Distinguishing Newly Born Strange Stars from Neutron Stars with g-Mode Oscillations

Journal Article · Fri Oct 31 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.101.181102· OSTI ID:21179857

Weijie, Fu ^[1]; Haiqing, Wei ^[2]; Yuxin, Liu ^[1]

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1. Department of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871 (China)
2. oLambda, Inc., Sunnyvale, California 94089 (United States)

The gravity-mode (g-mode) eigenfrequencies of newly born strange quark stars (SQSs) and neutron stars (NSs) are studied. It is found that the eigenfrequencies in SQSs are much lower than those in NSs by almost 1 order of magnitude, since the components of a SQS are all extremely relativistic particles while nucleons in a NS are nonrelativistic. We therefore propose that newly born SQSs can be distinguished from the NSs by detecting the eigenfrequencies of the g-mode pulsations of supernovae cores through gravitational radiation by LIGO-class detectors.

• OSTI ID: 21179857
• Journal Information: Physical Review Letters, Vol. 101, Issue 18; Other Information: DOI: 10.1103/PhysRevLett.101.181102; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EIGENFREQUENCY
GRAVITATION
GRAVITATIONAL RADIATION
NEUTRON STARS
NUCLEONS
OSCILLATION MODES
PULSATIONS
RELATIVISTIC RANGE
S QUARKS
STAR EVOLUTION