variables are driven by the [[Κ mechanism|kappa mechanism]].
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| The prototype of these variable stars, [[Beta Cephei]], shows variation in [[apparent magnitude]] from +3.16 to +3.27 with a period of 4.57 hours.
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| These stars should not be confused with [[Cepheid variable]]s, which are named after [[Delta Cephei]].
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| ==References==
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| *Moskalik P., Dziembowski W.A., 1992, "New opacities and the origin of the Beta Cephei pulsation", Astronomy & Astrophysics, 256, L5
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| *Samus N.N., Durlevich O.V., et al. ''Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.)''
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| *Stankov A., Handler G., 2005, "Catalog of Galactic Beta Cephei Stars", Astrophysical Journal Supplement, 158, 193
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| ==External links==
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| * [http://www.aavso.org/vsots_betacep AAVSO Variable Star of the Month. Winter 2005: The Beta Cephei Stars and Their Relatives]
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| {{Variable star topics}}
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| {{var-star-stub}}
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| [[Category:Beta Cephei variables|*]]
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Latest revision as of 22:33, 2 November 2014
Marvella is what you can contact her but it's not the most feminine title out there. For years I've been operating as a payroll clerk. One of the issues she loves most is to read comics and she'll be beginning some thing else along with it. North Dakota is exactly where me and my spouse reside.
my blog - Xrambo.com