标题： 使用合并黑洞双星限制引力子的质量 显示英文标题

标题： Constraining the mass of the graviton using coalescing black-hole binaries

摘要： 我们研究从合并双黑洞的引力波（GW）观测中，能够多好地约束引力子的质量。 尽管以前的研究使用了仅描述信号旋近部分的后牛顿（PN）模板，但分析和数值相对论的最新进展已经提供了能够一致描述旋近-合并-余震（IMR）信号的分析波形模板。 我们表明，使用IMR模板搜索双黑洞将比使用PN模板更准确地约束引力子的质量（大约一个数量级）。 来自引力波观测站的最佳预期限制（Adv. LIGO为lambda_g > 7.8 x 10^13 km，Einstein Telescope为lambda_g > 7.1 x 10^14 km，LISA为lambda_g > 5.9 x 10^17 km）比目前可用的模型无关限制（来自太阳系测试的lambda_g > 2.8 x 10^12 km）要好几个数量级。 最重要的是，引力波观测将提供来自引力高度动态、强场区域的首次约束。 显示英文摘要

摘要： We study how well the mass of the graviton can be constrained from gravitational-wave (GW) observations of coalescing binary black holes. Whereas the previous investigations employed post-Newtonian (PN) templates describing only the inspiral part of the signal, the recent progress in analytical and numerical relativity has provided analytical waveform templates coherently describing the inspiral-merger-ringdown (IMR) signals. We show that a search for binary black holes employing IMR templates will be able to constrain the mass of the graviton much more accurately (about an order of magnitude) than a search employing PN templates. The best expected bound from GW observatories (lambda_g > 7.8 x 10^13 km from Adv. LIGO, lambda_g > 7.1 x 10^14 km from Einstein Telescope, and lambda_g > 5.9 x 10^17 km from LISA) are several orders-of-magnitude better than the best available model-independent bound (lambda_g > 2.8 x 10^12 km, from Solar system tests). Most importantly, GW observations will provide the first constraints from the highly dynamical, strong-field regime of gravity.