Probing white dwarf interiors with LISA: Periastron precession in eccentric double white dwarfs

B. Willems*, A. Vecchio, V. Kalogera

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

In globular clusters, dynamical interactions give rise to a population of eccentric double white dwarfs detectable by the Laser Interferometer Space Antenna (LISA) up to the Large Magellanic Cloud. In this Letter, we explore the detectability of periastron precession in these systems with LISA. Unlike previous investigations, we consider contributions due to tidal and rotational distortions of the binary components in addition to general relativistic contributions to the periastron precession. At orbital frequencies above a few mHz, we find that tides and stellar rotation dominate, opening up a possibly unique window to the study of the interior and structure of white dwarfs.

Original languageEnglish (US)
Article number041102
JournalPhysical review letters
Volume100
Issue number4
DOIs
StatePublished - Jan 29 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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