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- Shell_star abstract "A shell star, also termed Gamma Cassiopeiae variable (GCAS), is a star having a spectrum that exhibits features indicating a circumstellar disc of gas surrounding the star at the equator. They exhibit irregular variations in their luminosity due to the outflow of matter. The shell stars are fast rotators, giving a partial explanation on the mechanism, but shell stars are still considered enigmatic. Shell stars belong to spectral types O7.5 to F5, but their spectra are characterized by enormously widened absorption lines due to fast rotation and the disc that contributes also to other spectral peculiarities. Rotation velocities are about 200–250 km/s, not far from the point when the rotational acceleration would disrupt the star. The spectra and general qualities of shell stars are hard to interpret, since normal spectral features are overlaid with variable emission, so luminosity class and exact spectral class might easily be misinterpreted.".
- Shell_star thumbnail Achernar.jpg?width=300.
- Shell_star wikiPageExternalLink 1982ApJS...50...55S.
- Shell_star wikiPageExternalLink 1994A%26A...283L..13Q.
- Shell_star wikiPageExternalLink 1996MNRAS.280L..31P.
- Shell_star wikiPageID "21149320".
- Shell_star wikiPageRevisionID "596611410".
- Shell_star hasPhotoCollection Shell_star.
- Shell_star subject Category:Eruptive_variables.
- Shell_star subject Category:Shell_stars.
- Shell_star subject Category:Star_types.
- Shell_star type CelestialBody109239740.
- Shell_star type EruptiveVariables.
- Shell_star type NaturalObject100019128.
- Shell_star type Object100002684.
- Shell_star type PhysicalEntity100001930.
- Shell_star type ShellStars.
- Shell_star type Star109444100.
- Shell_star type Thing100002452.
- Shell_star type Variable109468959.
- Shell_star type Whole100003553.
- Shell_star comment "A shell star, also termed Gamma Cassiopeiae variable (GCAS), is a star having a spectrum that exhibits features indicating a circumstellar disc of gas surrounding the star at the equator. They exhibit irregular variations in their luminosity due to the outflow of matter. The shell stars are fast rotators, giving a partial explanation on the mechanism, but shell stars are still considered enigmatic.".
- Shell_star label "Estrella variable Gamma Cassiopeiae".
- Shell_star label "Shell star".
- Shell_star label "Variabile Gamma Cassiopeiae".
- Shell_star label "Variável Gamma Cassiopeiae".
- Shell_star label "Étoile variable de type Gamma Cassiopeiae".
- Shell_star label "Оболочечная звезда".
- Shell_star label "ガス殻星".
- Shell_star label "殼層星".
- Shell_star sameAs Estrella_variable_Gamma_Cassiopeiae.
- Shell_star sameAs Étoile_variable_de_type_Gamma_Cassiopeiae.
- Shell_star sameAs Variabile_Gamma_Cassiopeiae.
- Shell_star sameAs ガス殻星.
- Shell_star sameAs Variável_Gamma_Cassiopeiae.
- Shell_star sameAs m.05b_z_l.
- Shell_star sameAs Q2288255.
- Shell_star sameAs Q2288255.
- Shell_star sameAs Shell_star.
- Shell_star wasDerivedFrom Shell_star?oldid=596611410.
- Shell_star depiction Achernar.jpg.
- Shell_star isPrimaryTopicOf Shell_star.