论文标题
通过来源的质量速度激发引力波模式
Excitation of gravitational wave modes by a center-of-mass velocity of the source
论文作者
论文摘要
大多数引力波（GW）来源相对于我们而移动。该运动通常与来源的环境密切相关，因此可以提供有关来源及其宿主形成的重要信息。最近，Ligo和处女座首次检测到GWS的亚辅助模式。我们表明，来源的质量中心的运动可能会影响这些模式，在这种模式下，效果与源速度成正比。对GW模式的影响反过来影响了GW的整体频率，从而导致相移。我们研究了这种影响对Ligo/处女座检测的影响，并表明它对于具有较高质量比和倾斜度的来源可检测到。这种效应打破了GW观测中质量和多普勒偏移之间的变性，并为即使在恒定速度方面甚至开辟了检测GW源运动的新可能性。
Most gravitational wave (GW) sources are moving relative to us. This motion is often closely related to the environment of the source and can thus provide crucial information about the formation of the source and its host. Recently, LIGO and Virgo detected for the first time the subdominant modes of GWs. We show that a motion of the center-of-mass of the source can affect these modes, where the effect is proportional to the velocity of the source. The effect on the GW modes in turn affects the overall frequency of the GW, thus leading to a phase shift. We study the impact of this effect on LIGO/Virgo detections and show that it is detectable for sources with high mass ratios and inclinations. This effect breaks the degeneracy between mass and Doppler shift in GW observations, and opens a new possibility of detecting the motion of a GW source even for constant velocities.
