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rdf:type
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Description
| - Context. Even though it is broadly accepted that single Be stars are rapidly rotating stars surrounded by a flat rotating circumstellar disk, there is still a debate about how fast these stars rotate and also about the mechanisms involved in the angular-momentum and mass input in the disk. Aims. We study the properties of stars that rotate near their critical-rotation rate and investigate the properties of the disks formed by equatorial mass ejections. Methods. We used the most recent Geneva stellar evolutionary tracks for rapidly rotating stars that reach the critical limit and used a simple model for the disk structure. Results. We obtain that for a 9 M-circle dot star at solar metallicity, the minimum average velocity during the main-sequence (MS) phase to reach the critical velocity is around 330 km s(-1), whereas it would be 390 km s(-1) at the metallicity of the Small Magellanic Cloud (SMC).
- Context. Even though it is broadly accepted that single Be stars are rapidly rotating stars surrounded by a flat rotating circumstellar disk, there is still a debate about how fast these stars rotate and also about the mechanisms involved in the angular-momentum and mass input in the disk. Aims. We study the properties of stars that rotate near their critical-rotation rate and investigate the properties of the disks formed by equatorial mass ejections. Methods. We used the most recent Geneva stellar evolutionary tracks for rapidly rotating stars that reach the critical limit and used a simple model for the disk structure. Results. We obtain that for a 9 M-circle dot star at solar metallicity, the minimum average velocity during the main-sequence (MS) phase to reach the critical velocity is around 330 km s(-1), whereas it would be 390 km s(-1) at the metallicity of the Small Magellanic Cloud (SMC). (en)
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Title
| - Populations of rotating stars II. Rapid rotators and their link to Be-type stars
- Populations of rotating stars II. Rapid rotators and their link to Be-type stars (en)
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skos:prefLabel
| - Populations of rotating stars II. Rapid rotators and their link to Be-type stars
- Populations of rotating stars II. Rapid rotators and their link to Be-type stars (en)
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skos:notation
| - RIV/00216224:14310/13:00067018!RIV14-GA0-14310___
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216224:14310/13:00067018
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - stars: general; stars: evolution; stars: rotation; stars: emission-line; Be; stars: mass-loss (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - FR - Francouzská republika
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Krtička, Jiří
- Meynet, Georges
- Georgy, C.
- Granada, A.
- Ekstroem, S.
- Maeder, A.
- Owocki, S.
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1051/0004-6361/201220559
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http://localhost/t...ganizacniJednotka
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