Systematic biases in parameter estimation on LISA binaries. II. The effect of excluding higher harmonics for spin-aligned, high-mass binaries
Johns Hopkins University（约翰斯·霍普金斯大学）；SISSA（的里雅斯特国际高等研究学校）；INFN Sezione di Trieste（意大利国家核物理研究所的里雅斯特分部）；Université de Toulouse（图卢兹大学）；University of Texas at Austin（德克萨斯大学奥斯汀分校）；University of Illinois Urbana-Champaign（伊利诺伊大学厄巴纳-香槟分校）
Sophia Yi, Francesco Iacovelli, Emanuele Berti, Rohit S. Chandramouli, Sylvain Marsat, Digvijay Wadekar, Nicolás Yunes
备注：
22 pages, 15 figures, 1 table; revised to match published version
The Laser Interferometer Space Antenna (LISA) will observe massive black hole binaries (MBHBs) with astoundingly high signal-to-noise ratio, leaving parameter estimation with these signals susceptible to seemingly small waveform errors. Of particular concern for MBHBs are errors due to neglected higher-order modes. We extend Yi et al. [arXiv:2502.12237] to examine errors due to neglected higher-order modes for MBHBs with nonzero (aligned) progenitor spins and total mass up to $10^8\,M_\odot$. For these very massive systems, there can be regions of parameter space in which the $(\ell, |m|)=(2,\,2)$ modes are no longer dominant with respect to higher-order ones. We find that the extent of systematic bias can change significantly when varying the progenitor spins of the binary. We also find that for the heaviest, and therefore shortest, MBHB signals, slight systematic errors can cause severe misinference of the sky localization parameters. We propose an improved likelihood optimization scheme with respect to previous work as a way to predict these effects in a computationally efficient manner.
Systematic bias in LISA ringdown analysis due to waveform inaccuracy
SISSA（国际高等研究学院）；INFN Sezione di Trieste（意大利国家核物理研究所的里雅斯特分部）；IFPU - Institute for Fundamental Physics of the Universe（宇宙基础物理研究所）；CENTRA, Departamento de Física, Instituto Superior Técnico – IST, Universidade de Lisboa – UL（里斯本大学高级理工学院物理与天体物理中心）
Multimessenger prospects of quasi-periodic eruptions
Institute of Theoretical Physics, Faculty of Mathematics and Physics（数学物理学院理论物理研究所）；Dipartimento di Fisica “A. Pontremoli”, Università degli Studi di Milano（米兰大学A. Pontremoli物理系）；Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca（米兰比可卡大学G. Occhialini物理系）
Eccentric Stellar-mass Binary Black Holes: Population, Detectability, and Waveform Analysis in the LISA and LIGO Era
UCLA（加州大学洛杉矶分校）；University of California, San Diego（加州大学圣地亚哥分校）；NASA Marshall Space Flight Center（美国国家航空航天局马歇尔太空飞行中心）；Rudolf Peierls Centre for Theoretical Physics（鲁道夫·皮尔斯理论物理中心）
Systematic biases due to waveform mismodeling in parametrized post-Einsteinian tests of general relativity: The impact of neglecting spin precession and higher modes
Implications of the LISA stochastic signal from eccentric stellar mass black hole binaries in vacuum
Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台暗物质与空间天文重点实验室）；School of Astronomy and Space Sciences, University of Science and Technology of China（中国科学技术大学天文与空间科学学院）；SISSA（的里雅斯特国际高等研究学院）；INFN Sezione di Trieste（意大利国家核物理研究所的里雅斯特分部）；IFPU - Institute for Fundamental Physics of the Universe（宇宙基础物理研究所）；Max Planck Institute for Gravitational Physics (Albert Einstein Institute)（马克斯·普朗克引力物理研究所（爱因斯坦研究所））；Dipartimento di Fisica “G. Occhialini”, Università degli Studi di Milano-Bicocca（米兰比可卡大学 G. Occhialini 物理系）；INFN, Sezione di Milano-Bicocca（意大利国家核物理研究所米兰比可卡分部）；Institute for Gravitational Wave Astronomy & School of Physics and Astronomy, University of Birmingham（伯明翰大学引力波天文学研究所及物理与天文学学院）
研究探讨了恒星级质量黑洞双星早期 inspiral 中的非圆轨道对随机引力波背景的影响，提出改进的 SGWB 模型并分析其对 LISA 检测的启示。
The Fast and the Frame-Dragging: Efficient waveforms for asymmetric-mass eccentric equatorial inspirals into rapidly-spinning black holes
University of Birmingham（伯明翰大学）；University of Glasgow（格拉斯哥大学）；European Space Agency (ESA)（欧洲航天局（ESA））；University of Southampton（南安普顿大学）；Université de Toulouse（图卢兹大学）；CNRS（法国国家科学研究中心）；NASA Marshall Space Flight Center（美国宇航局马歇尔太空飞行中心）；Max Planck Institute for Gravitational Physics (Albert Einstein Institute)（马克斯·普朗克引力物理研究所（爱因斯坦研究所））；National University of Singapore（新加坡国立大学）
本文提出了一种高效方法，用于生成非对称质量偏心赤道 inspirals 进入快速旋转黑洞的波形，支持偏心率 e < 0.9 和半焦距参数 p < 200，生成长时程 IMRI 波形，且在 100 毫秒内完成，具有 10^-5 的匹配度。
The significance of first post-adiabatic contributions for scalar charge measurements with intermediate and extreme mass ratio inspirals
University College Dublin（都柏林大学学院）；University of Glasgow（格拉斯哥大学）；Gran Sasso Science Institute (GSSI)（格兰萨索科学研究所）；INFN, Laboratori Nazionali del Gran Sasso（意大利国家核物理研究所，格兰萨索国家实验室）；University of Nottingham（诺丁汉大学）
High-Precision Ground Characterization of Test-Mass Magnetic Properties for the Taiji Gravitational Wave Mission via a Physics-Informed Neural Framework
National Space Science Center, Chinese Academy of Sciences（中国科学院国家空间科学中心）；Center for Gravitational Wave Experiment, National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences（中国科学院力学研究所微重力国家实验室引力波实验中心）；University of Chinese Academy of Sciences（中国科学院大学）；Lanzhou Center of Theoretical Physics, Lanzhou University（兰州大学理论物理中心）；Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences（中国科学院长春光学精密机械与物理研究所）；Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province（浙江省引力波精密测量重点实验室）
