The NANOGrav 12.5 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries-猫眼课题宝

DOI：

10.3847/2041-8213/acdbc7

发表时间：

2023-01

期刊：

The Astrophysical Journal Letters

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

Z. Arzoumanian;P. Baker;L. Blecha;H. Blumer;A. Brazier;P. Brook;S. Burke-Spolaor;B. Bécsy;J. A. Casey-Clyde;M. Charisi;S. Chatterjee;Siyuan Chen;J. Cordes;N. Cornish;F. Crawford;H. Cromartie;M. DeCesar;P. Demorest;T. Dolch;B. Drachler;J. Ellis;E. Ferrara;W. Fiore;E. Fonseca;G. Freedman;N. Garver-Daniels;P. Gentile;J. Glaser;D. Good;K. Gültekin;J. Hazboun;R. Jennings;A. Johnson;Megan L. Jones;A. Kaiser;D. Kaplan;L. Kelley;J. Key;N. Laal;M. Lam;W. Lamb;T. Joseph W. Lazio;N. Lewandowska;Tingting Liu;D. Lorimer;Jing Luo;R. Lynch;D. Madison;A. McEwen;M. Mclaughlin;C. Mingarelli;C. Ng;D. Nice;S. Ocker;K. Olum;T. Pennucci;N. Pol;S. Ransom;P. Ray;J. Romano;B. Shapiro-Albert;X. Siemens;J. Simon;M. Siwek;R. Spiewak;I. Stairs;D. Stinebring;K. Stovall;J. Swiggum;J. Sydnor;S. Taylor;J. E. Turner;M. Vallisneri;S. Vigeland;H. Wahl;G. Walsh;C. Witt;O. Young

脉冲星定时阵列合作，如北美引力波纳赫兹天文台(NANOGrav)，正在寻求探测星系合并后形成的超大质量黑洞双星发出的纳赫兹引力波。我们已经使用NANOGrav最近12.5年的数据集搜索了来自单个圆形超大质量黑洞双星的连续波。在我们的分析中，我们创建了新的方法来准确地模拟脉冲星距离的不确定性，并实施了新的技术来解释脉冲星定时阵列数据集中的常见红色噪声过程，同时搜索确定的引力波信号，包括连续波。由于我们在我们的数据中没有发现连续波的证据，我们对这些源发出的连续波的应变幅度设定了95%的上限。在我们最敏感的频率7.65nhz处，我们在最敏感的天空位置设置了h0&lt；(6.82±0.35)×10−15和h0&lt；(2.66±0.15)×10−15的天空平均极限。最后，我们对超大质量黑洞双星候选体3C66B的啁啾质量给出了&lt；(1.4 1±0.0 2)×10 9m⊙的多量子极限。

Pulsar timing array collaborations, such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), are seeking to detect nanohertz gravitational waves emitted by supermassive black hole binaries formed in the aftermath of galaxy mergers. We have searched for continuous waves from individual circular supermassive black hole binaries using NANOGrav’s recent 12.5 yr data set. We created new methods to accurately model the uncertainties on pulsar distances in our analysis, and we implemented new techniques to account for a common red-noise process in pulsar timing array data sets while searching for deterministic gravitational wave signals, including continuous waves. As we found no evidence for continuous waves in our data, we placed 95% upper limits on the strain amplitude of continuous waves emitted by these sources. At our most sensitive frequency of 7.65 nHz, we placed a sky-averaged limit of h 0 < (6.82 ± 0.35) × 10−15, and h 0 < (2.66 ± 0.15) × 10−15 in our most sensitive sky location. Finally, we placed a multimessenger limit of <(1.41±0.02)×109M⊙ on the chirp mass of the supermassive black hole binary candidate 3C 66B.

The NANOGrav 12.5 yr Data Set: Bayesian Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries

文献摘要

相似文献