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相关论文: Early evolution of newly born magnetars with a str…

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There is growing evidence that two classes of high-energy sources, the Soft Gamma Repeaters and the Anomalous X-ray Pulsars contain slowly spinning ``magnetars'', i.e. neutron stars whose emission is powered by the release of energy from…

天体物理学 · 物理学 2009-11-13 Luigi Stella , Simone Dall'Osso , GianLuca Israel , Alberto Vecchio

Soft Gamma Repeaters and the Anomalous X-ray Pulsars are believed to contain slowly spinning "magnetars". The enormous energy liberated in the 2004 Dece 27 giant flare from SGR 1806-20, together with the likely recurrence time of such…

天体物理学 · 物理学 2009-11-13 Simone Dall'Osso , Luigi Stella

Magnetic flares and induced oscillations of magnetars (super-magnetized neutron stars) are promising sources of gravitational waves (GWs). We suggest that the GW emission, if any, would last longer than the observed X-ray quasi-periodic…

高能天体物理现象 · 物理学 2015-04-23 Kazumi Kashiyama , Kunihito Ioka

The initial spin periods of newborn magnetars are \textbf{strongly associated with the origin of their strong magnetic fields, both of which can affect the electromagnetic radiation and gravitational waves (GWs) emitted at their birth.}…

高能天体物理现象 · 物理学 2024-11-01 Yu-Long Yan , Quan Cheng , Xiao-Ping Zheng , Xia-Xia Ouyang

Possessing the strongest magnetic fields in the Universe, magnetars mark an extremum of physical phenomena. The strength of their magnetic fields is sufficient to deform the shape of the stellar body, and when the rotational and magnetic…

太阳与恒星天体物理 · 物理学 2021-03-17 Samuel G. Frederick , Kristen L. Thompson , Michelle P. Kuchera

This paper suggests the idea that all neutron stars experienced at birth an ultrafast decay of their magnetic fields from their initial values to their current surface values. If the electromagnetic energy radiated during this field decay…

星系天体物理 · 物理学 2012-04-05 Ricardo Heras

Weak and continuous gravitational-wave (GW) radiation can be produced by newborn magnetars with deformed structure and is expected to be detected by the Einstein telescope in the near future. In this work we assume that the deformed…

高能天体物理现象 · 物理学 2022-06-01 Jun-Xiang Huang , Hou-Jun Lü , Jared Rice , En-Wei Liang

Newly born magnetars are promising sources for gravitational wave (GW) detection due to their ultra-strong magnetic fields and high spin frequencies. Within the scenario of a growing tilt angle between the star's spin and magnetic axis, due…

太阳与恒星天体物理 · 物理学 2015-10-21 Quan Cheng , Yun-Wei Yu , Xiao-Ping Zheng

In a newly born (high-temperature and Keplerian rotating) neutron star, r-mode instability can lead to stellar differential rotation, which winds the seed poloidal magnetic field ($\sim 10^{11}$ G) to generate an ultra-high ($\sim 10^{17}$…

高能天体物理现象 · 物理学 2014-04-30 Quan Cheng , Yun-Wei Yu

We show that NS's with large toroidal B-fields tend naturally to evolve into potent gravitational-wave (gw) emitters. The toroidal field B_t tends to distort the NS into a prolate shape, and this magnetic distortion can easily dominate over…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Curt Cutler

Differential rotation induced by the r-mode instability can generate very strong toroidal fields in the core of accreting, millisecond spinning neutron stars. We introduce explicitly the magnetic damping term in the evolution equations of…

高能天体物理现象 · 物理学 2015-06-04 Carmine Cuofano , Simone Dall'Osso , Alessandro Drago , Luigi Stella

Neutron stars can have, in some phases of their life, extremely strong magnetic fields, up to 10^15-10^16 G. These objects, named magnetars, could be powerful sources of gravitational waves, since their magnetic field could determine large…

太阳与恒星天体物理 · 物理学 2015-05-20 L. Gualtieri , R. Ciolfi , V. Ferrari

Two classes of high energy sources in our galaxy are believed to host magnetars, neutron stars whose emission results from the dissipation of their magnetic field. The extremely high magnetic field of magnetars distorts their shape, and…

宇宙学与河外天体物理 · 物理学 2015-05-19 Stefania Marassi , Riccardo Ciolfi , Raffaella Schneider , Luigi Stella , Valeria Ferrari

We study the imprint of magnetic fields on gravitational waves emitted during the inspiral phase of eccentric binary neutron star systems. While observations indicate that neutron stars typically exhibit strong magnetic fields in the range…

高能天体物理现象 · 物理学 2025-09-18 R. Prasad , Anushka Doke , Prayush Kumar

Two accretion columns have been argued to form over the surface of a newborn millisecond magnetar for an extremely high accretion rate $\gtrsim1.8\times10^{-2}M_\odot\ {\rm s^{-1}}$ that may occur in the core-collapse of a massive star. In…

高能天体物理现象 · 物理学 2020-01-08 Shu-Qing Zhong , Zi-Gao Dai , Xiang-Dong Li

Studies have shown that emission of gravitational wave drives an instability in the $r$-modes of young rapidly rotating neutron stars carrying away most of the angular momentum through gravitational wave emission in the first year or so…

广义相对论与量子宇宙学 · 物理学 2010-11-17 Bhim Prasad Sarmah , H. L. Duorah

After Michel (1994) introduced a phenomenological picture of `rapid magnetization' of newly born neutron stars (NSs), Muslimov & Page (1995) suggested that the physical conditions accompanying the formation of a NS may result in the surface…

天体物理学 · 物理学 2009-10-28 A. Muslimov , D. Page

Magnetars, highly magnetized neutron stars, host superconducting and superfluid phases. We develop a minimal model that captures the interplay between neutron superfluidity, proton superconductivity, and electromagnetic fields using the…

高能天体物理现象 · 物理学 2025-03-18 Sanjay Shukla , Rahul Pandit

This paper suggests the idea that all neutron stars experienced at birth an ultrafast decay of their magnetic fields from their initial values to their current surface values. If the electromagnetic energy radiated during this field decay…

高能天体物理现象 · 物理学 2013-10-17 Ricardo Heras

Binary neutron star (NS) mergers are among the most promising sources of gravitational waves (GWs), as well as candidate progenitors for short Gamma-Ray Bursts (SGRBs). Depending on the total initial mass of the system, and the NS equation…

高能天体物理现象 · 物理学 2015-06-22 Simone Dall'Osso , Bruno Giacomazzo , Rosalba Perna , Luigi Stella
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