The gravitational wave radiation of pulsating white dwarfs

P. LORÉN-AGUILAR; J. ISERN; L. G. ALTHAUS; A. H. CÓRSICO; J. A. LOBO; E. GARCÍA-BERRO

España

Workshop; A Century of Relativity Physics: ERE 2005; XXVIII Spanish Relativity Meeting; 2006

We compute the emission of gravitational radiation from pulsating white dwarfs. This is done for a standard 0.6Msolar white dwarf with a liquid CO core and a H-rich envelope, for a massive DA white dwarf with a partially crystallized core for which various l = 2 modes have been observed (BPM 37093) and for PG 1159-035 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 g-modes. 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. We also discuss the possible implications for the detection of gravitational waves from pulsating white dwarfs within the framework of future space-borne interferometers like LISA.