Deep Synoptic Array Science: First FRB and Host Galaxy Catalog
C. J. Law, K. Sharma, V. Ravi, G. Chen, M. Catha, L. Connor, J. T. Faber, G. Hallinan, C. Harnach, G. Hellbourg, R. Hobbs, D. Hodge, M. Hodges, J. W. Lamb, P. R… 展开作者
C. J. Law, K. Sharma, V. Ravi, G. Chen, M. Catha, L. Connor, J. T. Faber, G. Hallinan, C. Harnach, G. Hellbourg, R. Hobbs, D. Hodge, M. Hodges, J. W. Lamb, P. Rasmussen, M. B. Sherman, J. Shi, D. Simard, R. Squillace, S. Weinreb, D. P. Woody, N. Yadlapalli
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21 pages. Submitted to AAS Journals. Includes changes based on referee comments and improved host galaxy analysis
Fast Radio Bursts (FRBs) are a powerful and mysterious new class of transient that are luminous enough to be detected at cosmological distances. By associating FRBs to host galaxies, we can measure intrinsic and environmental properties that test FRB origin models, in addition to using them as precise probes of distant cosmic gas. The Deep Synoptic Array (DSA-110) is a radio interferometer built to maximize the rate at which it can simultaneously detect and localize FRBs. Here, we present the first sample of FRBs and host galaxies discovered by the DSA-110. This sample of 11 FRBs is the largest, most uniform sample of localized FRBs to date, as it is selected based on association to host galaxies identified in optical imaging by Pan-STARRS1. These FRBs have not been observed to repeat and their radio properties (dispersion, temporal scattering, energy) are similar to that of the known non-repeating FRB population. Most host galaxies have ongoing star formation, as has been identified before for FRB hosts. Two hosts of the new sample are massive, quiescent galaxies. The distribution of star-formation history across this host-galaxy sample shows that the delay-time distribution is wide, with a powerlaw model that spans from $\sim100$\,Myr to $\gtrsim2$\,Gyr. This requires the existence of one or more progenitor formation channels associated with old stellar populations, such as the binary evolution of compact objects.
Deep Synoptic Array science: a 50 Mpc fast radio burst constrains the mass of the Milky Way circumgalactic medium
我们提出的深层天气阵列（DSA-110）的发现和干涉定位到目前为止，非重复FRB 20220319 D。FRB起源于一个年轻的、快速形成恒星的棒旋星系IRAS 02044 $+$ 7048，它的质量只有50 Mpc。虽然NE 2001和YMW 16模型的银河系星际介质（ISM）的DM的FRB 20220319 D的贡献超过其总观测DM，我们表明，在这些模型中的不确定性容纳的爆发河外起源。我们推导出一个保守的上限DM贡献的环银河系介质（CGM）的银河系：限制是28.7 pc cm $^{-3}$和47.3 pc cm $^{-3}$，这取决于两个恒星附近的天空FRB 20220319 D是用来估计ISM DM。这些极限都意味着银河系CGM的总质量是$<10^{11}M_{\odot}$，而银河系的重子质量是给定总晕质量的宇宙学平均值的$\lesssim60\%$。当遥远的球状星团M53中的双星DM被另外考虑时，可能会有更严格但不那么保守的约束。虽然我们的约束条件是敏感的CGM中可能的各向异性和假设的形式的径向密度分布，它们不受CGM的化学和热性质的不确定性。我们的研究结果强烈支持星系形成模拟通常预测的情况，其中反馈过程从像银河系这样的星系晕中驱逐重子物质。
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）
Extreme-Value Distribution Analysis of the Second CHIME/FRB Catalog: Assessing the Rarity of the One-off FRB 20250316A
Purple Mountain Observatory, Chinese Academy of Sciences（中国科学院紫金山天文台）；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）
Probing the maximum energy of fast radio bursts using thousands of sources from the Second CHIME/FRB Catalog
McGill University（麦吉尔大学）；Trottier Space Institute, McGill University（特罗蒂尔空间研究所，麦吉尔大学）；Anton Pannekoek Institute for Astronomy, University of Amsterdam（阿姆斯特丹大学安东·潘内科克天文学研究所）；ASTRON, Netherlands Institute for Radio Astronomy（荷兰射电天文研究所 ASTRON）；School of Physics and Astronomy, Tel Aviv University（特拉维夫大学物理与天文学学院）；MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology（麻省理工学院卡弗里天体物理学与空间研究研究所）；Department of Physics, Massachusetts Institute of Technology（麻省理工学院物理系）
Semi-supervised morphological classification of fast radio bursts from the second CHIME/FRB catalogue
Dunlap Institute for Astronomy and Astrophysics, University of Toronto（多伦多大学邓普天文学与天体物理研究所）；David A. Dunlap Department for Astronomy and Astrophysics, University of Toronto（多伦多大学大卫·A·邓普天文学与天体物理系）；Department of Statistical Sciences, University of Toronto（多伦多大学统计科学系）
McGill University（麦吉尔大学）；Massachusetts Institute of Technology（麻省理工学院）；West Virginia University（西弗吉尼亚大学）；Carnegie Mellon University（卡内基梅隆大学）；National Centre for Radio Astrophysics（国家射电天体物理中心）；National Research Council of Canada（加拿大国家研究委员会）
Unveiling the spectral morphological division of fast radio bursts with CHIME/FRB Catalog 2
College of Sciences, Northeastern University（东北大学理学院）；National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台）；School of Astronomy and Space Science, University of Chinese Academy of Sciences（中国科学院大学天文与空间科学学院）；College of Physics and Electronic Information Engineering, Guilin University of Technology（桂林理工大学物理与电子工程学院）；College of Mathematics and Statistics, Liaoning University（辽宁大学数学与统计学院）
Statistical inference of fast radio burst environments using galaxy number density
National Chung Hsing University（中兴大学）；National Tsing Hua University（清华大学）；National Centre for Radio Astrophysics (NCRA–TIFR)（国家射电天文中心（NCRA-TIFR））；Tohoku University（东北大学）
本研究利用WISE x PS1星表，通过KS检验统计分析CHIME星表1中19个重复FRB与253个非重复FRB的环境，发现二者环境无显著差异，且FRB或偏好低密度星系环境，凸显大样本FRB研究的必要性。
Tracing the Host-Galaxy Environments of FRBs with a New Sample of Localized Sources Detected with the DSA-110
California Institute of Technology（加州理工学院）；Owens Valley Radio Observatory, California Institute of Technology（加州理工学院欧文斯谷射电天文台）；Observatories of the Carnegie Institution for Science（卡内基科学研究所天文台）
Evidence for Intermediate-Mass Black Holes From Microlensing Signatures in CHIME/FRB catalog 2
School of Physics and Optoelectronic Engineering, Yangtze University（长江大学物理与光电工程学院）；School of Physics and Astronomy, Beijing Normal University（北京师范大学物理学院）；Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University（北京师范大学天文与前沿科学研究院）；School of Physics and Technology, Wuhan University（武汉大学物理科学与技术学院）
Fast radio burst - persistent radio source systems I. A 1.2 GHz search and catalog definition
INAF-Istituto di Radio Astronomia (IRA)（意大利国家天体物理研究所射电天文研究所）；Centre for Radio Astronomy Techniques and Technologies (RATT), Department of Physics and Electronics, Rhodes University（罗德斯大学物理与电子学院射电天文技术与方法中心）；South African Radio Astronomy Observatory（南非射电天文观测台）；INAF-Osservatorio Astronomico di Cagliari（意大利国家天体物理研究所卡利亚里天文台）；Scuola Universitaria Superiore IUSS Pavia（帕维亚高等大学学院）；INAF–Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano（意大利国家天体物理研究所米兰空间天体物理与宇宙物理研究所）；Dipartimento di Fisica e Astronomia, Universitá di Bologna（博洛尼亚大学物理与天文学系）；Dipartimento di Fisica, Università di Trento（特伦托大学物理系）
