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相关论文: Magnetic loading of magnetars' flares

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Magnetars younger than one century are expected to be hyper active. Besides winds powered by rotation they generate frequent magnetic flares, which launch powerful blast waves into the wind. These internal shocks act as masers producing…

高能天体物理现象 · 物理学 2020-07-01 Andrei M. Beloborodov

One scenario for the generation of fast radio bursts (FRBs) is magnetic reconnection in a current sheet of the magnetar wind. Compressed by a strong magnetic pulse induced by a magnetar flare, the current sheet fragments into a self-similar…

高能天体物理现象 · 物理学 2022-06-22 J. F. Mahlmann , A. A. Philippov , A. Levinson , A. Spitkovsky , H. Hakobyan

Magnetar flares are highly energetic and rare events in which intense X and {\gamma}-ray emission is released from strongly magnetised neutron stars. The events are also accompanied by mass ejection from the neutron star. Fast radio bursts…

高能天体物理现象 · 物理学 2026-03-18 Konstantinos N. Gourgouliatos

Many explosive astrophysical events, like magnetars' bursts and flares, are magnetically driven. We consider dynamics of such magnetic explosions - relativistic expansion of highly magnetized and highly magnetically over-pressurized clouds.…

高能天体物理现象 · 物理学 2022-08-17 Maxim V. Barkov , Praveen Sharma , Konstantinos N. Gourgouliatos , Maxim Lyutikov

Fast radio bursts (FRBs) are bright extragalactic transients likely produced by magnetars. We study the propagation of FRBs in magnetar winds, assuming that the wind is strongly magnetized and composed of electron-positron pairs. We focus…

高能天体物理现象 · 物理学 2024-10-23 Emanuele Sobacchi , Masanori Iwamoto , Lorenzo Sironi , Tsvi Piran

Highly magnetized neutron stars are a source of extreme transients observed in different bands, like the fast radio burst (FRB) and associated hard X-ray burst from the Galactic magnetar SGR 1935+2154. The origin of such outbursts, hard…

高能天体物理现象 · 物理学 2024-05-07 J. F. Mahlmann

Presently, it is broadly assumed that fast radio bursts (FRBs) are sources of coherent emission powered by the magnetic energy release in magnetars. However, the exact emission mechanism is not known, yet. Two main frameworks exist:…

高能天体物理现象 · 物理学 2022-10-27 Popov S. B.

The emission of intense radio pulses by flaring magnetars is investigated. Small-scale current gradients can be imprinted into a strongly magnetized outflow by the same processes that source fireball radiation in the closed magnetosphere.…

高能天体物理现象 · 物理学 2022-12-14 Christopher Thompson

We examine the possibility that fast radio bursts (FRBs) are emitted inside the magnetosphere of a magnetar. On its way out, the radio wave must interact with a low-density $e^\pm$ plasma in the outer magnetosphere at radii…

高能天体物理现象 · 物理学 2021-11-24 Andrei M. Beloborodov

Long-term periodicity in the rate of flares is observed for two repeating sources of fast radio bursts (FRBs). In this paper We present a hydrodynamical modeling of a massive binary consisting of a magnetar and an early-type star. We model…

高能天体物理现象 · 物理学 2022-06-22 Maxim V. Barkov , Sergei B. Popov

We consider a magnetar flare model for fast radio bursts (FRBs). We show that millisecond burst of sufficient power can be generated by synchrotron maser emission ignited at the reverse shock propagating through the weakly magnetized…

高能天体物理现象 · 物理学 2022-03-09 Dmitry Khangulyan , Maxim V. Barkov , Sergey B. Popov

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

Magnetars are the most promising progenitors of Fast Radio Bursts (FRBs). Strong radio waves propagating through the magnetar wind are subject to non-linear effects, including modulation/filamentation instabilities. We derive the dispersion…

高能天体物理现象 · 物理学 2022-02-09 Emanuele Sobacchi , Yuri Lyubarsky , Andrei Beloborodov , Lorenzo Sironi

At least some fast radio bursts (FRBs) are produced by magnetars. Even though mounting observational evidence points towards a magnetospheric origin of FRB emission, the question of the location for FRB generation continues to be debated.…

高能天体物理现象 · 物理学 2022-10-06 Yuanhong Qu , Pawan Kumar , Bing Zhang

The nearly 100% linear polarization has been reported for a few fast radio bursts. This finding places severe limits on the emission mechanism. I argue that the totally polarized radiation could be generated in the course of relativistic…

高能天体物理现象 · 物理学 2020-07-08 Yuri Lyubarsky

(Abridged) We propose that giant flares on Soft Gamma-Ray Repeaters produce relativistic, strongly magnetized, weakly baryon loaded magnetic clouds, somewhat analogous to solar coronal mass ejection (CME) events. Flares are driven by…

天体物理学 · 物理学 2009-11-13 Maxim Lyutikov

We briefly review main observational properties of fast radio bursts (FRBs) and discuss two most popular hypothesis for the explanation of these enigmatic intense millisecond radio flashes. FRBs most probably originate on extragalactic…

高能天体物理现象 · 物理学 2018-08-08 S. B. Popov , K. A. Postnov , M. S. Pshirkov

Sudden relaxation of the magnetic field in the core of a magnetar produces mechanical energy primarily in the form of shear waves which propagate to the surface and enter the magnetosphere as relativistic Alfv\'en waves. Due to a strong…

太阳与恒星天体物理 · 物理学 2015-06-18 Bennett Link

Fast radio bursts (FRBs) are millisecond radio pulses with extremely high bright temperature. Their physical origin is still a mystery. The discovery of FRB 20020428 supports the idea that at least a portion of FRBs is generated by…

高能天体物理现象 · 物理学 2025-07-23 H. T. Lan , S. X. Yi , F. Y. Wang
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