TY - JOUR
T1 - Probing white dwarf interiors with LISA
T2 - Periastron precession in eccentric double white dwarfs
AU - Willems, B.
AU - Vecchio, A.
AU - Kalogera, V.
PY - 2008/1/29
Y1 - 2008/1/29
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevLett.100.041102
DO - 10.1103/PhysRevLett.100.041102
M3 - Article
C2 - 18352253
AN - SCOPUS:38749091692
SN - 0031-9007
VL - 100
JO - Physical review letters
JF - Physical review letters
IS - 4
M1 - 041102
ER -