Center for Exploration of Energy and Matter and Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
Institute for Nuclear Theory and Department of Physics, University of Washington, Seattle, Washington 98195, USA.
Phys Rev Lett. 2019 Feb 22;122(7):071102. doi: 10.1103/PhysRevLett.122.071102.
Dark matter could be composed of compact dark objects (CDOs). We find that the oscillation of CDOs inside neutron stars can be a detectable source of gravitational waves (GWs). The GW strain amplitude depends on the mass of the CDO, and its frequency is typically in the range 3-5 kHz as determined by the central density of the star. In the best cases, LIGO may be sensitive to CDO masses greater than or of order 10^{-8} M_{⊙}.
暗物质可能由致密暗物质天体（CDO）组成。我们发现 CDO 在中子星内部的振荡可能是引力波（GW）的一个可探测源。GW 应变幅度取决于 CDO 的质量，其频率通常在 3-5 kHz 范围内，由恒星的中心密度决定。在最佳情况下，LIGO 可能对大于或等于 10^{-8}M_{⊙}量级的 CDO 质量敏感。
