论文标题
约束重力波与双脉冲星的异常耦合
Constraining the anomalous coupling of gravitational waves with double pulsar
论文作者
论文摘要
我们重新审查了二进制系统中轨道时期的衰减，这是由于重力模型在重力模型的背景下排放引力波，其中物质之间的耦合$ g_ {gw} $允许与牛顿常数$ g_n $不同。使用双脉冲星的二进制脉冲星的最精确的轨道参数，我们将比率$ g_ {gw}/g_n $限制为$ 10^{ - 4} $的级别，并通过两个数量的限制了两个级级。
We revisit the decay of the orbital period in binary systems that occurs due to the emission of gravitational waves in the context of modified gravity models where the coupling $G_{gw}$ between matter and on-shell gravitons is allowed to differ from the Newton constant $G_N$. Using the most precise orbital parameters of binary pulsars, those of the Double Pulsar, we constrain the ratio $G_{gw}/G_N$ to the level of $10^{-4}$, improving by two orders of magnitude the present bound on this quantity.
