Journal
PHYSICAL REVIEW LETTERS
Volume 111, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.111.131101
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Funding
- Alexander von Humboldt Foundation
- DFG [SFB/TR 7, EXC 153]
- ESF/CompStar
- RZG Garching
- NSF [PHY-1063240]
- Seventh European Community Framework Programme [IEF 331873]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1063240] Funding Source: National Science Foundation
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We perform hydrodynamical simulations of neutron-star mergers for a large sample of temperature-dependent nuclear equations of state and determine the threshold mass above which the merger remnant promptly collapses to form a black hole. We find that, depending on the equation of state, the threshold mass is larger than the maximum mass of a nonrotating star in isolation by between 30 and 70 percent. Our simulations also show that the ratio between the threshold mass and maximum mass is tightly correlated with the compactness of the nonrotating maximum-mass configuration. We speculate on how this relation can be used to derive constraints on neutron-star properties from future observations.
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