中文
相关论文

相关论文: Radius-to-frequency mapping and FRB frequency drif…

200 篇论文

The extreme, time-variable Faraday rotation observed in the repeating fast radio burst (FRB) 121102 and its associated persistent synchrotron source demonstrates that some FRBs originate in dense, dynamic and possibly relativistic…

高能天体物理现象 · 物理学 2019-03-27 H. K. Vedantham , V. Ravi

During the last few years there were discovered and deeply examined several transient neutron stars (Rotating Radio Transients). It is already well accepted that these objects are rotating neutron stars. But their extraordinary features…

天体物理学 · 物理学 2007-09-14 D. Lomiashvili , G. Machabeli , I. Malov

Fast Radio Bursts (FRBs) are energetic millisecond radio bursts at cosmological distances, whose underlying engine is not identified. Among a sub-population that emit repeated radio bursts, a handful were associated with a persistent radio…

高能天体物理现象 · 物理学 2025-01-27 Xian Zhang , Wenfei Yu , Zhen Yan , Yi Xing , Bing Zhang

It was recently discovered that the time correlations of repeating fast radio bursts (FRBs) are similar to earthquake aftershocks. Motivated by the association between FRBs and magnetars, here we report correlation function analyses in the…

高能天体物理现象 · 物理学 2024-04-24 Yuya Tsuzuki , Tomonori Totani , Chin-Ping Hu , Teruaki Enoto

A fireball of radiation plasma created near the surface of a neutron star (NS) expands under its own pressure along magnetic field lines, and produces photon emission and relativistic matter outflow. We comprehensively classify the…

高能天体物理现象 · 物理学 2023-01-18 Tomoki Wada , Kunihito Ioka

It is an open question whether and how gravitational wave events involving neutron stars can be preceded by electromagnetic counterparts. This work shows that the collision of two neutron stars with magnetic fields well below magnetar-level…

高能天体物理现象 · 物理学 2023-06-21 Elias R. Most , Alexander A. Philippov

Fast radio bursts (FRBs), thought to originate from magnetars, exhibit diverse polarization properties that constrain their emission physics and local magneto-ionic environments. The polarization position angle (PPA) is particularly…

There are several phenomenological similarities between Soft Gamma Repeaters and Fast Radio Bursts, including duty factors, time scales and probable repetition. The sudden release of magnetic energy in a neutron star magnetosphere, as in…

高能天体物理现象 · 物理学 2016-09-23 J. I. Katz

We show that the 216.8$\pm$0.1 ms periodicity reported for the fast radio burst (FRB) 20191221A is very constraining for burst models. The high accuracy of burst periodicity (better than one part in 10$^3$), and the 2\% duty cycle (ratio of…

高能天体物理现象 · 物理学 2023-01-18 Paz Beniamini , Pawan Kumar

Magnetars are neutron stars with extremely high magnetic fields that exhibit various X-ray phenomena such as sporadic sub-second bursts, long-term persistent flux enhancements, and variable rates of rotation period change. In 2020, a fast…

The extremely high brightness temperatures of pulsars and fast radio bursts (FRBs) require their radiation mechanisms to be coherent. Coherent curvature radiation by bunches has been long discussed as the mechanism for radio pulsars and…

高能天体物理现象 · 物理学 2018-11-28 Yuan-Pei Yang , Bing Zhang

Fast radio bursts (FRBs) are millisecond transient astrophysical phenomena and bright at radio frequencies. The emission mechanism, however, remains unsolved yet. One scenario is a coherent emission associated with the magnetar flares and…

高能天体物理现象 · 物理学 2024-01-22 Masanori Iwamoto , Yosuke Matsumoto , Takanobu Amano , Shuichi Matsukiyo , Masahiro Hoshino

Fast radio bursts (FRBs), millisecond-duration radio transient events, possess the potential to serve as excellent cosmological probes. The FRB redshift distribution contains information about the FRB sources, providing key constraints on…

宇宙学与河外天体物理 · 物理学 2025-03-25 Hui Peng , Yu Yu

Diverse formation channels have been proposed to explain the emergence of fast radio bursts (FRBs), yet their origin remains elusive. With improved localization precision, roughly 90 FRBs are now associated with host galaxies. SED fitting…

高能天体物理现象 · 物理学 2025-04-04 Nick Loudas , Dongzi Li , Michael A. Strauss , Joel Leja

A general model of magnetically controlled accretion onto T Tauri stars is presented. In this model the magnetic field is oriented arbitrarily in relation to the star's rotation axis. The resultant interplay between the magnetic field and…

天体物理学 · 物理学 2015-06-24 K. W. Smith , I. A. Bonnell , G. F. Lewis

The origin and phenomenology of the Fast Radio Burst (FRB) remains unknown despite more than a decade of efforts. Though several models have been proposed to explain the observed data, none is able to explain alone the variety of events so…

高能天体物理现象 · 物理学 2021-03-26 Luciano Nicastro , Cristiano Guidorzi , Eliana Palazzi , Luca Zampieri , Massimo Turatto , Angela Gardini

Fast radio bursts (FRBs) represent one of the most exciting astrophysical discoveries of the recent past. The study of their low-frequency emission, which was only effectively picked up about ten years after their discovery, has helped…

高能天体物理现象 · 物理学 2022-03-10 Maura Pilia

We present a sample of nine Fast Radio Bursts (FRBs) from which we derive magnetic field strengths of the host galaxies represented by normal, $z<0.5$ star-forming galaxies with stellar masses $M_* \approx 10^8 -10^{10.5} M_\odot$. We find…

Under the assumption that fast radio bursts (FRBs) are from coherent curvature emission powered by the dissipation of magnetic energy in the magnetosphere of neutron stars, we predict a maximum isotropic equivalent luminosity of (~2x10^{47}…

高能天体物理现象 · 物理学 2018-11-07 Wenbin Lu , Pawan Kumar

Fast radio bursts (FRBs) are mysterious millisecond-duration radio transients of extragalactic origin. Some of them repeat, while others apparently do not. Investigations of periodic activity in repeating FRB have been conducted to probe…