论文标题
首先限制了NS 1987a重力波排放的上限，SNR 1987a
First Constraining Upper Limits on Gravitational Wave Emission from NS 1987A in SNR 1987A
论文作者
论文摘要
我们报告了NS 1987a的连续引力波（GWS）的搜索，该恒星是SN 1987a出生的中子星。该搜索涵盖了75-275 Hz的频带，首次包括各种旋转参数，并且从第二个高级LIGO观察运行中相干地集成了12.8天的数据以下的数据以下125 Hz和8.7天的数据。我们发现没有天体物理信号。我们将GW发射的上限设置为紧密，就像$ 2 \ times10^{ - 25} $的内在应变，以90 \％的信心。大型旋转参数空间使此搜索是NS 1987a连续GWS的第一个天体一致的搜索。我们的上限是第一个基于中子星的年龄击败旋转极限的一致限制，因此是第一个在NS 1987a上对新约束施加新约束的GW观察结果。
We report on a search for continuous gravitational waves (GWs) from NS 1987A, the neutron star born in SN 1987A. The search covered a frequency band of 75-275 Hz, included a wide range of spin-down parameters for the first time, and coherently integrated 12.8 days of data below 125 Hz and 8.7 days of data above 125 Hz from the second Advanced LIGO observing run. We found no astrophysical signal. We set upper limits on GW emission as tight as an intrinsic strain of $2\times10^{-25}$ at 90\% confidence. The large spin-down parameter space makes this search the first astrophysically consistent one for continuous GWs from NS 1987A. Our upper limits are the first consistent ones to beat an analog of the spin-down limit based on the age of the neutron star, and hence are the first GW observations to put new constraints on NS 1987A.
