Probing strange stars with advanced gravitational wave detectors
@article{Moraes2014ProbingSS, title={Probing strange stars with advanced gravitational wave detectors}, author={Pedro H R S Moraes and Oswaldo D. Miranda}, journal={Monthly Notices of the Royal Astronomical Society}, year={2014}, volume={445} }
When a neutron star is compressed to huge densities, it may be converted to a strange star. In property of the event/year rate of a neutron star - strange star binary system, we show that the operational phase of advanced gravitational wave detectors may bring up some evidences that such strange stars do exist. Moreover we argue that such a system could be a plausible progenitor to GRB 051103 and GRB 070201, whose non-detection by LIGO last run awaits convincing explanation.
13 Citations
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References
SHOWING 1-10 OF 66 REFERENCES
Mass ejection by strange star mergers and observational implications.
- PhysicsPhysical review letters
- 2009
The Galactic production rate of strangelets is determined by performing simulations of strange star mergers and combining the results with recent estimates of stellar binary populations to find that the flux depends sensitively on the bag constant of the MIT bag model of QCD and disappears for high values of the bag Constant and thus more compact strange stars.
Conversion of Neutron Stars to Strange Stars as the Central Engine of Gamma-Ray Bursts
- PhysicsThe Astrophysical journal
- 2000
The total amount of energy liberated in the conversion is in the range of &parl0;1-4&parr0;x1053 ergs (1 order of magnitude larger than previous estimates) and is in agreement with the energy required to power gamma-ray burst sources at cosmological distances.
Measuring neutron-star radii with gravitational-wave detectors.
- PhysicsPhysical review letters
- 2002
This work presents a simple method for determining the compactness ratio M/R of NS based on the observed deviation of the GW energy spectrum from point-mass behavior at the end of inspiral.
Quark matter imprint on gravitational waves from oscillating stars
- Physics
- 2007
We discuss the possibility that the detection of gravitational waves emitted by compact stars may allow to constrain the MIT bag model of quark matter equation of state. Our results show that the…
Discriminating strange star mergers from neutron star mergers by gravitational-wave measurements
- Physics
- 2010
We perform three-dimensional relativistic hydrodynamical simulations of the coalescence of strange stars and explore the possibility to decide on the strange matter hypothesis by means of…
Strangeness in neutron stars
- Physics
- 2000
It is generally agreed that the tremendous densities reached in the centres of neutron stars provide a high-pressure environment in which numerous novel particle processes are likely to compete with…
The Rate of Neutron Star Binary Mergers in the Universe: Minimal Predictions for Gravity Wave Detectors
- Physics
- 1991
Of the many sources which gravitational wave observatories might see, merging neutron star binaries are the most predictable. Their waveforms at the observable frequencies are easy to calculate. And…
The Lowest-Mass Stellar Black Holes: Catastrophic Death of Neutron Stars in Gamma-Ray Bursts
- Physics
- 2007
Mergers of double neutron stars are considered the most likely progenitors for short gamma-ray bursts. Indeed, such a merger can produce a black hole with a transient accreting torus of nuclear…
The gravitational wave symphony of the Universe
- Physics
- 2000
The new millennium will see the upcoming of several ground-based interferometric gravitational wave antennas. Within the next decade a space-based antenna may also begin to observe the distant…
The Maximum Mass of a Neutron Star
- Physics
- 1996
Observational identification of black holes as members of binary systems requires the knowledge of the upper limit on the gravitational mass of a neutron star. We use modern equations of state for…