White dwarfs as astroparticle physics laboratories
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White dwarfs as astroparticle physics laboratories
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| Id. |
38563133 |
| Idioma |
inglés (Estados Unidos)
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| Titulo |
White dwarfs as astroparticle physics laboratories |
| Autor(es) |
Isern Villaboy, Jordi
García-Berro Montilla, Enrique
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| Localización |
Isern i Vilaboy, J; García-Berro Montilla, E. White dwarfs as astroparticle physics laboratories. EAS Publication Series, 2007, vol. 25, p. 171-174
978-2-7598-0017-9
http://hdl.handle.net/2117/1378
http://hdl.handle.net/2072/8590
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| Versión |
1.0 |
| Estado |
Final
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| Descripción |
White dwarfs are well studied objects. The relative simplic-ity of their physics allows to obtain very detailed models which canbe ultimately compared with their observed properties. Among themthere is a specific class of stars, the ZZ–Ceti stars that are character-ized by the extreme stability of their periods of pulsation. The rateof change of the period is closely related to the characteristic coolingtime of the star, which can be accurately computed. This property notonly allows to directly test the evolution of white dwarfs but also toconstrain parameters of any new physical theory able to perturb thecooling regime. This technique has been successfuly aplied to the caseof axions and can be used to constrain the properties of other theoreti-cal particles. The program we propose here consists in using the abilityof the Antartic plateau to perform long time and non–interrupted ob-servations to establish the seismological properties of a well defined setof variable white dwarfs (and other stable pulsators).
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| Tipo |
4 pàg.
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| Palabras clave |
Àrees temàtiques de la UPC::Física::Astronomia i astrofísica
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
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| Audiencia |
Estudiante
Profesor
Autor
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| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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| Formatos |
4 pàg.
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| Requerimientos técnicos |
Browser: Any
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| Fecha de contribución |
16-may-2009 |
| Contacto |
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