INFERRING PHYSICAL PARAMETERS OF COMPACT STARS FROM THEIR f-MODE GRAVITATIONAL WAVE SIGNALS
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AbstractWe propose here a robust scheme to infer the physical parameters of compact stars from their f-mode gravitational wave signals. We first show that the frequency and the damping rate of f-mode oscillation of compact stars can be expressed in terms of universal functions of stellar mass and moment of inertia. By employing the universality in the f-mode one can then infer accurate values of the mass, the moment of inertia, and the radius of a compact star. In addition, we demonstrate that our new scheme works well for both realistic neutron stars and quark stars, and hence provides a unifying way to infer the physical parameters of compact stars.
All Author(s) ListLau HK, Leung PT, Lin LM
Journal nameAstrophysical Journal
Year2010
Month5
Day10
Volume Number714
Issue Number2
PublisherAmerican Astronomical Society
Pages1234 - 1238
ISSN0004-637X
eISSN1538-4357
LanguagesEnglish-United Kingdom
Keywordsasteroseismology; equation of state; gravitational waves; stars: neutron; stars: oscillations
Web of Science Subject CategoriesAstronomy & Astrophysics; ASTRONOMY & ASTROPHYSICS

Last updated on 2020-18-09 at 01:03