NANOGrav 12.5 年数据集：引力波记忆搜寻
广义相对论与量子宇宙学
2023-07-27 v1 天体物理仪器与方法
摘要
我们呈现了在 NANOGrav 12.5 年数据集中进行引力波（GW）记忆贝叶斯搜寻的结果。我们在该数据集中未发现任何令人信服的引力波记忆信号证据（贝叶斯因子 = 2.8）。据此，我们进一步给出了 GW 记忆事件应变振幅关于天区位置与事件历元的上限。这些上限使用一个信号模型计算，该模型假设除 GW 记忆信号外还存在一个共同的、空间不相关红噪声。作为天区位置函数的应变中位数上限约为 。我们还发现，围绕 PSR J06130200 的天区位置相关上限存在一些差异，这表明该脉冲星具有某种可与 GW 记忆混淆的过剩噪声。最后，作为暴历元函数的上限在较晚历元持续改善，此改善归因于脉冲星计时阵列的持续扩展。
引用
@article{arxiv.2307.13797,
title = {The NANOGrav 12.5-year Data Set: Search for Gravitational Wave Memory},
author = {Gabriella Agazie and Zaven Arzoumanian and Paul T. Baker and Bence Bécsy and Laura Blecha and Harsha Blumer and Adam Brazier and Paul R. Brook and Sarah Burke-Spolaor and Rand Burnette and Robin Case and J. Andrew Casey-Clyde and Maria Charisi and Shami Chatterjee and Tyler Cohen and James M. Cordes and Neil J. Cornish and Fronefield Crawford and H. Thankful Cromartie and Megan E. DeCesar and Dallas DeGan and Paul B. Demorest and Timothy Dolch and Brendan Drachler and Justin A. Ellis and Robert D. Ferdman and Elizabeth C. Ferrara and William Fiore and Emmanuel Fonseca and Gabriel E. Freedman and Nate Garver-Daniels and Peter A. Gentile and Joseph Glaser and Deborah C. Good and Kayhan Gültekin and Jeffrey S. Hazboun and Ross J. Jennings and Aaron D. Johnson and Megan L. Jones and Andrew R. Kaiser and David L. Kaplan and Luke Zoltan Kelley and Joey S. Key and Nima Laal and Michael T. Lam and William G. Lamb and T. Joseph W. Lazio and Natalia Lewandowska and Tingting Liu and Duncan R. Lorimer and Jing Luo and Ryan S. Lynch and Chung-Pei Ma and Dustin R. Madison and Alexander McEwen and James W. McKee and Maura A. McLaughlin and Patrick M. Meyers and Chiara M. F. Mingarelli and Andrea Mitridate and Cherry Ng and David J. Nice and Stella Koch Ocker and Ken D. Olum and Timothy T. Pennucci and Nihan S. Pol and Scott M. Ransom and Paul S. Ray and Joseph D. Romano and Shashwat C. Sardesai and Kai Schmitz and Xavier Siemens and Joseph Simon and Magdalena S. Siwek and Sophia V. Sosa Fiscella and Renée Spiewak and Ingrid H. Stairs and Daniel R. Stinebring and Kevin Stovall and Jerry P. Sun and Joseph K. Swiggum and Jacob Taylor and Stephen R. Taylor and Jacob E. Turner and Caner Unal and Michele Vallisneri and Sarah J. Vigeland and Haley M. Wahl and Caitlin A. Witt and Olivia Young},
journal= {arXiv preprint arXiv:2307.13797},
year = {2023}
}
备注
29 pages, 5 figures