Search for gravitational waves from binary inspirals in S3 and S4 LIGO data
Search for gravitational waves from binary inspirals in S3 and S4 LIGO data
复制标题
在 S3 和 S4 LIGO 数据中搜索双星螺旋的引力波
DOI：
10.1103/physrevd.77.062002
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
E. al.
中科院分区：
文献类型：
--
作者：
L. S. C. B. Abbott;E. al.
我们报告了在第三次和第四次 LIGO 科学运行期间对致密双星合并产生的引力波的探索。搜索的重点是双星演化的吸气阶段产生的引力波。在我们的分析中，我们考虑了三类致密双星系统，按质量排序：（i）质量在 0.35 M（太阳）<m1、m2<1.0 M（太阳）范围内的原初黑洞双星，（ii）质量在 1.0 M（太阳）<m1、m2<3.0 M（太阳）范围内的双中子星，以及（iii）质量在 3.0 范围内的双星黑洞 M(sun)<m1, m2<m_(max)，附加约束 m1+ m2<m_(max)，其中 m_(max) 在第三次和第四次科学运行中分别设置为 40.0 M(sun) 和 80.0 M(sun)。尽管探测器的探测距离可达数十 Mpc，但在我们分析的 1364 小时数据中没有识别出引力波信号。假设二元总体呈高斯分布，约为 0.75-0.75 M(sun)、1.4-1.4 M(sun) 和 5.0-5.0 M(sun)，我们得出原初黑洞双星 1.2 yr^(-1) 的 90% 置信度上限为 4.9 yr^(-1) L10^(-1) L10^(-1) 对于双中子星，0.5 yr^(-1) L10^(-1) 对于恒星质量双黑洞，其中 L10 是太阳蓝光光度的 10^(10) 倍。
We report on a search for gravitational waves from the coalescence of compact binaries during the third and fourth LIGO science runs. The search focused on gravitational waves generated during the inspiral phase of the binary evolution. In our analysis, we considered three categories of compact binary systems, ordered by mass: (i) primordial black hole binaries with masses in the range 0.35 M(sun)<m1, m2<1.0 M(sun), (ii) binary neutron stars with masses in the range 1.0 M(sun)<m1, m2<3.0 M(sun), and (iii) binary black holes with masses in the range 3.0 M(sun)<m1, m2<m_(max) with the additional constraint m1+ m2<m_(max), where m_(max) was set to 40.0 M(sun) and 80.0 M(sun) in the third and fourth science runs, respectively. Although the detectors could probe to distances as far as tens of Mpc, no gravitational-wave signals were identified in the 1364 hours of data we analyzed. Assuming a binary population with a Gaussian distribution around 0.75-0.75 M(sun), 1.4-1.4 M(sun), and 5.0-5.0 M(sun), we derived 90%-confidence upper limit rates of 4.9 yr^(-1) L10^(-1) for primordial black hole binaries, 1.2 yr^(-1) L10^(-1) for binary neutron stars, and 0.5 yr^(-1) L10^(-1) for stellar mass binary black holes, where L10 is 10^(10) times the blue light luminosity of the Sun.