Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering
Cross-correlation of the astrophysical gravitational-wave background with galaxy clustering
复制标题
天体物理引力波背景与星系团的互相关
DOI：
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复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
V. Vardanyan
中科院分区：
文献类型：
--
作者：
G. Cañas;O. Contigiani;V. Vardanyan
我们研究了星系分布与预测的天体物理起源引力波背景之间的相关性。我们发现这个背景的大角尺度各向异性是由附近的非线性结构主导的，这取决于众所周知的难以在小尺度上建模的星系功率谱。相反，我们报告说，该信号与星系目录的相互关系仅依赖于线性尺度，可以用来约束引力波背景的平均贡献作为时间的函数。利用基于简化模型的模拟数据，我们探讨了星系偏差、角分辨率和物质丰度对这些约束的影响。我们的研究结果表明，当与星系调查相结合时，引力波背景可以成为引力波合并物理学和宇宙学的强大探测器。
We investigate the correlation between the distribution of galaxies and the predicted gravitational-wave background of astrophysical origin. We show that the large angular scale anisotropies of this background are dominated by nearby non-linear structure, which depends on the notoriously hard to model galaxy power spectrum at small scales. In contrast, we report that the cross-correlation of this signal with galaxy catalogues depends only on linear scales and can be used to constrain the average contribution to the gravitational-wave background as a function of time. Using mock data based on a simplified model, we explore the effects of galaxy bias, angular resolution and the matter abundance on these constraints. Our results suggest that, when combined with galaxy surveys, the gravitational-wave background can be a powerful probe for both gravitational-wave merger physics and cosmology.
DOI：
10.3847/1538-4357/aabd3b
发表时间：
2018-01
期刊：
The Astrophysical Journal
影响因子：
--
作者：
Z. Arzoumanian;P. Baker;A. Brazier;S. Burke-Spolaor;S. Chamberlin;S. Chatterjee;B. Christy;J. Cordes;N. Cornish;F. Crawford;H. Cromartie;K. Crowter;M. DeCesar;P. Demorest;T. Dolch;J. Ellis;R. Ferdman;E. Ferrara;W. Folkner;E. Fonseca;N. Garver-Daniels;P. Gentile;R. Haas;J. Hazboun;E. Huerta;K. Islo;Glenn Jones;Megan L. Jones;D. Kaplan;V. Kaspi;M. Lam;T. Lazio;L. Levin;A. Lommen;D. Lorimer;J. Luo;R. Lynch;D. Madison;M. Mclaughlin;S. McWilliams;C. Mingarelli;C. Ng;D. Nice;R. Park;T. Pennucci;N. Pol;S. Ransom;P. Ray;Alexander Rasskazov;X. Siemens;J. Simon;R. Spiewak;I. Stairs;D. Stinebring;K. Stovall;J. Swiggum;S. Taylor;M. Vallisneri;R. V. Haasteren;S. Vigeland;Weiwei Zhu
通讯作者：
Z. Arzoumanian;P. Baker;A. Brazier;S. Burke-Spolaor;S. Chamberlin;S. Chatterjee;B. Christy;J. Cordes;N. Cornish;F. Crawford;H. Cromartie;K. Crowter;M. DeCesar;P. Demorest;T. Dolch;J. Ellis;R. Ferdman;E. Ferrara;W. Folkner;E. Fonseca;N. Garver-Daniels;P. Gentile;R. Haas;J. Hazboun;E. Huerta;K. Islo;Glenn Jones;Megan L. Jones;D. Kaplan;V. Kaspi;M. Lam;T. Lazio;L. Levin;A. Lommen;D. Lorimer;J. Luo;R. Lynch;D. Madison;M. Mclaughlin;S. McWilliams;C. Mingarelli;C. Ng;D. Nice;R. Park;T. Pennucci;N. Pol;S. Ransom;P. Ray;Alexander Rasskazov;X. Siemens;J. Simon;R. Spiewak;I. Stairs;D. Stinebring;K. Stovall;J. Swiggum;S. Taylor;M. Vallisneri;R. V. Haasteren;S. Vigeland;Weiwei Zhu
影响因子：
3.5
作者：
Amaro-Seoane, Pau;Aoudia, Sofiane;Ward, Henry
通讯作者：
Ward, Henry
影响因子：
8.6
作者：
Abbott, B. P.;Abbott, R.;Zweizig, J.
通讯作者：
Zweizig, J.