High time resolution and polarisation properties of ASKAP-localised fast radio bursts
Cherie K. Day, A. T. Deller, R. M. Shannon, Hao Qiu, Keith W. Bannister, S. Bhandari, Ron Ekers, Chris Flynn, C. W. James, J. -P. Macquart, Chris J. Phillips, E… 展开作者
Cherie K. Day, A. T. Deller, R. M. Shannon, Hao Qiu, Keith W. Bannister, S. Bhandari, Ron Ekers, Chris Flynn, C. W. James, J. -P. Macquart, Chris J. Phillips, Elizabeth K. Mahony, J. Xavier Prochaska
Combining high time and frequency resolution full-polarisation spectra of Fast Radio Bursts (FRBs) with knowledge of their host galaxy properties provides an opportunity to study both the emission mechanism generating them and the impact of their propagation through their local environment, host galaxy, and the intergalactic medium. The Australian Square Kilometre Array Pathfinder (ASKAP) telescope has provided the first ensemble of bursts with this information. In this paper, we present the high time and spectral resolution, full polarisation observations of five localised FRBs to complement the results published for the previously studied ASKAP FRB~181112. We find that every FRB is highly polarised, with polarisation fractions ranging from 80 -- 100\%, and that they are generally dominated by linear polarisation. While some FRBs in our sample exhibit properties associated with an emerging archetype (i.e., repeating or apparently non-repeating), others exhibit characteristic features of both, implying the existence of a continuum of FRB properties. When examined at high time resolution, we find that all FRBs in our sample have evidence for multiple sub-components and for scattering at a level greater than expected from the Milky Way. We find no correlation between the diverse range of FRB properties (e.g., scattering time, intrinsic width, and rotation measure) and any global property of their host galaxy. The most heavily scattered bursts reside in the outskirts of their host galaxies, suggesting that the source-local environment rather than the host interstellar medium is likely the dominant origin of the scattering in our sample.
CRAFT HTR2: Polarimetry of 64 non-repeating fast radio bursts from the updated CRAFT catalogue
Swinburne University of Technology（斯威本科技大学）；University of Edinburgh（爱丁堡大学）；Curtin University（科廷大学）；University of Cape Town（开普敦大学）；ASTRON, Netherlands Institute for Radio Astronomy（荷兰射电天文研究所）
Evidence for the binary nature of the long-period radio transient ASKAP/DART J1832-0911
International Centre for Radio Astronomy Research, Curtin University（国际射电天文研究中心，科廷大学）；Australia Telescope National Facility, CSIRO（澳大利亚望远镜国家设施，联邦科学与工业研究组织）
A MeerKAT search for persistent radio sources towards twenty-five localised Fast Radio Bursts
North-West University（西北大学）；University of South Africa（南非大学）；University of Nigeria（尼日利亚大学）；National Institute for Theoretical and Computational Sciences (NITheCS)（国家理论与计算科学研究所）；South African Radio Astronomy Observatory（南非射电天文台）；Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, The University of Manchester（曼彻斯特大学物理与天文学系乔德雷克天体物理学中心）
A PINK update: Improvements to the CELEBI fast radio burst data reduction and analysis pipeline
Institute for Astronomy, University of Edinburgh（爱丁堡大学天体物理研究所）；Centre for Astrophysics and Supercomputing, Swinburne University of Technology（斯威本科技大学天文与超级计算中心）；International Centre for Radio Astronomy Research, Curtin University（科廷大学国际射电天文研究中心）；Australia Telescope National Facility, CSIRO（澳大利亚望远镜国家设施，CSIRO）；Univ Rennes, INSA Rennes, CNRS, IETR - UMR 6164（雷恩大学，雷恩国立应用科学学院，法国国家科学研究中心，IETR - UMR 6164）；Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA) and Department of Physics and Astronomy, Northwestern University（西北大学天体物理学跨学科探索与研究中心（CIERA）及物理与天文学系）
Fast Radio Bursts in the Era of the Vera C. Rubin Observatory's Legacy Survey of Space and Time
International Centre for Radio Astronomy Research, Curtin University（国际无线电天文研究中心，科廷大学）；Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS)（南里奥格兰德联邦大学物理研究所）；Australia Telescope National Facility, CSIRO Space & Astronomy（澳大利亚望远镜国家设施，CSIRO空间与天文学部）；Sydney Institute for Astronomy, School of Physics, The University of Sydney（悉尼大学物理学院悉尼天体物理研究所）；Department of Physics, University of Washington（华盛顿大学物理系）；Centre for Astrophysics and Supercomputing, Swinburne University of Technology（斯威本科技大学天体物理学与超级计算中心）；Kavli IPMU (WPI), UTIAS, The University of Tokyo（东京大学宇宙起源研究核心理论中心（ Kavli IPMU））；School of Mathematical and Physical Sciences, Macquarie University（麦考瑞大学数理科学学院）；Department of Physics, University of Oxford（牛津大学物理系）
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）
An investigation into correlations between FRB and host galaxy properties
University of Edinburgh（爱丁堡大学）；Curtin University（科廷大学）；Swinburne University of Technology（斯威本科技大学）；Northwestern University（西北大学）；Macquarie University（麦考瑞大学）；Maria Mitchell Observatory（玛丽亚·米切尔天文台）；University of California, Santa Cruz（加州大学圣克鲁兹分校）
