Recent observations of FRB 20190520B have revealed rapid fluctuation of its Dispersion Measure within apparently fixed bounds, as well as a reversal of its Rotation Measure. The fluctuations of Dispersion Measure are uncorrelated with the intervals between bursts, setting upper bounds $\sim 10\,$s on any characteristic time scale of the dispersing region; it must be very compact. Measurements of the full dependence of the dispersive time delay on frequency may determine the actual electron density and the size of this region. It is possible to set a lower bound on the mass of the FRB source from constraints on the size of the dispersing region and its time scale of variation. Comparison of the variations of DM and RM leads to an estimate of the magnetic field $\sim 500\,μ$G.
LOFAR constraints on the repetition & environments of CHIME FRBs
ASTRON, Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）；Anton Pannekoek Institute for Astronomy, University of Amsterdam（阿姆斯特丹大学安东·潘内科克天体物理研究所）；Max Planck Institute for Radio Astronomy, University of Bonn（波恩大学马克斯·普朗克射电天文研究所）；Trottier Space Institute, McGill University（麦吉尔大学特罗蒂尔太空研究所）；Department of Physics, McGill University（麦吉尔大学物理系）；Laboratoire d’Astrophysique de Marseille, Aix-Marseille University, CNRS, CNES（马赛大学CNRS/CNES天体物理学实验室）
A HyperFlash and ÉCLAT view of the local environment and energetics of the repeating FRB 20240619D
Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）；Anton Pannekoek Institute for Astronomy, University of Amsterdam（阿姆斯特丹大学安东·潘内克天文研究所）；The University of Oxford（牛津大学）；Trottier Space Institute, McGill University（麦吉尔大学特罗蒂尔空间研究所）；Department of Physics, McGill University（麦吉尔大学物理系）；Cahill Center for Astronomy and Astrophysics, California Institute of Technology（加州理工学院卡希尔天体物理学中心）；The Observatories of the Carnegie Institution for Science（卡内基科学学会天文台）；MIT Kavli Institute for Astrophysic（麻省理工学院卡弗里天体物理研究所）
AU or pc? Inferring the distance of magnetized plasma near FRBs from propagation diagnostics
National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台）；Department of Astronomy, Tsinghua University（清华大学天文系）；School of Astronomy and Space Science, Nanjing University（南京大学天文与空间科学学院）；Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education（教育部现代天文与天体物理实验室（南京大学））；Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台）
Constraints on the Physical Association between ICECAT1 Neutrinos and Fast Radio Bursts Using the Second CHIME/FRB Catalogue
The University of Tokyo（东京大学）；National Astronomical Observatory of Japan（日本国立天文台）；Mizusawa VLBI Observatory, National Astronomical Observatory of Japan（水泽甚长基线干涉测量观测站，日本国立天文台）；Department of Physics, National Chung Hsing University（国立中兴大学物理学系）；SOKENDAI（综合研究大学院大学）；Tohoku University（东北大学）；Frontier Research Institute for Interdisciplinary Sciences, Tohoku University（东北大学跨学科前沿研究院）；Astronomical Institute, Graduate School of Science, Tohoku University（东北大学理学研究科天文学研究所）
Unveiling the Local Environment of FRB 20220912A: Sub-arcsecond $4-26$ GHz Radio Continuum Mapping
National Centre for Radio Astrophysics, Tata Institute of Fundamental Research（塔塔基础研究所射电天体物理国家中心）；Indian Institute of Technology Kanpur（坎普尔印度理工学院）；McGill University（麦吉尔大学）；Northwestern University（西北大学）；University of Amsterdam（阿姆斯特丹大学）
FRB 181112 as a Rapidly-Rotating Massive Neutron Star just after a Binary Neutron Star Merger?: Implications for Future Constraints on Neutron Star Equations of State
An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102
快速射电暴（英语：Fast radio burst，缩写为FRB）是一种毫秒级的、未知物理来源的河外射电闪光。FRB 121102是唯一已知的重复FRB源，它位于一个红移z = 0.193的矮星系的恒星形成区，在空间上与一个紧凑的持久射电源重合。爆发的起源，持续源的性质，以及当地环境的属性仍然存在争议。在这里，我们展示了在源坐标系中，在极高且可变的法拉第旋转测量下，除了窄的（< 30 μ s）时间结构外，在相隔7个月的历元上，在RM_src = +1.46 x 10^5 rad m^-2和+1.33 x 10^5 rad m^-2时，显示出~100%线偏振发射的爆发。FRB 121102的大的和可变的旋转测量表明，它是在一个极端的和动态的磁离子环境，而短的爆发持续时间主张中子星的起源。到目前为止，只有在大质量黑洞（M_BH > 10^4 MSun）附近才能观测到如此大的自转量。事实上，持久射电源的性质与低光度、吸积的大质量黑洞的性质是相容的。因此，爆发可能来自这样环境中的中子星。然而，观察到的特性也可以用其他模型来解释，例如围绕着年轻中子星的高磁化风星云或超新星遗迹。
A milliarcsecond localization associates FRB 20190417A with a compact persistent radio source and an extreme magneto-ionic environment
Anton Pannekoek Institute for Astronomy, University of Amsterdam（阿姆斯特丹大学安东·潘内库克天文学研究所）；SKA Observatory (SKAO)（平方公里阵列射电望远镜天文台）；University of Toronto（多伦多大学）；McGill University（麦吉尔大学）；ASTRON, Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）；Chalmers University of Technology（查尔姆斯理工大学）；Joint Institute for VLBI ERIC（甚长基线干涉测量欧洲研究基础设施合作组织）；Stanford University（斯坦福大学）；University of Manchester（曼彻斯特大学）；University of Bristol（布里斯托大学）；Ventspils University of Applied Sciences（文茨皮尔斯应用科学大学）；Cornell University（康奈尔大学）；Nicolaus Copernicus University（尼古拉·哥白尼大学）；University of California, Santa Cruz（加州大学圣克鲁兹分校）；University of California, Berkeley（加州大学伯克利分校）；Massachusetts Institute of Technology（麻省理工学院）；Aix-Marseille Univ.（艾克斯-马赛大学）；York University（约克大学）；California Institute of Technology（加州理工学院）
FRB20250613A: a remarkable repeating FRB with apparent millisecond-timescale scattering variations
Swinburne University of Technology（斯威本科技大学）；Northwestern University（西北大学）；Curtin University（科廷大学）；The University of Sydney（悉尼大学）；University of Edinburgh（爱丁堡大学）
A steadily declining dispersion measure for the repeating fast radio burst FRB 20220529A: Evidence for an FRB engine embedded in an expanding supernova remnant
McGill University（麦吉尔大学）；University of Toronto（多伦多大学）；Northwestern University（西北大学）；Massachusetts Institute of Technology（麻省理工学院）
A Search for Rotation Measure Flare Candidates in Repeating Fast Radio Bursts
Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台）；State Key Laboratory of Radio Astronomy and Technology, Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台射电天文与技术重点实验室）
Constraining the Supernova Remnant Environment of FRB 190520B with Dispersion Measure and Scattering Timescale
Tsung-Dao Lee Institute, Shanghai Jiao Tong University（上海交大李政道研究所）；School of Astronomy and Space Science, Nanjing University（南京大学天文与空间科学学院）；Université Paris Cité, CNRS, AstroParticule et Cosmologie（巴黎西岱大学）；Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education（教育部现代天体学与天文学重点实验室（南京大学））；Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台）
