Measuring Neutron-Star Properties via Gravitational Waves from Neutron-Star Mergers
Abstract
We demonstrate by a large set of merger simulations for symmetric binary neutron stars (NSs) that there is a tight correlation between the frequency peak of the postmerger gravitational-wave (GW) emission and the physical properties of the nuclear equation of state (EoS), e.g., expressed by the radius of the maximum-mass Tolman-Oppenheimer-Volkhoff configuration. Therefore, a single measurement of the peak frequency of the postmerger GW signal will constrain the NS EoS significantly. For optimistic merger-rate estimates a corresponding detection with Advanced LIGO is expected to happen within an operation time of roughly a year.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2012
- DOI:
- 10.1103/PhysRevLett.108.011101
- arXiv:
- arXiv:1106.1616
- Bibcode:
- 2012PhRvL.108a1101B
- Keywords:
-
- 04.30.Db;
- 26.60.Kp;
- 95.85.Sz;
- 97.60.Jd;
- Wave generation and sources;
- Equations of state of neutron-star matter;
- Gravitational radiation magnetic fields and other observations;
- Neutron stars;
- Astrophysics - Solar and Stellar Astrophysics;
- General Relativity and Quantum Cosmology
- E-Print:
- 5 pages, 4 figures, accepted by Phys. Rev. Lett., revised version including referee comments