The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035

We compute the emission of gravitational radiation from pulsating white dwarfs. This is done by using an up-to-date stellar evolutionary code coupled with a state-of-the-art pulsational code. The emission of gravitational waves is computed for a standard 0.6 M⊙ white dwarf with a liquid carbon-oxyge...

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Detalles Bibliográficos
Autores principales: García Berro, E., Lorén Aguilar, P., Córsico, Alejandro Hugo, Althaus, Leandro Gabriel, Lobo, J. A., Isern, J.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Ciencias Astronómicas
Gravitational waves
Stars: evolution
Stars: oscillations
Stars: white dwarfs
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83245
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83245
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Gravitational waves
Stars: evolution
Stars: oscillations
Stars: white dwarfs
spellingShingle Ciencias Astronómicas
Gravitational waves
Stars: evolution
Stars: oscillations
Stars: white dwarfs
García Berro, E.
Lorén Aguilar, P.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Lobo, J. A.
Isern, J.
The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
topic_facet Ciencias Astronómicas
Gravitational waves
Stars: evolution
Stars: oscillations
Stars: white dwarfs
description We compute the emission of gravitational radiation from pulsating white dwarfs. This is done by using an up-to-date stellar evolutionary code coupled with a state-of-the-art pulsational code. The emission of gravitational waves is computed for a standard 0.6 M⊙ white dwarf with a liquid carbon-oxygen core and a hydrogen-rich envelope, for a massive DA white dwarf with a partially crystallized core for which various ℓ l = 2 modes have been observed (BPM 37093) and for PG 1159-035, the prototype of the GW Vir class of variable stars, for which several quadrupole modes have been observed as well. We find that these stars do not radiate sizeable amounts of gravitational waves through their observed pulsation g-modes, in line with previous studies. We also explore the possibility of detecting gravitational waves radiated by the f-mode and the p-modes. We find that in this case the gravitational wave signal is very large and, hence, the modes decay very rapidly. We also discuss the possible implications of our calculations for the detection of gravitational waves from pulsating white dwarfs within the framework of future space-borne interferometers like LISA.
format Articulo
Articulo
author García Berro, E.
Lorén Aguilar, P.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Lobo, J. A.
Isern, J.
author_facet García Berro, E.
Lorén Aguilar, P.
Córsico, Alejandro Hugo
Althaus, Leandro Gabriel
Lobo, J. A.
Isern, J.
author_sort García Berro, E.
title The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
title_short The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
title_full The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
title_fullStr The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
title_full_unstemmed The gravitational wave radiation of pulsating white dwarfs revisited: The case of BPM 37093 and PG 1159-035
title_sort gravitational wave radiation of pulsating white dwarfs revisited: the case of bpm 37093 and pg 1159-035
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/83245
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